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Document and Entity Informations - shares	6 Months Ended
Document and Entity Informations - shares	Jul. 02, 2011	Jul. 29, 2011
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 02, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q2
Trading Symbol	vsh
Entity Registrant Name	VISHAY INTERTECHNOLOGY INC
Entity Central Index Key	0000103730
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		143,709,508
Class B Convertible Common Stock
Entity Common Stock, Shares Outstanding		13,452,549

Consolidated Condensed Balance Sheets - USD ($) $ in Thousands	Jul. 02, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 692,592	$ 897,338
Short-term investments	314,408	0
Accounts receivable, net	345,121	330,556
Inventories:
Finished goods	122,594	109,762
Work in process	192,743	178,844
Raw materials	160,955	139,216
Total inventories	476,292	427,822
Deferred income taxes	32,831	31,903
Prepaid expenses and other current assets	140,565	106,885
Total current assets	2,001,809	1,794,504
Property and equipment, at cost:
Land	95,120	93,020
Buildings and improvements	502,452	477,518
Machinery and equipment	2,118,260	2,025,793
Construction in progress	62,938	75,051
Allowance for depreciation	(1,872,985)	(1,759,268)
Property, Plant and Equipment, Net, Total	905,785	912,114
Intangible assets, net	106,575	113,830
Other assets	142,526	145,645
Total assets	3,156,695	2,966,093
Liabilities and equity
Notes payable to banks	12	23
Trade accounts payable	184,256	167,795
Payroll and related expenses	119,163	122,234
Other accrued expenses	170,638	186,049
Income taxes	60,282	51,060
Total current liabilities	534,351	527,161
Long-term debt less current portion	422,422	431,682
Deferred income taxes	119,551	82,043
Deferred grant income	2,477	2,788
Other liabilities	133,203	134,152
Accrued pension and other postretirement costs	298,467	291,117
Total liabilities	1,510,471	1,468,943
Stockholders' equity:
Common stock	14,359	15,061
Capital in excess of par value	2,082,649	2,156,981
(Accumulated deficit) retained earnings	(584,855)	(742,237)
Accumulated other comprehensive income (loss)	127,086	60,491
Total Vishay stockholders' equity	1,640,584	1,491,731
Noncontrolling interests	5,640	5,419
Total equity	1,646,224	1,497,150
Total liabilities and equity	3,156,695	2,966,093
Class B Convertible Common
Stockholders' equity:
Common stock	$ 1,345	$ 1,435

Consolidated Condensed Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Net revenues	$ 709,838	$ 701,655	$ 1,404,989	$ 1,342,115
Costs of products sold	497,648	491,062	978,136	964,509
Gross profit	212,190	210,593	426,853	377,606
Selling, general, and administrative expenses	92,796	109,266	185,261	211,154
Executive compensation charge	3,889	0	3,889	0
Operating Income	115,505	101,327	237,703	166,452
Other income (expense):
Interest expense	(4,624)	(2,400)	(8,678)	(4,834)
Other	(28)	5,956	(535)	6,000
Nonoperating Income (Expense), Total	(4,652)	3,556	(9,213)	1,166
Income before taxes	110,853	104,883	228,490	167,618
Income taxes	28,357	27,918	70,387	45,014
Net earnings	82,496	76,965	158,103	122,604
Less: net earnings attributable to noncontrolling interests	401	306	721	525
Net earnings attributable to Vishay stockholders	$ 82,095	$ 76,659	$ 157,382	$ 122,079
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.51	$ 0.41	$ 0.97	$ 0.65
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.48	$ 0.40	$ 0.91	$ 0.63
Weighted average shares outstanding - basic (in shares)	160,801	186,667	163,006	186,654
Weighted average shares outstanding - diluted (in shares)	170,645	193,084	173,143	193,076

Consolidated Condensed Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010
Continuing operating activities
Net earnings	$ 158,103	$ 122,604
Adjustments to reconcile net earnings to net cash provided by continuing operating activities:
Depreciation and amortization	91,512	99,262
Gain on disposal of property and equipment	(930)	(92)
Accretion of interest on convertible debentures	861	0
Inventory write-offs for obsolescence	10,560	10,853
Deferred grant income	(235)	(313)
Other	3,557	13,436
Net change in operating assets and liabilities, net of effects of businesses acquired or spun-off	(89,512)	(68,199)
Net cash provided by continuing operating activities	173,916	177,551
Continuing investing activities
Capital expenditures	(45,365)	(49,193)
Proceeds from sale of property and equipment	1,473	590
Proceeds from loans receivable	0	15,000
Purchase of short-term investments	(391,524)	0
Maturity of short-term investments	82,990	0
Other investing activities	307	0
Net cash used in continuing investing activities	(352,119)	(33,603)
Continuing financing activities
Proceeds from long-term borrowings	150,000	0
Issuance costs	(4,144)	(456)
Common stock repurchase	(150,000)	0
Principal payments on long-term debt and capital leases	(6)	(14,129)
Net payments on revolving credit lines	(60,000)	0
Net changes in short-term borrowings	(9)	554
Proceeds from stock options exercised	7,938	0
Excess tax benefit from stock options exercised	555	0
Distributions to noncontrolling interests	(500)	(516)
Net cash used in continuing financing activities	(56,166)	(14,547)
Effect of exchange rate changes on cash and cash equivalents	29,623	(33,927)
Net (decrease) increase in cash and cash equivalents from continuing activities	(204,746)	95,474
Net cash used in discontinued operating activities	0	(82)
Net cash used in discontinued investing activities	0	0
Net cash used in discontinued financing activities	0	0
Net cash used in discontinued operations	0	(82)
Net (decrease) increase in cash and cash equivalents	(204,746)	95,392
Cash and cash equivalents at beginning of period	897,338	579,189
Cash and cash equivalents at end of period	$ 692,592	$ 674,581

Consolidated Condensed Statement of Equity - 6 months ended Jul. 02, 2011 - USD ($) $ in Thousands	Common Stock	Class B Convertible Common Stock	Capital in Excess of Par Value	Retained Earnings (Accumulated Deficit)	Accumulated Other Comprehensive Income (Loss)	Total Vishay Stockholders' Equity	Noncontrolling Interests	Total
Balance at Dec. 31, 2010	$ 15,061	$ 1,435	$ 2,156,981	$ (742,237)	$ 60,491	$ 1,491,731	$ 5,419	$ 1,497,150
Net earnings	0	0	0	157,382	0	157,382	721	158,103
Other comprehensive income	0	0	0	0	66,595	66,595	0	66,595
Comprehensive income						223,977	721	224,698
Distributions to noncontrolling interests	0	0	0	0	0	0	(500)	(500)
Phantom and restricted stock issuances (167,629 shares)	17	0	(128)	0	0	(111)	0	(111)
Issuance of convertible debentures due 2041	0	0	61,758	0	0	61,758	0	61,758
Stock repurchase (8,620,689 shares)	(862)	0	(149,138)	0	0	(150,000)	0	(150,000)
Stock compensation expense	0	0	4,736	0	0	4,736	0	4,736
Stock options exercised (533,731 shares)	53	0	7,885	0	0	7,938	0	7,938
Tax effects of stock plan	0	0	555	0	0	555	0	555
Conversions from Class B to common stock (900,290 shares)	90	(90)	0	0	0	0	0	0
Balance at Jul. 02, 2011	$ 14,359	$ 1,345	$ 2,082,649	$ (584,855)	$ 127,086	$ 1,640,584	$ 5,640	$ 1,646,224

Consolidated Condensed Statement of Equity [Parenthetical]	6 Months Ended
	Jul. 02, 2011 shares
Statement of Stockholders' Equity [Abstract]
Phantom and restricted stock issuances (Shares)	167,629
Stock repurchase, (in shares)	8,620,689
Number of options, exercised	(534,000)
Conversions from Class B to common stock (in shares)	900,290

- Definition

Number of shares issued during the period as a result of the conversion of convertible securities.

+ References

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Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-Name Regulation S-X (SX)
-Number 210
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-Article 3

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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-Paragraph 4, 5
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+ Details

- Definition

Number of shares issued during the period related to Restricted Stock Awards, net of any shares forfeited.

+ References + Details

Basis of Presentation	6 Months Ended
Basis of Presentation	Jul. 02, 2011
Accounting Policies [Abstract]
Basis of Presentation	Note 1 – Basis of Presentation The accompanying unaudited consolidated condensed financial statements of Vishay Intertechnology, Inc. (“Vishay” or the “Company”) have been prepared in accordance with the instructions to Form 10-Q and therefore do not include all information and footnotes necessary for presentation of financial position, results of operations, and cash flows required by accounting principles generally accepted in the United States (“GAAP”) for complete financial statements. The information furnished reflects all normal recurring adjustments which are, in the opinion of management, necessary for a fair summary of the financial position, results of operations, and cash flows for the interim periods presented. The financial statements should be read in conjunction with the consolidated financial statements filed with the Company’s Annual Report on Form 10-K for the year ended December 31, 2010. The results of operations for the six fiscal months ended July 2, 2011 are not necessarily indicative of the results to be expected for the full year. The Company reports interim financial information for 13-week periods beginning on a Sunday and ending on a Saturday, except for the first fiscal quarter, which always begins on January 1, and the fourth fiscal quarter, which always ends on December 31. The four fiscal quarters in 2011 end on April 2, 2011, July 2, 2011, October 1, 2011, and December 31, 2011. The four fiscal quarters in 2010 ended on April 3, 2010, July 3, 2010, October 2, 2010, and December 31, 2010, respectively. On July 6, 2010, Vishay completed the spin-off of Vishay Precision Group, Inc. (“VPG”) through a tax-free stock dividend to Vishay’s stockholders. Until July 6, 2010, VPG was part of Vishay and its results of operations and cash flows are included in the balances reported in these consolidated condensed financial statements for periods prior to the completion of the spin-off. In preparation for the spin-off of VPG, the Company realigned its reportable business segments structure in the second fiscal quarter of 2010 to be consistent with changes made to its management reporting. Refer to Note 8 for a description of the new segment reporting structure. Recently Issued Accounting Guidance In January 2010, the Financial Accounting Standards Board (“FASB”) updated the accounting guidance related to fair value measurements disclosures. The updated guidance (i) requires separate disclosure of significant transfers in and out of Levels 1 and 2 fair value measurements, (ii) requires disclosure of Level 3 fair value measurements activity on a gross basis, (iii) clarifies existing disaggregation requirements, (iv) and clarifies existing input and valuation technique disclosure requirements. The updated guidance was effective for the Company for interim and annual periods beginning after January 1, 2010, except for the Level 3 fair value measurement disclosure requirements, which are effective for fiscal years beginning after January 1, 2011. Vishay adopted the then-effective aspects of the guidance on January 1, 2010 and adopted the remaining guidance on January 1, 2011. The adoption of the guidance had no effect on the Company’s financial position, results of operations, or liquidity. In May 2011, the FASB issued Accounting Standards Update (“ASU”) No. 2011-4, Fair Value Measurement (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in U.S. GAAP and IFRS . The ASU generally aligns the principles for fair value measurements and the related disclosure requirements under GAAP and IFRS . The updated guidance clarifies existing fair value measurement and disclosure requirements and requires additional disclosure requirements. The ASU is effective for the Company for interim and annual periods beginning after January 1, 2012. The adoption of the ASU is not expected to have any effect on the Company’s financial position, results of operations, or liquidity. In June 2011, the FASB issued ASU No. 2011-5, Comprehensive Income (Topic 220), Presentation of Comprehensive Income . The ASU requires that all non-owner changes in stockholders’ equity be presented either in a single continuous statement of comprehensive income or in two separate, but consecutive statements. The ASU is effective for the Company for interim and annual periods beginning after January 1, 2012. The adoption of the ASU is not expected to have any effect on the Company’s financial position, results of operations, or liquidity. Reclassifications Certain prior period amounts have been reclassified to conform to the current financial statement presentation.

Acquisition and Divestiture Activities	6 Months Ended
Acquisition and Divestiture Activities	Jul. 02, 2011
Business Combinations [Abstract]
Acquisition and Divestiture Activities	Note 2 – Acquisition and Divestiture Activities As part of its growth strategy, the Company seeks to expand through targeted acquisitions of other manufacturers of electronic components that have established positions in major markets, reputations for product quality and reliability, and product lines with which the Company has substantial marketing and technical expertise. Spin-off of Vishay Precision Group, Inc. On October 27, 2009, Vishay announced that it intended to spin off its measurements and foil resistors businesses into an independent, publicly-traded company to be named Vishay Precision Group, Inc. On June 15, 2010, the Board of Directors of Vishay approved the spin-off of VPG and on July 6, 2010, Vishay completed the spin-off through a tax-free stock dividend to Vishay’s stockholders. Vishay’s common stockholders received 1 share of VPG common stock for every 14 shares of Vishay common stock they held on the record date, June 25, 2010, and Vishay’s Class B common stockholders received 1 share of VPG Class B common stock for every 14 shares of Vishay Class B common stock they held on the record date. Until July 6, 2010, VPG was part of Vishay and its results of operations and cash flows are included in the amounts reported in these consolidated condensed financial statements for periods prior to the completion of the spin-off. The product lines that comprise VPG are included in the VPG reporting segment. See Note 8 for further information on the effect that VPG had on Vishay’s consolidated results. Relationship with VPG after Spin-off Following the spin-off, VPG is an independent company and Vishay retains no ownership interest. However, two members of the VPG board of directors also serve on Vishay’s board of directors. In connection with the completion of the spin-off, on July 6, 2010, Vishay and its subsidiaries entered into several agreements with VPG and its subsidiaries that govern the relationship of the parties following the spin-off. Among the agreements entered into with VPG and its subsidiaries were a transition services agreement, several lease agreements, and supply agreements. None of the agreements are expected to have a material impact on Vishay’s financial position, results of operations, or liquidity. Vishay also entered into a trademark license agreement with VPG pursuant to which Vishay granted VPG the license to use certain trademarks, service marks, logos, trade names, entity names, and domain names which include the term “Vishay.” The license granted VPG the limited, exclusive, royalty-free right and license to use certain marks and names incorporating the term “Vishay” in connection with the design, development, manufacture, marketing, provision and performance of certain VPG products that do not compete with any products within Vishay’s product range as constituted immediately following the separation and certain services provided in connection with the products. The license cannot be terminated except as a result of willful misconduct or liquidation bankruptcy of VPG. As a result of this continuing involvement, Vishay did not restate prior periods to present VPG as a discontinued operation. Prepayment of KEMET Loan Receivable In conjunction with the acquisition of the wet tantalum capacitor business of KEMET Corporation (“KEMET”) on September 15, 2008, Vishay issued a three-year term loan of $15 million to KEMET. On May 5, 2010, KEMET prepaid the entire principal amount of the term loan plus interest.

Income Taxes	6 Months Ended
Income Taxes	Jul. 02, 2011
Income Tax Disclosure [Abstract]
Income Taxes	Note 3 – Income Taxes The provision for income taxes consists of provisions for federal, state, and foreign income taxes. The effective tax rates for the periods ended July 2, 2011 and July 3, 2010 reflect the Company’s expected tax rate on reported income from continuing operations before income tax and tax adjustments. The Company operates in a global environment with significant operations in various locations outside the United States. Accordingly, the consolidated income tax rate is a composite rate reflecting the Company’s earnings and the applicable tax rates in the various locations where the Company operates. In January 2011, a new tax law was enacted in Israel which effectively lowered the corporate income tax rate on certain types of income earned after December 31, 2010. Accordingly, the Company’s deferred tax assets in Israel were written down to reflect the lower rate and a one-time tax expense of $10.0 million was recorded in the consolidated condensed statement of operations during the six fiscal months ended July 2, 2011. During the six fiscal months ended July 2, 2011, the liabilities for unrecognized tax benefits increased by $4.7 million on a net basis, principally due to increases for positions taken during prior periods, interest, and foreign exchange effects.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 136, 172
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 43, 44, 45, 46, 47, 48, 49
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
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-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
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-Topic 740
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-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32559-109319

+ Details

Long-Term Debt

6 Months Ended

Jul. 02, 2011

Debt Disclosure [Abstract]

Long-Term Debt

Note 4 – Long-Term Debt

Long-term debt consists of the following (in thousands):

	July 2,		December 31,
	2011		2010
Credit facility	$	180,000	$	240,000
Exchangeable unsecured notes, due 2102		95,042		95,042
Convertible senior debentures, due 2040		97,407		96,640
Convertible senior debentures, due 2041		49,973		-
		422,422		431,682
Less current portion		-		-
	$	422,422	$	431,682

Convertible Senior Debentures, due 2041

On May 13, 2011, Vishay issued $150 million principal amount of 2.25% convertible senior debentures due 2041 to qualified institutional investors. Vishay used the net proceeds from this offering, together with cash on hand, to repurchase 8,620,689 shares of common stock for an aggregate purchase price of $150 million.

GAAP requires an issuer to separately account for the liability and equity components of the instrument in a manner that reflects the issuer’s nonconvertible debt borrowing rate when interest costs are recognized in subsequent periods. The resulting discount on the debt is amortized as non-cash interest expense in future periods.

The carrying values of the liability and equity components of the convertible debentures are reflected in the Company’s consolidated condensed balance sheets as follows (in thousands):

	July 2,
	2011
Liability component:
Principal amount of the debentures	$	150,000
Unamortized discount		(100,240	)
Embedded derivative		213
Carrying value of liability component	$	49,973

Equity component - net carrying value	$	61,758

Interest is payable on the debentures semi-annually at a rate of 2.25% per annum; however, the remaining debt discount is being amortized as additional non-cash interest expense using an effective annual interest rate of 8.375% based on the Company’s estimated nonconvertible debt borrowing rate at the time of issuance. In addition to ordinary interest, beginning on May 15, 2021, contingent interest will accrue in certain circumstances relating to the trading price of the debentures and under certain other circumstances.

Interest expense related to the debentures is reflected on the consolidated condensed statements of operations as follows (in thousands):

	Fiscal quarter and six
	fiscal months ended
	July 2, 2011
Contractual coupon interest	$	441
Non-cash amortization of debt discount		102
Non-cash amortization of deferred financing costs		6
Non-cash change in value of derivative liability		2
Total interest expense related to the debentures	$	551

Prior to February 15, 2041, the holders may only convert their debentures under the following circumstances: (1) during any fiscal quarter commencing after the fiscal quarter ending October 1, 2011 if the sale price of Vishay common stock reaches 130% of the conversion price ($24.73) for a specified period; (2) the trading price of the debentures falls below 98% of the product of the sale price of Vishay’s common stock and the conversion rate for a specified period; (3) Vishay calls any or all of the debentures for redemption, at any time prior to the close of business on the third scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. None of these conditions had occurred as of July 2, 2011.

The debentures are initially convertible, subject to certain conditions, into cash, shares of Vishay’s common stock or a combination thereof, at Vishay’s option, at an initial conversion rate of 52.5659 shares of common stock per $1,000 principal amount of debentures. This represents an initial effective conversion price of approximately $19.02 per share. This initial conversion price represents a premium of 12.5% to the closing price of Vishay’s common stock on the date the offering commenced, which was $16.91 per share. At the direction of its Board of Directors, Vishay intends, upon conversion, to repay the principal amount of the debentures in cash and settle any additional amounts in shares. Vishay must provide additional shares upon conversion if there is a “fundamental change” in the business as defined in the indenture governing the debentures.

Vishay may not redeem the debentures prior to May 20, 2021, except in connection with certain tax-related events. On or after May 20, 2021 and prior to the maturity date, Vishay may redeem for cash all or part of the debentures at a redemption price equal to 100% of the principal amount of the debentures to be redeemed, plus accrued and unpaid interest to, but excluding, the redemption date, if the last reported sale price of Vishay’s common stock has been at least 150% of the conversion price then in effect for at least 20 trading days during any 30 consecutive trading day period prior to the date on which Vishay provides notice of redemption.

Convertible Senior Debentures, due 2040

On November 9, 2010, Vishay issued $275 million principal amount of 2.25% convertible senior debentures due 2040 to qualified institutional investors. GAAP requires an issuer to separately account for the liability and equity components of a convertible debt instrument in a manner that reflects the issuer’s nonconvertible debt borrowing rate when interest costs are recognized in subsequent periods. The resulting discount on the debt is amortized as non-cash interest expense in future periods.

The carrying values of the liability and equity components of the convertible debentures are reflected in the Company’s consolidated condensed balance sheets as follows (in thousands):

	July 2,			December 31,
	2011			2010
Liability component:
Principal amount of the debentures	$	275,000		$	275,000
Unamortized discount		(177,920	)		(178,679	)
Embedded derivative		327			319
Carrying value of liability component	$	97,407		$	96,640

Equity component - net carrying value	$	110,094		$	110,094

Interest is payable on the debentures semi-annually at a rate of 2.25% per annum; however, the remaining debt discount is being amortized as additional non-cash interest expense using an effective annual interest rate of 8.00% based on the Company’s estimated nonconvertible debt borrowing rate at the time of issuance. In addition to ordinary interest, beginning on November 15, 2020, contingent interest will accrue in certain circumstances relating to the trading price of the debentures and under certain other circumstances.

Interest expense related to the debentures is reflected on the consolidated condensed statements of operations as follows (in thousands):

	Fiscal quarter ended			Six fiscal months ended
	July 2, 2011		July 2, 2011
Contractual coupon interest	$	1,547	$	3,094
Non-cash amortization of debt discount		383		759
Non-cash amortization of deferred financing costs		22		44
Non-cash change in value of derivative liability		69		8
Total interest expense related to the debentures	$	2,021	$	3,905

- Definition

The entire disclosure for information about short-term and long-term debt arrangements, which includes amounts of borrowings under each line of credit, note payable, commercial paper issue, bonds indenture, debenture issue, own-share lending arrangements and any other contractual agreement to repay funds, and about the underlying arrangements, rationale for a classification as long-term, including repayment terms, interest rates, collateral provided, restrictions on use of assets and activities, whether or not in compliance with debt covenants, and other matters important to users of the financial statements, such as the effects of refinancing and noncompliance with debt covenants.

+ References + Details

Comprehensive Income (Loss)

6 Months Ended

Jul. 02, 2011

Stockholders' Equity Note [Abstract]

Comprehensive Income (Loss)

Note 5 – Comprehensive Income (Loss)

Comprehensive income (loss) includes the following components (in thousands) :

	Fiscal quarters ended						Six fiscal months ended
	July 2, 2011			July 3, 2010			July 2, 2011			July 3, 2010
Net earnings	$	82,496		$	76,965		$	158,103		$	122,604
Other comprehensive income (loss):
Foreign currency translation
adjustment		18,691			(50,012	)		64,419			(79,496	)
Unrealized gain (loss) on available
for sale securities		(851	)		(528	)		(240	)		(133	)
Pension and other postretirement
adjustments		482			(6,768	)		2,416			(4,998	)
Total other comprehensive income (loss)		18,322			(57,308	)		66,595			(84,627	)
Comprehensive income	$	100,818		$	19,657		$	224,698		$	37,977
Less: Comprehensive income
attributable to noncontrolling interests		401			306			721			525
Comprehensive income attributable
to Vishay stockholders	$	100,417		$	19,351		$	223,977		$	37,452

Other comprehensive income (loss) includes Vishay’s proportionate share of other comprehensive income (loss) of nonconsolidated subsidiaries accounted for under the equity method.

- Definition

The entire disclosure for comprehensive income. Includes, but is not limited to, the following: 1) the amount of income tax expense or benefit allocated to each component of other comprehensive income, including reclassification adjustments, 2) the reclassification adjustments for each classification of other comprehensive income and 3) the ending accumulated balances for each component of comprehensive income. Components of comprehensive income include: (1) foreign currency translation adjustments; (2) gains (losses) on foreign currency transactions that are designated as, and are effective as, economic hedges of a net investment in a foreign entity; (3) gains (losses) on intercompany foreign currency transactions that are of a long-term-investment nature, when the entities to the transaction are consolidated, combined, or accounted for by the equity method in the reporting enterprise's financial statements; (4) change in the market value of a futures contract that qualifies as a hedge of an asset reported at fair value; (5) unrealized holding gains (losses) on available-for-sale securities and that resulting from transfers of debt securities from the held-to-maturity category to the available-for-sale category; (6) a net loss recognized as an additional pension liability not yet recognized as net periodic pension cost; and (7) the net gain (loss) and net prior service cost or credit for pension plans and other postretirement benefit plans.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 14-26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e637-108580

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-Paragraph 14
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-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=6959260&loc=d3e187085-122770

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Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Reclassification Adjustments
-URI http://asc.fasb.org/extlink&oid=6522872

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-Name Accounting Standards Codification
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-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e689-108580

+ Details

Pensions and Other Postretirement Benefits

6 Months Ended

Jul. 02, 2011

Compensation and Retirement Disclosure [Abstract]

Pensions and Other Postretirement Benefits

Note 6 – Pensions and Other Postretirement Benefits

The Company maintains various retirement benefit plans.

The following table shows the components of the net periodic pension cost for the second fiscal quarters of 2011 and 2010 for the Company’s defined benefit pension plans (in thousands) :

	Fiscal quarters ended						Fiscal quarters ended
	July 2, 2011						July 3, 2010
	U.S.			Non-U.S.			U.S.			Non-U.S.
	Plans			Plans			Plans			Plans
Net service cost	$	-		$	849		$	-		$	757
Interest cost		4,081			2,679			3,992			2,686
Expected return on plan assets		(4,888	)		(398	)		(4,648	)		(457	)
Amortization of prior service cost		612			-			158			-
Amortization of losses		2,201			254			2,352			45
Curtailments and settlements		148			-			-			-
Net periodic benefit cost	$	2,154		$	3,384		$	1,854		$	3,031

The following table shows the components of the net periodic pension cost for the six fiscal months ended July 2, 2011 and July 3, 2010 for the Company’s defined benefit pension plans (in thousands) :

	Six fiscal months ended						Six fiscal months ended
	July 2, 2011						July 3, 2010
	U.S.			Non-U.S.			U.S.			Non-U.S.
	Plans			Plans			Plans			Plans
Net service cost	$	-		$	1,676		$	-		$	1,534
Interest cost		8,149			5,241			8,057			5,563
Expected return on plan assets		(9,541	)		(789	)		(9,049	)		(923	)
Amortization of prior service cost		1,253			-			202			-
Amortization of losses		4,303			503			4,657			87
Curtailments and settlements		148			-			-			-
Net periodic benefit cost	$	4,312		$	6,631		$	3,867		$	6,261

The following table shows the components of the net periodic benefit cost for the second fiscal quarters of 2011 and 2010 for the Company’s other postretirement benefit plans (in thousands) :

	Fiscal quarter ended					Fiscal quarter ended
	July 2, 2011					July 3, 2010
	U.S.			Non-U.S.		U.S.			Non-U.S.
	Plans			Plans		Plans			Plans
Service cost	$	20		$	71	$	29		$	61
Interest cost		146			73		196			70
Amortization of prior service (credit) cost		(111	)		-		(110	)		-
Amortization of transition obligation		12			-		18			-
Amortization of gains		(61	)		-		(51	)		-
Net periodic benefit cost	$	6		$	144	$	82		$	131

The following table shows the components of the net periodic pension cost for the six fiscal months ended July 2, 2011 and July 3, 2010 for the Company’s other postretirement benefit plans (in thousands) :

		Six fiscal months ended					Six fiscal months ended
		July 2, 2011					July 3, 2010
	U.S.			Non-U.S.		U.S.			Non-U.S.
	Plans			Plans		Plans			Plans
Service cost	$	39		$	138	$	57		$	128
Interest cost		292			142		391			146
Amortization of prior service (credit) cost		(221	)		-		(220	)		-
Amortization of transition obligation		24			-		37			-
Amortization of gains		(122	)		-		(102	)		-
Net periodic benefit cost	$	12		$	280	$	163		$	274

- Definition

The entire disclosure for pension and other postretirement benefits.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
-Subparagraph h
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 5
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
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-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
-Paragraph 8
-Subparagraph m
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 106
-Paragraph 518
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 87
-Paragraph 264
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 03-2
-Paragraph 8
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 30
-Paragraph 26
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 10: http://www.xbrl.org/2003/role/presentationRef
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Reference 11: http://www.xbrl.org/2003/role/presentationRef
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-Number 158
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 132R
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Implementation Guide (Q and A)
-Number FAS88
-Paragraph 63
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-URI http://asc.fasb.org/topic&trid=2235017

+ Details

Stock-Based Compensation

6 Months Ended

Jul. 02, 2011

Disclosure of Compensation Related Costs, Share-based Payments [Abstract]

Stock-Based Compensation

Note 7 – Stock-Based Compensation

The Company has various stockholder-approved programs which allow for the grant of stock-based compensation to officers, employees, and non-employee directors.

The amount of compensation cost related to stock-based payment transactions is measured based on the grant-date fair value of the equity instruments issued. The fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model. The Company determines compensation cost for restricted stock units (“RSUs”), phantom stock units, and restricted stock based on the grant-date fair value of the underlying common stock. Compensation cost is recognized over the period that an officer, employee, or non-employee director provides service in exchange for the award.

The following table summarizes stock-based compensation expense recognized (in thousands) :

	Fiscal quarters ended					Six fiscal months ended
	July 2, 2011			July 3, 2010		July 2, 2011			July 3, 2010
Stock options	$	(245	)	$	161	$	(125	)	$	354
Restricted stock units		3,573			592		4,639			812
Phantom stock units		-			-		222			175
Total	$	3,328		$	753	$	4,736		$	1,341

Stock-based compensation expense for the fiscal quarter and six fiscal months ended July 2, 2011 includes amounts associated with the acceleration of vesting of awards upon the death of Vishay’s Executive Chairman of the Board of Directors, Dr. Felix Zandman. In accordance with Dr. Zandman’s employment agreement, 98,375 RSUs held by Dr. Zandman immediately vested and were contributed to his estate upon his death and 202,330 RSUs with performance-based vesting criteria will be contributed to his estate upon the Company’s achievement of the performance-based criteria. Additionally, the vesting of 77,334 stock options was accelerated. These options may be exercised by Dr. Zandman’s estate within one year from his death pursuant to the Company’s 2007 Stock Incentive Program (as amended, the “2007 Program”).

The following table summarizes unrecognized compensation cost and the weighted average remaining amortization periods at July 2, 2011 (dollars in thousands, amortization periods in years) :

			Weighted Average
	Unrecognized		Remaining
	Compensation		Amortization
	Cost		Periods
Stock options	$	208	1.6
Restricted stock units		6,248	1.9
Phantom stock units		-	0.0
Total	$	6,456

2007 Stock Incentive Plan

The Company’s 2007 Program permits the grant of up to 3,000,000 shares of restricted stock, unrestricted stock, RSUs, and stock options, to officers, employees, and non-employee directors. Such instruments are available for grant until May 22, 2017.

The 2007 Program was originally approved by stockholders of the Company on May 22, 2007, as the “2007 Stock Option Program.” On May 28, 2008, the Company’s stockholders approved amendments to the 2007 Stock Option Program, which was then renamed the “2007 Stock Incentive Program.”

On February 23, 2011, the Board of Directors of the Company amended and restated the 2007 Program. The amendment eliminated share recycling, so that on the exercise of an option where the exercise price is paid via the tender of previously-owned shares or pursuant to an “immaculate cashless exercise,” the total “gross” number of option shares exercised is removed from the pool of shares available for future issuance. Similarly, shares withheld to pay income taxes in connection with the exercise of an option are also removed from the pool. The amendment also restricts re-pricing and cash repurchases of options without the prior approval of stockholders.

Stock Options

In addition to stock options outstanding pursuant to the 2007 Program, the Company has stock options outstanding under previous stockholder-approved stock option programs. These programs are more fully described in Note 12 to the Company’s consolidated financial statements included in its Annual Report on Form 10-K for the year ended December 31, 2010. No additional options may be granted pursuant to these programs.

Option activity under the stock option plans as of July 2, 2011 and changes during the six fiscal months then ended are presented below (number of options in thousands, contractual life in years) :

					Weighted
			Weighted		Average
	Number		Average		Remaining
	of		Exercise		Contractual
	Options		Price		Life
Outstanding:
January 1, 2011	1,254		$	15.04
Granted	-			-
Exercised	(534	)		14.87
Cancelled or forfeited	(40	)		15.18
Outstanding at July 2, 2011	680		$	15.16	1.67

Vested and expected to vest
at July 2, 2011	680		$	15.16	1.67
Exercisable at July 2, 2011	582		$	15.41	1.33

During the six fiscal months ended July 2, 2011, 155,000 options vested. At July 2, 2011, there are 98,000 unvested options outstanding, with a weighted average grant-date fair value of $8.50 per option.

The pretax aggregate intrinsic value (the difference between the closing stock price on the last trading day of the second fiscal quarter of 2011 of $15.70 per share and the exercise price, multiplied by the number of in-the-money options) that would have been received by the option holders had all option holders exercised their options on July 2, 2011 is $549,000. This amount changes based on changes in the market value of the Company’s common stock. During the six fiscal months ended July 2, 2011, 534,000 options were exercised. The total intrinsic value of options exercised during the six fiscal months ended July 2, 2011 was approximately $1,628,000.

Restricted Stock Units

RSU activity under the 2007 Program as of July 2, 2011 and changes during the six fiscal months then ended are presented below (number of RSUs in thousands) :

			Weighted Average
	Number		grant date
	of		fair value
	RSUs		per unit
Outstanding:
January 1, 2011	634		$	9.61
Granted	398			16.91
Vested*	(126	)		10.95
Cancelled or forfeited	-			-
Outstanding at July 2, 2011	906		$	12.63

Expected to vest at July 2, 2011	906
____________________

* The number of RSUs vested includes shares that the Company withheld on behalf of employees to satisfy the statutory tax withholding requirements.

The Company recognizes compensation cost for RSUs that are expected to vest. The Company expects all performance-based vesting criteria to be achieved. RSUs with performance-based vesting criteria are expected to vest as follows (number of RSUs in thousands) :

Vesting Date		Number of RSUs
January 1, 2013		324
January 1, 2014		215

Phantom Stock Plan

The Company maintains a phantom stock plan for certain senior executives. The Phantom Stock Plan authorizes the grant of up to 300,000 phantom stock units to the extent provided for in employment agreements with the Company. Following the completion of the spin-off of VPG in 2010 and the passing of Dr. Zandman in the second fiscal quarter of 2011, the Company has such employment arrangements with two of its executives. The arrangements provide for an annual grant of 5,000 shares of phantom stock to each of these executives on the first trading day of the year. If the Company later enters into other employment arrangements with other individuals that provide for the granting of phantom stock, those individuals also will be eligible for grants under the Phantom Stock Plan. No grants may be made under the Phantom Stock Plan other than under the terms of employment arrangements with the Company. Each phantom stock unit entitles the recipient to receive a share of common stock at the individual’s termination of employment or any other future date specified in the employment agreement. The phantom stock units are fully vested at all times. In accordance with the Phantom Stock Plan, following Dr. Zandman’s passing, 43,667 phantom stock units held by Dr. Zandman’s estate were redeemed as common stock.

Phantom stock units activity under the 2007 Program as of July 2, 2011 and changes during the six fiscal months then ended are presented below (number of phantom stock units in thousands) :

	Number		Grant date
	of		fair value
	Units		per unit
Outstanding:
January 1, 2011	116
Granted	15		$	14.78
Redeemed for common stock	(44	)
Outstanding at July 2, 2011	87

- Definition

The entire disclosure for compensation-related costs for equity-based compensation, which may include disclosure of policies, compensation plan details, allocation of equity compensation, incentive distributions, equity-based arrangements to obtain goods and services, deferred compensation arrangements, employee stock ownership plan details and employee stock purchase plan details.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 123R
-Paragraph 64, 65, A240
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Statement of Position (SOP)
-Number 93-6
-Paragraph 53
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 14

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
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-URI http://asc.fasb.org/extlink&oid=6418621&loc=d3e17540-113929

+ Details

Segment Information

6 Months Ended

Jul. 02, 2011

Segment Reporting [Abstract]

Segment Information

Note 8 – Segment Information

In preparation for the spin-off of VPG, which was completed on July 6, 2010, the Company realigned its reportable business segments structure in the second fiscal quarter of 2010 to be consistent with changes made to its management reporting. The changes made to management reporting included separating the former Semiconductors reporting segment into MOSFETs, Diodes, and Optoelectronic Components and separating the former Passive Components reporting segment into Resistors And Inductors, Capacitors, and Vishay Precision Group. The changes were necessary due to the former Passive Components segment no longer being comparable after the completion of the spin-off of VPG, the need for discrete information regarding VPG, and the increased interest of management and outside investors in more discrete financial information. Effective beginning in the second fiscal quarter of 2010, the chief operating decision maker began making strategic and operating decisions with regards to assessing performance and allocating resources based on this new segment structure. Following the completion of the spin-off in the third fiscal quarter of 2010, the Company has five reporting segments.

The Company evaluates business segment performance on operating income, exclusive of certain items (“segment operating income”). Beginning in the second fiscal quarter of 2010, the Company changed its definition of segment operating income to exclude such costs as global operations, sales and marketing, information systems, finance and administration groups. These costs are managed by executives that report to the chief operating decision maker and were formerly included in segment operating income. Only dedicated, direct selling, general, and administrative expenses of the segments are included in the calculation of segment operating income. Additionally, management has always evaluated segment performance excluding items such as restructuring and severance costs, asset write-downs, goodwill and indefinite-lived intangible asset impairments, inventory write-downs, gains or losses on purchase commitments, and other items. Management believes that evaluating segment performance excluding such items is meaningful because it provides insight with respect to intrinsic operating results of the Company. These items represent reconciling items between segment operating income and consolidated operating income. Business segment assets are the owned or allocated assets used by each business.

Until July 6, 2010, VPG was part of Vishay and its results of operations and cash flows are included in the amounts reported in these consolidated condensed financial statements for the six fiscal months ended July 3, 2010. Excluding the non-recurring costs of the spin-off incurred by Vishay, VPG contributed $9,716,000 of income before taxes, $5,811,000 of net earnings attributable to Vishay stockholders, and $0.03 per diluted share attributable to Vishay stockholders to Vishay’s results for the six fiscal months ended July 3, 2010.

The following table sets forth business segment information (in thousands) :

					Optoelectronic
	MOSFETs		Diodes		Components		Resistors And Inductors		Capacitors		Vishay Precision Group		Total
Fiscal quarter ended July 2, 2011:
Product Sales	$	153,180	$	169,613	$	63,761	$	167,430	$	154,295	$	-	$	708,279
Royalty Revenues		65		-		-		1,494		-		-	$	1,559
Total Revenue	$	153,245	$	169,613	$	63,761	$	168,924	$	154,295	$	-	$	709,838

Gross Margin	$	42,811	$	43,699	$	21,961	$	58,956	$	44,763	$	-	$	212,190

Fiscal quarter ended July 3, 2010:
Product Sales	$	153,207	$	151,026	$	57,657	$	151,941	$	133,346	$	52,914	$	700,091
Royalty Revenues		48		-		27		1,489		-		-	$	1,564
Total Revenue	$	153,255	$	151,026	$	57,684	$	153,430	$	133,346	$	52,914	$	701,655

Gross Margin	$	46,887	$	35,865	$	20,288	$	54,886	$	32,685	$	19,982	$	210,593

Six fiscal months ended July 2, 2011:
Product Sales	$	296,081	$	329,030	$	121,467	$	339,349	$	316,147	$	-	$	1,402,074
Royalty Revenues		162		-		42		2,711		-		-	$	2,915
Total Revenue	$	296,243	$	329,030	$	121,509	$	342,060	$	316,147	$	-	$	1,404,989

Gross Margin	$	82,250	$	82,839	$	41,909	$	120,114	$	99,741	$	-	$	426,853

Six fiscal months ended July 3, 2010:
Product Sales	$	280,831	$	291,272	$	116,053	$	299,398	$	250,677	$	101,089	$	1,339,320
Royalty Revenues		48		-		60		2,687		-		-	$	2,795
Total Revenue	$	280,879	$	291,272	$	116,113	$	302,085	$	250,677	$	101,089	$	1,342,115

Gross Margin	$	73,905	$	63,511	$	39,944	$	106,806	$	56,410	$	37,030	$	377,606

	Fiscal quarters ended						Six fiscal months ended
	July 2, 2011			July 3, 2010			July 2, 2011			July 3, 2010
Operating margin reconciliation:
MOSFETs	$	32,522		$	37,864		$	61,932		$	56,154
Diodes		37,208			30,121			70,008			51,956
Optoelectronic Components		18,330			17,454			34,687			34,115
Resistors And Inductors		51,757			48,497			105,861			93,737
Capacitors		38,584			27,111			86,917			44,873
Vishay Precision Group		-			10,871			-			18,949
Unallocated Selling, General, and Administrative Expenses		(59,007	)		(70,591	)		(117,813	)		(133,332	)
Executive Compensation Charge		(3,889	)		-			(3,889	)		-
Consolidated Operating Income	$	115,505		$	101,327		$	237,703		$	166,452

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 131
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Earnings Per Share

6 Months Ended

Jul. 02, 2011

Earnings Per Share [Abstract]

Earnings Per Share

Note 9 – Earnings Per Share

The following table sets forth the computation of basic and diluted earnings per share attributable to Vishay stockholders (in thousands, except per share amounts) :

	Fiscal quarters ended				Six fiscal months ended
	July 2, 2011		July 3, 2010		July 2, 2011		July 3, 2010
Numerator:
Numerator for basic earnings per share:
Net earnings	$	82,095	$	76,659	$	157,382	$	122,079

Adjustment to the numerator for continuing
operations and net earnings:
Interest savings assuming conversion of dilutive
convertible and exchangeable notes, net of tax		48		50		94		92

Numerator for diluted earnings per share:
Net earnings	$	82,143	$	76,709	$	157,476	$	122,171

Denominator:
Denominator for basic earnings per share:
Weighted average shares		160,801		186,667		163,006		186,654

Effect of dilutive securities:
Convertible and exchangeable debt instruments		9,166		6,176		9,464		6,176
Employee stock options		162		7		201		6
Other		516		234		472		240
Dilutive potential common shares		9,844		6,417		10,137		6,422

Denominator for diluted earnings per share:
Adjusted weighted average shares		170,645		193,084		173,143		193,076

Basic earnings per share attributable to Vishay stockholders	$	0.51	$	0.41	$	0.97	$	0.65

Diluted earnings per share attributable to Vishay stockholders	$	0.48	$	0.40	$	0.91	$	0.63

Diluted earnings per share for the periods presented do not reflect the following weighted average potential common shares that would have an antidilutive effect or have unsatisfied performance conditions (in thousands) :

	Fiscal quarters ended		Six fiscal months ended
	July 2, 2011	July 3, 2010	July 2, 2011	July 3, 2010
Convertible and exchangeable notes:
Convertible Senior Debentures, due 2041	4,332	-	2,166	-
Convertible Subordinated Notes, due 2023	-	87	-	87
Weighted average employee stock options	-	2,514	2	2,595
Weighted average warrants	8,824	8,824	8,824	8,824
Weighted average other	101	9	69	47

In periods in which they are dilutive, if the potential common shares related to the exchangeable notes are included in the computation, the related interest savings, net of tax, assuming conversion/exchange is added to the net earnings used to compute earnings per share.

The Company’s convertible debt instruments are only convertible upon the occurrence of certain events. While none of these events has occurred as of July 2, 2011, certain conditions which could trigger conversion have been deemed to be non-substantive, and accordingly, the Company has always assumed the conversion of these instruments in its diluted earnings per share computation during periods in which they are dilutive.

At the direction of its Board of Directors, the Company intends, upon conversion, to repay the principal amounts of the convertible senior debentures, due 2040 and due 2041, in cash and settle any additional amounts in shares of Vishay common stock. Accordingly, the debentures are included in the diluted earnings per share computation using the “treasury stock method” (similar to options and warrants) rather than the “if converted method” otherwise required for convertible debt. Under the “treasury stock method,” Vishay calculates the number of shares issuable under the terms of the notes based on the average market price of Vishay common stock during the period, and that number is included in the total diluted shares figure for the period. If the average market price is less than $13.88, no shares are included in the diluted earnings per share computation for the convertible senior debentures due 2040, and if the average market price is less than $19.02, no shares are included in the diluted earnings per share computation for the convertible senior debentures due 2041.

The Company purchased 99.6% of the outstanding convertible subordinated notes due 2023 pursuant to the option of the holders to require the Company to repurchase their notes on August 1, 2008. The remaining notes, with an aggregate principal amount of $1,870,000, were redeemed at Vishay’s option on August 1, 2010.

The Company waived its rights to settle the principal amount of the convertible subordinated notes, due 2023, in shares of Vishay common stock. Accordingly, the notes were included in the diluted earnings per share computation using the “treasury stock method” (similar to options and warrants) rather than the “if converted method” otherwise required for convertible debt. If the average market price was less than $21.28, no shares were included in the diluted earnings per share computation. The convertible subordinated notes were anti-dilutive for the fiscal quarter ended July 3, 2010 and therefore are not included in the computation of diluted earnings per share.

Fair Value Measurements

6 Months Ended

Jul. 02, 2011

Fair Value Disclosures [Abstract]

Fair Value Measurements

Note 10 – Fair Value Measurements

The fair value measurement accounting guidance establishes a valuation hierarchy of the inputs used to measure fair value. This hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels:

Level 1: Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities.

Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active.

Level 3: Unobservable inputs that reflect the Company’s own assumptions.

An asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. There have been no changes in the classification of any financial instruments within the fair value hierarchy in the periods presented.

The following table provides the financial assets and liabilities carried at fair value measured on a recurring basis (in thousands) :

	Total
	Fair Value			Level 1		Level 2		Level 3
July 2, 2011:
Assets:
Assets held in rabbi trusts	$	28,974		$	17,242	$	11,732	$	-
Available for sale securities	$	6,212			6,212		-		-
	$	35,186		$	23,454	$	11,732	$	-
Liabilities:
Embedded derivative - convertible debentures due 2040	$	(327	)	$	-	$	-	$	(327	)
Embedded derivative - convertible debentures due 2041	$	(213	)		-		-		(213	)
	$	(540	)	$	-	$	-	$	(540	)

December 31, 2010:
Assets:
Assets held in rabbi trusts	$	25,585		$	15,575	$	10,010	$	-
Available for sale securities	$	5,736			5,736		-		-
	$	31,321		$	21,311	$	10,010	$	-
Liability:
Embedded derivative - convertible debentures due 2040	$	(319	)		-		-		(319	)

The Company maintains non-qualified trusts, referred to as “rabbi” trusts, to fund payments under deferred compensation and non-qualified pension plans. Rabbi trust assets consist primarily of marketable securities, classified as available-for-sale and company-owned life insurance assets. The marketable securities held in the rabbi trusts are valued using quoted market prices on the last business day of the period. The company-owned life insurance assets are valued in consultation with the Company’s insurance brokers using the value of underlying assets of the insurance contracts. The fair value measurement of the marketable securities held in the rabbi trust is considered a Level 1 measurement and the measurement of the company-owned life insurance assets is considered a Level 2 measurement within the fair value hierarchy.

The Company holds available for sale investments in debt securities that are intended to fund a portion of its other postretirement benefit obligations outside of the U.S. The investments are valued based on quoted market prices on the last business day of the year. The fair value measurement of the investments is considered a Level 1 measurement within the fair value hierarchy.

The convertible senior debentures, due 2040 and due 2041, issued by the Company on November 9, 2010 and May 13, 2011, respectively, contain embedded derivative features that GAAP requires to be bifurcated and remeasured each reporting period. Each quarter, the change in the fair value of the embedded derivative features, if any, is recorded in the consolidated statements of operations. The Company uses a derivative valuation model to derive the value of the embedded derivative features. Key inputs into this valuation model are the Company’s current stock price, risk-free interest rates, the stock dividend yield, the stock volatility, and the debentures’ credit spread over London Interbank Offered Rate (LIBOR). The first three aforementioned inputs are based on observable market data and are considered Level 2 inputs while the last two aforementioned inputs are unobservable and thus require management’s judgment and are considered Level 3 inputs. The fair value measurement is considered a Level 3 measurement within the fair value hierarchy.

The fair value of the long-term debt, excluding the derivative liability, at July 2, 2011 and December 31, 2010 is approximately $751.7 million and $624.8 million, respectively, compared to its carrying value, excluding the derivative liability, of $421.9 million and $431.4 million, respectively. The Company estimates the fair value of its long-term debt using a combination of quoted market prices for similar financing arrangements and expected future payments discounted at risk-adjusted rates, which are considered Level 2 inputs.

The Company’s financial instruments include cash and cash equivalents, short-term investments, accounts receivable, long-term notes receivable, short-term notes payable, and accounts payable. The carrying amounts for these financial instruments reported in the consolidated balance sheets approximate their fair values.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 133
-Paragraph 44A, 44B
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
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Reference 4: http://www.xbrl.org/2003/role/presentationRef
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+ Details

Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jul. 02, 2011
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Note 11 – Commitments and Contingencies Executive Employment Agreements The Company has employment agreements with certain of its senior executives. Pursuant to Dr. Zandman’s amended and restated employment agreement entered into on May 13, 2009 (as amended, the “2009 Agreement”), his estate is entitled to receive annual payments of $10 million through 2014. Dr. Zandman’s passing has no effect on the timing of these payments. The compensation expense for these payments was recorded upon entering into the 2009 Agreement and is not affected by Dr. Zandman’s passing. The purpose of the 2009 Agreement was to eliminate the right of Dr. Zandman to receive a royalty during the ten years following his termination of employment equal to 5% of gross sales, less returns and allowances, of Vishay products incorporating inventions and any other form of technology created, discovered or developed by him or under his direction. The Company recognized compensation expense of $3,889,000 reported on a separate line in the accompanying consolidated condensed statement of operations in the second fiscal quarter of 2011 for other elements of compensation that accelerated upon the passing of Dr. Zandman. (See also Note 7.)

- Definition

The entire disclosure for commitments and contingencies.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name FASB Interpretation (FIN)
-Number 14
-Paragraph 3
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-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.25)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=6952336&loc=d3e14435-108349

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6398077&loc=d3e12565-110249

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 440
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6394976&loc=d3e25287-109308

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6449706&loc=d3e16207-108621

+ Details

Long-Term Debt (Tables)

6 Months Ended

Jul. 02, 2011

Long-Term Debt (Tables) [Abstract]

Schedule of Long-term Debt Instruments [Table Text Block]

	July 2,		December 31,
	2011		2010
Credit facility	$	180,000	$	240,000
Exchangeable unsecured notes, due 2102		95,042		95,042
Convertible senior debentures, due 2040		97,407		96,640
Convertible senior debentures, due 2041		49,973		-
		422,422		431,682
Less current portion		-		-
	$	422,422	$	431,682

Liability And Equity Component Of Convertible Senior Debenture due 2040 [Table TextBlock]

	July 2,			December 31,
	2011			2010
Liability component:
Principal amount of the debentures	$	275,000		$	275,000
Unamortized discount		(177,920	)		(178,679	)
Embedded derivative		327			319
Carrying value of liability component	$	97,407		$	96,640

Equity component - net carrying value	$	110,094		$	110,094

Liability And Equity Component Of Convertible Senior Debenture due 2041 [Table TextBlock]

	July 2,
	2011
Liability component:
Principal amount of the debentures	$	150,000
Unamortized discount		(100,240	)
Embedded derivative		213
Carrying value of liability component	$	49,973

Equity component - net carrying value	$	61,758

Convertible Debentures Due In 2041 Interest Expense [Table TextBlock]

	Fiscal quarter and six
	fiscal months ended
	July 2, 2011
Contractual coupon interest	$	441
Non-cash amortization of debt discount		102
Non-cash amortization of deferred financing costs		6
Non-cash change in value of derivative liability		2
Total interest expense related to the debentures	$	551

Convertible Debentures Due In 2040 Interest Expense [Table Text Block]

Interest expense related to the debentures is reflected on the consolidated condensed statements of operations as follows (in thousands):

	Fiscal quarter ended			Six fiscal months ended
	July 2, 2011		July 2, 2011
Contractual coupon interest	$	1,547	$	3,094
Non-cash amortization of debt discount		383		759
Non-cash amortization of deferred financing costs		22		44
Non-cash change in value of derivative liability		69		8
Total interest expense related to the debentures	$	2,021	$	3,905

- Definition

Tabular disclosure of long-debt instruments or arrangements, including identification, terms, features, collateral requirements and other information necessary to a fair presentation. These are debt arrangements that originally required repayment more than twelve months after issuance or greater than the normal operating cycle of the entity, if longer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 22
-Article 5

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28551-108399

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=6451184&loc=d3e28541-108399

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21506-112644

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21538-112644

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21521-112644

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6584090&loc=d3e28878-108400

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 470
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6479336&loc=d3e64711-112823

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(e),(f))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

+ Details

Comprehensive Income (Loss) (Tables)

6 Months Ended

Jul. 02, 2011

Comprehensive Income (Loss) (Tables) [Abstract]

Schedule of Comprehensive Income (Loss)

Components of Comprehensive income (loss)

	Fiscal quarters ended						Six fiscal months ended
	July 2, 2011			July 3, 2010			July 2, 2011			July 3, 2010
Net earnings	$	82,496		$	76,965		$	158,103		$	122,604
Other comprehensive income (loss):
Foreign currency translation
adjustment		18,691			(50,012	)		64,419			(79,496	)
Unrealized gain (loss) on available
for sale securities		(851	)		(528	)		(240	)		(133	)
Pension and other postretirement
adjustments		482			(6,768	)		2,416			(4,998	)
Total other comprehensive income (loss)		18,322			(57,308	)		66,595			(84,627	)
Comprehensive income	$	100,818		$	19,657		$	224,698		$	37,977
Less: Comprehensive income
attributable to noncontrolling interests		401			306			721			525
Comprehensive income attributable
to Vishay stockholders	$	100,417		$	19,351		$	223,977		$	37,452

Pensions and Other Postretirement Benefits (Tables)

6 Months Ended

Jul. 02, 2011

Pensions and Other Postretirement Benefits (Tables) [Abstract]

Components of the net periodic pension cost under defined benefit pension plans

	Fiscal quarters ended						Fiscal quarters ended
	July 2, 2011						July 3, 2010
	U.S.			Non-U.S.			U.S.			Non-U.S.
	Plans			Plans			Plans			Plans
Net service cost	$	-		$	849		$	-		$	757
Interest cost		4,081			2,679			3,992			2,686
Expected return on plan assets		(4,888	)		(398	)		(4,648	)		(457	)
Amortization of prior service cost		612			-			158			-
Amortization of losses		2,201			254			2,352			45
Curtailments and settlements		148			-			-			-
Net periodic benefit cost	$	2,154		$	3,384		$	1,854		$	3,031

Six Months

	Six fiscal months ended						Six fiscal months ended
	July 2, 2011						July 3, 2010
	U.S.			Non-U.S.			U.S.			Non-U.S.
	Plans			Plans			Plans			Plans
Net service cost	$	-		$	1,676		$	-		$	1,534
Interest cost		8,149			5,241			8,057			5,563
Expected return on plan assets		(9,541	)		(789	)		(9,049	)		(923	)
Amortization of prior service cost		1,253			-			202			-
Amortization of losses		4,303			503			4,657			87
Curtailments and settlements		148			-			-			-
Net periodic benefit cost	$	4,312		$	6,631		$	3,867		$	6,261

Net periodic benefit cost under other postretirement benefit plans

	Fiscal quarter ended					Fiscal quarter ended
	July 2, 2011					July 3, 2010
	U.S.			Non-U.S.		U.S.			Non-U.S.
	Plans			Plans		Plans			Plans
Service cost	$	20		$	71	$	29		$	61
Interest cost		146			73		196			70
Amortization of prior service (credit) cost		(111	)		-		(110	)		-
Amortization of transition obligation		12			-		18			-
Amortization of gains		(61	)		-		(51	)		-
Net periodic benefit cost	$	6		$	144	$	82		$	131

Six Months

		Six fiscal months ended					Six fiscal months ended
		July 2, 2011					July 3, 2010
	U.S.			Non-U.S.		U.S.			Non-U.S.
	Plans			Plans		Plans			Plans
Service cost	$	39		$	138	$	57		$	128
Interest cost		292			142		391			146
Amortization of prior service (credit) cost		(221	)		-		(220	)		-
Amortization of transition obligation		24			-		37			-
Amortization of gains		(122	)		-		(102	)		-
Net periodic benefit cost	$	12		$	280	$	163		$	274

Stock-Based Compensation (Tables)

6 Months Ended

Jul. 02, 2011

Stock-Based Compensation (Tables) [Abstract]

Summary of recognized stock-based compensation expense

	Fiscal quarters ended					Six fiscal months ended
	July 2, 2011			July 3, 2010		July 2, 2011			July 3, 2010
Stock options	$	(245	)	$	161	$	(125	)	$	354
Restricted stock units		3,573			592		4,639			812
Phantom stock units		-			-		222			175
Total	$	3,328		$	753	$	4,736		$	1,341

Schedule of Unrecognized Compensation Cost, Nonvested Awards [Table Text Block]

Summary of unrecognized compensation cost and the weighted average remaining amortization

			Weighted Average
	Unrecognized		Remaining
	Compensation		Amortization
	Cost		Periods
Stock options	$	208	1.6
Restricted stock units		6,248	1.9
Phantom stock units		-	0.0
Total	$	6,456

Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block]

Option activity under the stock option plans as of April 2, 2011

					Weighted
			Weighted		Average
	Number		Average		Remaining
	of		Exercise		Contractual
	Options		Price		Life
Outstanding:
January 1, 2011	1,254		$	15.04
Granted	-			-
Exercised	(534	)		14.87
Cancelled or forfeited	(40	)		15.18
Outstanding at July 2, 2011	680		$	15.16	1.67

Vested and expected to vest
at July 2, 2011	680		$	15.16	1.67
Exercisable at July 2, 2011	582		$	15.41	1.33

Schedule of Share-based Compensation, Restricted Stock Units Award Activity [Table Text Block]

RSU activity under the 2007 Program as of April 2, 2011

			Weighted Average
	Number		grant date
	of		fair value
	RSUs		per unit
Outstanding:
January 1, 2011	634		$	9.61
Granted	398			16.91
Vested*	(126	)		10.95
Cancelled or forfeited	-			-
Outstanding at July 2, 2011	906		$	12.63

Expected to vest at July 2, 2011	906

Schedule of Share-based Compensation Arrangement by Share-based Payment Award, Performance-Based Units, Vested and Expected to Vest [Table Text Block]

Schedule of RSUs that are expected to vest

Vesting Date		Number of RSUs
January 1, 2013		324
January 1, 2014		215

Schedule Of Share Based Compensation Phantom Stock Units Activity [Table Text Block]

Phantom stock units activity under the 2007 Program as of April 2, 2011

	Number		Grant date
	of		fair value
	Units		per unit
Outstanding:
January 1, 2011	116
Granted	15		$	14.78
Redeemed for common stock	(44	)
Outstanding at July 2, 2011	87

Segment Information (Tables)

6 Months Ended

Jul. 02, 2011

Segment Information (Tables) [Abstract]

Schedule of Segment Reporting Information, by Segment [Table Text Block]

The following table sets forth business segment information (in thousands) :

					Optoelectronic
	MOSFETs		Diodes		Components		Resistors And Inductors		Capacitors		Vishay Precision Group		Total
Fiscal quarter ended July 2, 2011:
Product Sales	$	153,180	$	169,613	$	63,761	$	167,430	$	154,295	$	-	$	708,279
Royalty Revenues		65		-		-		1,494		-		-	$	1,559
Total Revenue	$	153,245	$	169,613	$	63,761	$	168,924	$	154,295	$	-	$	709,838

Gross Margin	$	42,811	$	43,699	$	21,961	$	58,956	$	44,763	$	-	$	212,190

Fiscal quarter ended July 3, 2010:
Product Sales	$	153,207	$	151,026	$	57,657	$	151,941	$	133,346	$	52,914	$	700,091
Royalty Revenues		48		-		27		1,489		-		-	$	1,564
Total Revenue	$	153,255	$	151,026	$	57,684	$	153,430	$	133,346	$	52,914	$	701,655

Gross Margin	$	46,887	$	35,865	$	20,288	$	54,886	$	32,685	$	19,982	$	210,593

Six fiscal months ended July 2, 2011:
Product Sales	$	296,081	$	329,030	$	121,467	$	339,349	$	316,147	$	-	$	1,402,074
Royalty Revenues		162		-		42		2,711		-		-	$	2,915
Total Revenue	$	296,243	$	329,030	$	121,509	$	342,060	$	316,147	$	-	$	1,404,989

Gross Margin	$	82,250	$	82,839	$	41,909	$	120,114	$	99,741	$	-	$	426,853

Six fiscal months ended July 3, 2010:
Product Sales	$	280,831	$	291,272	$	116,053	$	299,398	$	250,677	$	101,089	$	1,339,320
Royalty Revenues		48		-		60		2,687		-		-	$	2,795
Total Revenue	$	280,879	$	291,272	$	116,113	$	302,085	$	250,677	$	101,089	$	1,342,115

Gross Margin	$	73,905	$	63,511	$	39,944	$	106,806	$	56,410	$	37,030	$	377,606

	Fiscal quarters ended						Six fiscal months ended
	July 2, 2011			July 3, 2010			July 2, 2011			July 3, 2010
Operating margin reconciliation:
MOSFETs	$	32,522		$	37,864		$	61,932		$	56,154
Diodes		37,208			30,121			70,008			51,956
Optoelectronic Components		18,330			17,454			34,687			34,115
Resistors And Inductors		51,757			48,497			105,861			93,737
Capacitors		38,584			27,111			86,917			44,873
Vishay Precision Group		-			10,871			-			18,949
Unallocated Selling, General, and Administrative Expenses		(59,007	)		(70,591	)		(117,813	)		(133,332	)
Executive Compensation Charge		(3,889	)		-			(3,889	)		-
Consolidated Operating Income	$	115,505		$	101,327		$	237,703		$	166,452

- Definition

Tabular disclosure of the profit or loss and total assets for each reportable segment. An entity discloses certain information on each reportable segment if the amounts (a) are included in the measure of segment profit or loss reviewed by the chief operating decision maker or (b) are otherwise regularly provided to the chief operating decision maker, even if not included in that measure of segment profit or loss.

+ References + Details

Earnings Per Share (Tables)

6 Months Ended

Jul. 02, 2011

Earnings Per Share (Table) [Abstract]

Schedule of Earnings Per Share, Basic and Diluted [Table Text Block]

Computation of basic and diluted earnings (loss) per share attributable to Vishay stockholders

	Fiscal quarters ended				Six fiscal months ended
	July 2, 2011		July 3, 2010		July 2, 2011		July 3, 2010
Numerator:
Numerator for basic earnings per share:
Net earnings	$	82,095	$	76,659	$	157,382	$	122,079

Adjustment to the numerator for continuing
operations and net earnings:
Interest savings assuming conversion of dilutive
convertible and exchangeable notes, net of tax		48		50		94		92

Numerator for diluted earnings per share:
Net earnings	$	82,143	$	76,709	$	157,476	$	122,171

Denominator:
Denominator for basic earnings per share:
Weighted average shares		160,801		186,667		163,006		186,654

Effect of dilutive securities:
Convertible and exchangeable debt instruments		9,166		6,176		9,464		6,176
Employee stock options		162		7		201		6
Other		516		234		472		240
Dilutive potential common shares		9,844		6,417		10,137		6,422

Denominator for diluted earnings per share:
Adjusted weighted average shares		170,645		193,084		173,143		193,076

Basic earnings per share attributable to Vishay stockholders	$	0.51	$	0.41	$	0.97	$	0.65

Diluted earnings per share attributable to Vishay stockholders	$	0.48	$	0.40	$	0.91	$	0.63

Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block]

Weighted average potential common shares that would have an antidilutive effect or have unsatisfied performance conditions

	Fiscal quarters ended		Six fiscal months ended
	July 2, 2011	July 3, 2010	July 2, 2011	July 3, 2010
Convertible and exchangeable notes:
Convertible Senior Debentures, due 2041	4,332	-	2,166	-
Convertible Subordinated Notes, due 2023	-	87	-	87
Weighted average employee stock options	-	2,514	2	2,595
Weighted average warrants	8,824	8,824	8,824	8,824
Weighted average other	101	9	69	47

Fair Value Measurements (Tables)

6 Months Ended

Jul. 02, 2011

Fair Value Measurements (Tables) [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

Fair value of assets and liabilities.

	Total
	Fair Value			Level 1		Level 2		Level 3
July 2, 2011:
Assets:
Assets held in rabbi trusts	$	28,974		$	17,242	$	11,732	$	-
Available for sale securities	$	6,212			6,212		-		-
	$	35,186		$	23,454	$	11,732	$	-
Liabilities:
Embedded derivative - convertible debentures due 2040	$	(327	)	$	-	$	-	$	(327	)
Embedded derivative - convertible debentures due 2041	$	(213	)		-		-		(213	)
	$	(540	)	$	-	$	-	$	(540	)

December 31, 2010:
Assets:
Assets held in rabbi trusts	$	25,585		$	15,575	$	10,010	$	-
Available for sale securities	$	5,736			5,736		-		-
	$	31,321		$	21,311	$	10,010	$	-
Liability:
Embedded derivative - convertible debentures due 2040	$	(319	)		-		-		(319	)

Basis of Presentation (Details Textuals)	6 Months Ended
Basis of Presentation (Details Textuals)	Jul. 02, 2011
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Description	In January 2010, the Financial Accounting Standards Board (FASB) updated the accounting guidance related to fair value measurements disclosures. The updated guidance (i) requires separate disclosure of significant transfers in and out of Levels 1 and 2 fair value measurements, (ii) requires disclosure of Level 3 fair value measurements activity on a gross basis, (iii) clarifies existing disaggregation requirements, (iv) and clarifies existing input and valuation technique disclosure requirements. The updated guidance was effective for the Company for interim and annual periods beginning after January 1, 2010, except for the Level 3 fair value measurement disclosure requirements, which are effective for fiscal years beginning after January 1, 2011. Vishay adopted the then-effective aspects of the guidance on January 1, 2010 and adopted the remaining guidance on January 1, 2011. The adoption of the guidance had no effect on the Company's financial position, results of operations, or liquidity. In May 2011, the FASB issued Accounting Standards Update (ASU) No. 2011-4, Fair Value Measurement (Topic 820), Amendments to Achieve Common Fair Value Measurement and Disclosure Requirements in GAAP and IFRS. The ASU generally aligns the principles for fair value measurements and the related disclosure requirements under GAAP and IFRS. The updated guidance clarifies existing fair value measurement and disclosure requirements and requires additional disclosure requirements. The ASU is effective for the Company for interim and annual periods beginning after January 1, 2012. The adoption of the ASU is not expected to have any effect on the Company's financial position, results of operations, or liquidity. In June 2011, the FASB issued ASU No. 2011-5, Comprehensive Income (Topic 220), Presentation of Comprehensive Income. The ASU requires that all non-owner changes in stockholders' equity be presented either in a single continuous statement of comprehensive income or in two separate, but consecutive statements. The ASU is effective for the Company for interim and annual periods beginning after January 1, 2012. The adoption of the ASU is not expected to have any effect on the Company's financial position, results of operations, or liquidity.
Fiscal Period, Policy [Policy Text Block]	The Company reports interim financial information for 13-week periods beginning on a Sunday and ending on a Saturday, except for the first fiscal quarter, which always begins on January 1, and the fourth fiscal quarter, which always ends on December 31. The four fiscal quarters in 2011 end on April 2, 2011, July 2, 2011, October 1, 2011, and December 31, 2011. The four fiscal quarters in 2010 ended on April 3, 2010, July 3, 2010, October 2, 2010, and December 31, 2010, respectively.

- Definition

Disclosure of accounting policy for determining an entity's fiscal year or other fiscal period. This disclosure may include identification of the fiscal period end-date, the length of the fiscal period, any reporting period lag between the entity and its subsidiaries, or equity investees. If a reporting lag exists, the closing date of the entity having a different period end is generally noted, along with an explanation of the necessity for using different closing dates. Any intervening events that materially affect the entity's financial position or results of operations are generally also disclosed.

+ References + Details

- Definition

Disclosure related to a new accounting pronouncement or a change in accounting principle, including the nature and reason for the change and the effect of the change on prior periods and the current period.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 154
-Paragraph 2, 17, 18
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 28
-Paragraph 23, 24
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 01
-Paragraph b
-Subparagraph 6
-Article 10

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 11
-Section M

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22499-107794

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22580-107794

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Indirect Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6515603

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6503790

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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=6507316

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Direct Effects of a Change in Accounting Principle
-URI http://asc.fasb.org/extlink&oid=6510796

Reference 11: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
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-Paragraph 5
-Subparagraph (SAB TOPIC 11.M)
-URI http://asc.fasb.org/extlink&oid=6369664&loc=d3e31137-122693

Reference 12: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.10-01.(b)(6))
-URI http://asc.fasb.org/extlink&oid=6958853&loc=d3e46468-122699

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-Name Accounting Standards Codification
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-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6801783&loc=d3e22583-107794

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Retrospective Application
-URI http://asc.fasb.org/extlink&oid=6523989

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
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-Paragraph 12
-URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e725-108305

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-Name Accounting Standards Codification
-Topic 270
-SubTopic 10
-Section 45
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6372559&loc=d3e765-108305

+ Details

Acquisition and Divestiture Activities (Details Textuals) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2010	Dec. 31, 2008
Exchange Ratio Under Spin-Off	<div><div><div>1 share of VPG common stock for every 14 shares of Vishay common stock </div> </div> </div>
Term loan issued in connection with business acquisition		$ 15
Common Class B [Member]
Exchange Ratio Under Spin-Off	<div><div><div>1 share of VPG Class B common stock for every 14 shares of Vishay Class B common stock </div> </div> </div>

Income Taxes (Details Textuals) - USD ($) $ in Millions	6 Months Ended	12 Months Ended
Income Taxes (Details Textuals) - USD ($) $ in Millions	Jul. 02, 2011	Dec. 31, 2010
Company's Deferred Tax Assets In Israel	$ 10.0
Increase In Liabilities For Unrecongnized Tax Benefits	$ 4.7
Effective Income Tax Rate Description		<div><div><div style="text-align:justify;" ><font style="font-family:times new roman;" >The provision for income taxes consists of provisions for federal, state, and foreign income taxes. The effective tax rates for the periods ended July 2, 2011 and July 3, 2010 reflect the Company’s expected tax rate on reported income from continuing operations before income tax and tax adjustments. The Company operates in a global environment with significant operations in various locations outside the United States. Accordingly, the consolidated income tax rate is a composite rate reflecting the Company’s earnings and the applicable tax rates in the various locations where the Company operates. </font> </div> </div> </div>

- Definition

The component of total income tax expense for the period comprised of the increase (decrease) in the entity's net foreign deferred tax assets and liabilities attributable to continuing operations as determined by applying the provisions of applicable enacted tax laws of countries other than the country of domicile.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 08
-Paragraph h
-Article 4

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 45
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08.(h))
-URI http://asc.fasb.org/extlink&oid=6881521&loc=d3e23780-122690

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.7)
-URI http://asc.fasb.org/extlink&oid=6889476&loc=d3e330036-122817

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Deferred Tax Expense (or Benefit)
-URI http://asc.fasb.org/extlink&oid=6510177

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 9
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32639-109319

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 109
-Paragraph 289
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Staff Accounting Bulletin (SAB)
-Number Topic 6
-Section I
-Subsection 7

+ Details

Long-Term Debt (Details) - USD ($) $ in Thousands	Jul. 02, 2011	Dec. 31, 2010
Credit facility	$ 180,000	$ 240,000
Exchangeable unsecured notes, due 2102	95,042	95,042
Less current portion	0	0
Long-term debt less current portion	422,422	431,682
Convertible Senior Debentures Due In 2040
Convertible senior debentures	97,407	96,640
Convertible Senior Debentures Due In 2041
Convertible senior debentures	$ 49,973	$ 0

- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

+ References + Details

Long-Term Debt (Details 1) - USD ($) $ in Thousands	Jul. 02, 2011	Dec. 31, 2010
Embedded derivative	$ (540)	$ (319)
Convertible Senior Debentures Due In 2040
Principal amount of the debentures	275,000	275,000
Unamortized discount	(177,920)	(178,679)
Embedded derivative	327	319
Carrying value of liability component	97,407	96,640
Equity component - net carrying value	110,094	110,094
Convertible Senior Debentures Due In 2041
Principal amount of the debentures	150,000
Unamortized discount	(100,240)
Embedded derivative	213
Carrying value of liability component	49,973	$ 0
Equity component - net carrying value	$ 61,758

Long-Term Debt (Details 2) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Long-Term Debt (Details 2) - USD ($) $ in Thousands	Jul. 02, 2011	Jul. 02, 2011	Jul. 03, 2010
Accretion of interest on convertible debentures		$ 861	$ 0
Convertible Senior Debentures 2041
Contractual coupon interest	$ 441	441
Accretion of interest on convertible debentures	102	102
Non-cash amortization of deferred financing costs	6	6
Non-cash change in value of derivative liability	2	2
Total interest expense related to the debentures	551	551
Convertible Senior Debentures Due In 2040
Contractual coupon interest	1,547	3,094
Accretion of interest on convertible debentures	383	759
Non-cash amortization of deferred financing costs	22	44
Non-cash change in value of derivative liability	69	8
Total interest expense related to the debentures	$ 2,021	$ 3,905

Long-Term Debt (Details 3) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Long-Term Debt (Details 3) - USD ($) $ in Thousands	Jul. 02, 2011	Jul. 02, 2011	Jul. 03, 2010
Accretion of interest on convertible debentures		$ 861	$ 0
Convertible Senior Debentures Due In 2040
Contractual coupon interest	$ 1,547	3,094
Accretion of interest on convertible debentures	383	759
Non-cash amortization of deferred financing costs	22	44
Non-cash change in value of derivative liability	69	8
Total interest expense related to the debentures	$ 2,021	$ 3,905

Long-Term Debt (Details Textuals) - USD ($)	6 Months Ended	12 Months Ended
Long-Term Debt (Details Textuals) - USD ($)	Jul. 02, 2011	Dec. 31, 2010
Debt Instrument [Line Items]
Debt Instrument Percentage Of Conversion Price	130.00%
Debt Instrument, Conversion Price Amount	$ 24.73
Debt Instrument, Percentage of sale price of common stock	98.00%
Debt Instrument, Initial conversion shares of common stock	52.5659
Debt Instrument, Principal Amount of Debentures	$ 1,000
Debt Instrument, Initial conversion price, per share	$ 19.02
Debt Instrument, Percentage of initial conversion price premium	12.50%
Debt Instrument, conversion price, per share	$ 16.90
Stock repurchase, (in shares)	8,620,689
Convertible Senior Debentures 2041
Debt Instrument [Line Items]
Convertible senior debentures issuance date	13-May-11
Proceeds from issuance of covertible senior debentures	$ 150,000,000
Stated rate of interest on convertible senior debentures	2.25%
Convertible senior debentures, Maturity date	2041
Effective rate of interest on convertible senior debentures	8.375%
Circumstances of Debenture 2041 conversion	<div><div><font style="font-family:times new roman;" >Prior to February 15, 2041, the holders may only convert their debentures under the following circumstances: (1) during any fiscal quarter commencing after the fiscal quarter ending October 1, 2011 if the sale price of Vishay common stock reaches 130% of the conversion price ($24.73) for a specified period; (2) the trading price of the debentures falls below 98% of the product of the sale price of Vishay’s common stock and the conversion rate for a specified period; (3) Vishay calls any or all of the debentures for redemption, at any time prior to the close of business on the third scheduled trading day immediately preceding the redemption date; or (4) upon the occurrence of specified corporate events. None of these conditions had occurred as of July 2, 2011. </font> </div> </div>
Treasury Stock, Value, Acquired, Cost Method	$ 150,000,000
Convertible Senior Debentures 2040
Debt Instrument [Line Items]
Convertible senior debentures issuance date		9-Nov-10
Proceeds from issuance of covertible senior debentures		$ 275,000,000
Stated rate of interest on convertible senior debentures	2.25%
Convertible senior debentures, Maturity date		2040
Effective rate of interest on convertible senior debentures		8.00%

Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Net earnings	$ 82,496	$ 76,965	$ 158,103	$ 122,604
Other comprehensive income (loss):
Foreign currency translation adjustment	18,691	(50,012)	64,419	(79,496)
Unrealized gain (loss) on available for sale securities	(851)	(528)	(240)	(133)
Pension and other postretirement adjustments	482	(6,768)	2,416	(4,998)
Total other comprehensive income (loss)	18,322	(57,308)	66,595	(84,627)
Comprehensive income	100,818	19,657	224,698	37,977
Less: Comprehensive income attributable to noncontrolling interests	401	306	721	525
Comprehensive income attributable to Vishay stockholders	$ 100,417	$ 19,351	$ 223,977	$ 37,452

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the reporting entity. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, but excludes any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 8, 9, 10, 11, 12, 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A5
-Appendix A

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e557-108580

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=6518256

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e540-108580

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6508144

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to noncontrolling interests, if any. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

The change in equity [net assets] of a business enterprise during a period from transactions and other events and circumstances from non-owner sources which are attributable to the economic entity, including both controlling (parent) and noncontrolling interests. It includes all changes in equity during a period except those resulting from investments by owners and distributions to owners, including any and all transactions which are directly or indirectly attributable to that ownership interest in subsidiary equity which is not attributable to the parent.

+ References + Details

- Definition

Adjustment that results from the process of translating subsidiary financial statements and foreign equity investments into the reporting currency of the reporting entity, net of tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 24
-Subparagraph b
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 14, 17, 19, 26
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 52
-Paragraph 13, 20, 31
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-Subparagraph (b),(c)
-URI http://asc.fasb.org/extlink&oid=6915805&loc=d3e32211-110900

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 55
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6920433&loc=d3e998-108581

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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

This element represents Other Comprehensive Income or Loss, Net of Tax, for the period. Includes deferred gains or losses on qualifying hedges, unrealized holding gains or losses on available-for-sale securities, minimum pension liability, and cumulative translation adjustment. While for technical reasons this element has no balance attribute, the default assumption is a credit balance consistent with its label.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Principles Board Opinion (APB)
-Number 12
-Paragraph 10
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 02
-Paragraph 31
-Article 5

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Article 3

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 22, 23, 24, 25
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21463-112644

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-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
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-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e599-108580

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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

Appreciation or loss in value (before reclassification adjustment) of the total of unsold securities during the period being reported on, net of tax. Reclassification adjustments include: (1) the unrealized holding gain (loss), net of tax, at the date of the transfer for a debt security from the held-to-maturity category transferred into the available-for-sale category. Also includes the unrealized gain (loss) at the date of transfer for a debt security from the available-for-sale category transferred into the held-to-maturity category; (2) the unrealized gains (losses) realized upon the sale of securities, after tax; and (3) the unrealized gains (losses) realized upon the write-down of securities, after tax.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 115
-Paragraph 13
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 24
-Subparagraph b
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 17, 22
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
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-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e637-108580

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
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-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e653-108580

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-Publisher FASB
-Name Accounting Standards Codification
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-Paragraph 2
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=6920433&loc=d3e998-108581

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-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(3)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 29
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

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-Subparagraph a
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Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A1, A4, A5
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-Name Accounting Research Bulletin (ARB)
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-Paragraph 5
-Subparagraph b
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-Name Accounting Standards Codification
-Topic 810
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-Section 55
-Paragraph 4K
-URI http://asc.fasb.org/extlink&oid=6922042&loc=SL4591552-111686

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=6921628&loc=SL4569616-111683

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4J
-URI http://asc.fasb.org/extlink&oid=6922042&loc=SL4591551-111686

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (a),(c)
-URI http://asc.fasb.org/extlink&oid=6921930&loc=SL4573702-111684

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph c(1)
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Comprehensive Income (Loss) (Details Textuals)	6 Months Ended
Comprehensive Income (Loss) (Details Textuals)	Jul. 02, 2011
Discussion On Inclusion Of Entitys Proportionate Share Of Other Comprehensive Income (Loss) Of Equity Method Investment On Other Comprehensive Income (Loss)	<div><div><font style="font-family:times new roman;" >Other comprehensive income (loss) includes Vishay’s proportionate share of other comprehensive income (loss) of nonconsolidated subsidiaries accounted for under the equity method. </font> </div> </div>

Pensions and Other Postretirement Benefits (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Net service cost	$ 0	$ 0	$ 0	$ 0
Interest cost	4,081	3,992	8,149	8,057
Expected return on plan assets	(4,888)	(4,648)	(9,541)	(9,049)
Amortization of prior service cost	612	158	1,253	202
Amortization of losses	2,201	2,352	4,303	4,657
Curtailments and settlements	148	0	148	0
Net periodic benefit cost	2,154	1,854	4,312	3,867
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Net service cost	849	757	1,676	1,534
Interest cost	2,679	2,686	5,241	5,563
Expected return on plan assets	(398)	(457)	(789)	(923)
Amortization of prior service cost	0	0	0	0
Amortization of losses	254	45	503	87
Curtailments and settlements	0	0	0	0
Net periodic benefit cost	$ 3,384	$ 3,031	$ 6,631	$ 6,261

Pensions and Other Postretirement Benefits (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
United States Postretirement Benefit Plans of US Entity, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	$ 20	$ 29	$ 39	$ 57
Interest cost	146	196	292	391
Amortization of prior service (credit) cost	(111)	(110)	(221)	(220)
Amortization of transition obligation	12	18	24	37
Amortization of gains	(61)	51	(122)	(102)
Net periodic benefit cost	6	82	12	163
Foreign Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Service cost	71	61	138	128
Interest cost	73	70	142	146
Amortization of prior service (credit) cost	0	0	0	0
Amortization of transition obligation	0	0	0	0
Amortization of gains	0	0	0	0
Net periodic benefit cost	144	131	280	274
U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	0	0	0	0
Interest cost	4,081	3,992	8,149	8,057
Expected return on plan assets	(4,888)	(4,648)	(9,541)	(9,049)
Amortization of prior service (credit) cost	612	158	1,253	202
Amortization of gains	2,201	2,352	4,303	4,657
Curtailments and settlements	148	0	148	0
Net periodic benefit cost	2,154	1,854	4,312	3,867
Non-U.S. Plans
Defined Benefit Plan Disclosure [Line Items]
Service cost	849	757	1,676	1,534
Interest cost	2,679	2,686	5,241	5,563
Expected return on plan assets	(398)	(457)	(789)	(923)
Amortization of prior service (credit) cost	0	0	0	0
Amortization of gains	254	45	503	87
Curtailments and settlements	0	0	0	0
Net periodic benefit cost	$ 3,384	$ 3,031	$ 6,631	$ 6,261

Stock-Based Compensation (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Stock-Based Compensation (Details) - USD ($) $ in Thousands	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 3,328	$ 753	$ 4,736	$ 1,341
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	(245)	161	(125)	354
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	3,573	592	4,639	812
Phantom Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation expense recognized	$ 0	$ 0	$ 222	$ 175

- Definition

Equity-based compensation cost during the period with respect to the award, which will be recognized in income (as well as the total recognized tax benefit) or capitalized as part of the cost of an asset.

+ References + Details

Stock-Based Compensation (Details 1) $ in Thousands	6 Months Ended
Stock-Based Compensation (Details 1) $ in Thousands	Jul. 02, 2011 USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$ 6,456
Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$ 208
Weighted Average Remaining Amortization Periods	1.6
Restricted Stock Units (RSUs) [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$ 6,248
Weighted Average Remaining Amortization Periods	1.9
Phantom Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Unrecognized Compensation Cost	$ 0
Weighted Average Remaining Amortization Periods	0

Stock-Based Compensation (Details 2) shares in Thousands	6 Months Ended
Stock-Based Compensation (Details 2) shares in Thousands	Jul. 02, 2011 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of options, outstanding \| shares	1,254
Number of options, granted \| shares	0
Number of options, exercised \| shares	(534)
Number of options, cancelled or forfeited \| shares	(40)
Number of options, outstanding \| shares	680
Number of options, vested and expected to vest at July 2, 2011 \| shares	680
Number of options, exercisable at July 2, 2011 \| shares	582
Weighted average exercise price of options, Outstanding \| $ / shares	$ 15.04
Weighted average exercise price of options, granted \| $ / shares	0
Weighted average exercise price of options, exercised \| $ / shares	14.87
Weighted average exercise price of options, cancelled or forfeited \| $ / shares	15.18
Weighted average exercise price of options, outstanding \| $ / shares	15.16
Weighted average exercise price of options, vested and expected to vest \| $ / shares	15.16
Weighted average exercise price of options, exercisable at July 2, 2011 \| $ / shares	$ 15.41
Remaining contractual term of options, outstanding at July 2, 2011	1.67
Remaining contractual term of options, vested and expected to vest at July 2, 2011	1.67
Remaining contractual term of options, exercisable at July 2, 2011	1.33

Stock-Based Compensation (Details 3) - Restricted Stock Units (RSUs) [Member] shares in Thousands	6 Months Ended
	Jul. 02, 2011 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs, Outstanding Balance	634
Number of RSUs, granted	398
Number of RSUs, vested	(126)
Number of RSUs, cancelled or forfeited	0
Number of RSUs, Outstanding Balance	906
Expected to vest at April 2, 2011	906
Weighted average grant date fair value per unit of RSUs, Outstanding \| $ / shares	$ 9.61
Weighted average grant date fair value per unit of RSUs, granted \| $ / shares	16.91
Weighted average grant date fair value per unit of RSUs, vested \| $ / shares	10.95
Weighted average grant date fair value per unit of RSUs, cancelled or forfeited \| $ / shares	0
Weighted average grant date fair value per unit of RSUs, Outstanding \| $ / shares	$ 12.63

Stock-Based Compensation (Details 4) - Performance Vested Restricted Stock Units [Member] shares in Thousands	Jul. 02, 2011 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of RSUs with performance-based vesting criteria expected to vest	324
Number of RSUs with performance-based vesting criteria expected to vest	215

Stock-Based Compensation (Details 5) shares in Thousands	6 Months Ended
Stock-Based Compensation (Details 5) shares in Thousands	Jul. 02, 2011 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
January 1, 2011	116
Granted	15
Redeemed for common stock	(44)
Outstanding at April 2, 2011	87
Granted \| $ / shares	$ 14.78

Stock-Based Compensation (Details Textuals) $ / shares in Units, $ in Thousands	6 Months Ended
	Jul. 02, 2011 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares granted under restricted stock, unrestricted stock, RSUs and stock options to officers, employees and employee directors	3,000,000
Methods used to estimate fair value of Stock options and Awards	Black-Scholes option-pricing model
Expiration date of the 2007 Stock Incentive Plan	May 22, 2017
Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested During Period	155,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Non-vested, Outstanding	98,000
Share-based Compensation Arrangement by Share-based Payment Award, Options, Non-vested, Weighted Average Grant Date Fair Value	8.5
Stock price per share \| $ / shares	$ 15.7
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value \| $	$ 549,000
Stock options exercised (Shares)	(534,000)
The total intrinsic valueintrinsic value under share based compansation scheme \| $	$ 1,628,000
Annual Grant Of Equity Instruments Other Than Options To Executives	5,000
Share-based Compensation Arrangement by Share-based Payment Award, Method of Measuring Cost of Award	The amount of compensation cost related to stock-based payment transactions is measured based on the grant-date fair value of the equity instruments issued. The fair value of each option award is estimated on the date of grant using the Black-Scholes option-pricing model. The Company determines compensation cost for restricted stock units ("RSUs"), phantom stock units, and restricted stock based on the grant-date fair value of the underlying common stock. Compensation cost is recognized over the period that an officer, employee, or non-employee director provides service in exchange for the award.
Recognition of Compensation Cost for RSU's Expected To Vest	The Company recognizes compensation cost for RSUs that are expected to vest. The Company expects all performance-based vesting criteria to be achieved.
Rsus Vested and Contributed To Estate Of Executive Chairman Upon His Death	98,375
Rsus Vested and Contributed To Estate Of Executive Chairman Upon Companys Achievement Of Performance-Based Criteria	202,330
Accelerated Stock Options Vested To Executive Chairman	77,334
Phantom Stock Units [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Maximum number of shares granted under restricted stock, unrestricted stock, RSUs and stock options to officers, employees and employee directors	300,000

Segment Information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Segment Information (Details) - USD ($) $ in Thousands	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Segment Reporting Information [Line Items]
Product Sales	$ 708,279	$ 700,091	$ 1,402,074	$ 1,339,320
Royalty Revenues	1,559	1,564	2,915	2,795
Total Revenue	709,838	701,655	1,404,989	1,342,115
Gross Margin	212,190	210,593	426,853	377,606
MOSFETS Segment
Segment Reporting Information [Line Items]
Product Sales	153,180	153,207	296,081	280,831
Royalty Revenues	65	48	162	48
Total Revenue	153,245	153,255	296,243	280,879
Gross Margin	42,811	46,887	82,250	73,905
Diodes Segment
Segment Reporting Information [Line Items]
Product Sales	169,613	151,026	329,030	291,272
Royalty Revenues	0	0	0	0
Total Revenue	169,613	151,026	329,030	291,272
Gross Margin	43,699	35,865	82,839	63,511
Optoelectronic Components Segments
Segment Reporting Information [Line Items]
Product Sales	63,761	57,657	121,467	116,053
Royalty Revenues	0	27	42	60
Total Revenue	63,761	57,684	121,509	116,113
Gross Margin	21,961	20,288	41,909	39,944
Resistors And Inductors Segment
Segment Reporting Information [Line Items]
Product Sales	167,430	151,941	339,349	299,398
Royalty Revenues	1,494	1,489	2,711	2,687
Total Revenue	168,924	153,430	342,060	302,085
Gross Margin	58,956	54,886	120,114	106,806
Capacitors Segment
Segment Reporting Information [Line Items]
Product Sales	154,295	133,346	316,147	250,677
Royalty Revenues	0	0	0	0
Total Revenue	154,295	133,346	316,147	250,677
Gross Margin	44,763	32,685	99,741	56,410
Vishay Precision Group Segment
Segment Reporting Information [Line Items]
Product Sales	0	52,914	0	101,089
Royalty Revenues	0	0	0	0
Total Revenue	0	52,914	0	101,089
Gross Margin	$ 0	$ 19,982	$ 0	$ 37,030

Segment Information (Details 1) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Segment Information (Details 1) - USD ($) $ in Thousands	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Segment Reporting Information [Line Items]
Operating Income	$ 115,505	$ 101,327	$ 237,703	$ 166,452
MOSFETS Segment
Segment Reporting Information [Line Items]
Operating Income	32,522	37,864	61,932	56,154
Diodes Segment
Segment Reporting Information [Line Items]
Operating Income	37,208	30,121	70,008	51,956
Optoelectronic Components Segments
Segment Reporting Information [Line Items]
Operating Income	18,330	17,454	34,687	34,115
Resistors And Inductors Segment
Segment Reporting Information [Line Items]
Operating Income	51,757	48,497	105,861	93,737
Capacitors Segment
Segment Reporting Information [Line Items]
Operating Income	38,584	27,111	86,917	44,873
Vishay Precision Group Segment
Segment Reporting Information [Line Items]
Operating Income	0	10,871	0	18,949
Executive Compensation Charge [Member]
Segment Reporting Information [Line Items]
Operating Income	(3,889)	0	(3,889)	0
Unallocated Amount to Segment
Segment Reporting Information [Line Items]
Operating Income	$ (59,007)	$ (70,591)	$ (117,813)	$ (133,332)

Segment Information (Details Textuals) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Segment Reporting Information [Line Items]
Income before taxes	$ 110,853	$ 104,883	$ 228,490	$ 167,618
Net earnings attributable to Vishay stockholders	$ 82,095	$ 76,659	$ 157,382	$ 122,079
Diluted earnings per share attributable to Vishay stockholders	$ 0.48	$ 0.40	$ 0.91	$ 0.63
Segment Reporting Information, Description of Products and Services				In preparation for the spin-off of VPG, which was completed on July 6, 2010, the Company realigned its reportable business segments structure in the second fiscal quarter of 2010 to be consistent with changes made to its management reporting. The changes made to management reporting included separating the former Semiconductors reporting segment into MOSFETs, Diodes, and Optoelectronic Components and separating the former Passive Components reporting segment into Resistors & Inductors, Capacitors, and Vishay Precision Group. The changes were necessary due to the former Passive Components segment no longer being comparable after the completion of the spin-off of VPG, the need for discrete information regarding VPG, and the increased interest of management and outside investors in more discrete financial information. Effective beginning in the second fiscal quarter of 2010, the chief operating decision maker began making strategic and operating decisions with regards to assessing performance and allocating resources based on this new segment structure. Following the completion of the spin-off in the third fiscal quarter of 2010, the Company has five reporting segments.
Segment Reporting, Change in Measurement Methods				The Company evaluates business segment performance on operating income, exclusive of certain items ("segment operating income"). Beginning in the second fiscal quarter of 2010, the Company changed its definition of segment operating income to exclude such costs as global operations, sales and marketing, information systems, finance and administration groups. These costs are managed by executives that report to the chief operating decision maker and were formerly included in segment operating income. Only dedicated, direct selling, general, and administrative expenses of the segments are included in the calculation of segment operating income. Additionally, management has always evaluated segment performance excluding items such as restructuring and severance costs, asset write-downs, goodwill and indefinite-lived intangible asset impairments, inventory write-downs, gains or losses on purchase commitments, and other items. Management believes that evaluating segment performance excluding such items is meaningful because it provides insight with respect to intrinsic operating results of the Company. These items represent reconciling items between segment operating income and consolidated operating income. Business segment assets are the owned or allocated assets used by each business.
Discussion on inclusion of VPG's Share in Results of Operations and Cash Flows prior to spin-off				Until July 6, 2010, VPG was part of Vishay and its results of operations and cash flows are included in the amounts reported in these consolidated condensed financial statements for the six fiscal months ended July 3, 2010. Excluding the non-recurring costs of the spin-off incurred by Vishay, VPG contributed $9,716,000 of income before taxes, $5,811,000 of net earnings attributable to Vishay stockholders, and $0.03 per diluted share attributable to Vishay stockholders to Vishay's results for the six fiscal months ended July 3, 2010.
Vishay Precision Group Segment
Segment Reporting Information [Line Items]
Income before taxes				$ 9,716,000
Net earnings attributable to Vishay stockholders				$ 5,811,000
Diluted earnings per share attributable to Vishay stockholders				$ 0.03

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References + Details

- Definition

The portion of profit or loss for the period, net of income taxes, which is attributable to the parent.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 87-21
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph a
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 130
-Paragraph 10, 15
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 95
-Paragraph 28, 29, 30
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Article 5
-Section 03
-Paragraph 19

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 04
-Paragraph 20
-Article 9

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=6943989&loc=d3e3602-108585

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Net Income
-URI http://asc.fasb.org/extlink&oid=6518256

Reference 9: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Other Comprehensive Income
-URI http://asc.fasb.org/extlink&oid=6519514

Reference 10: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 11: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 225
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03.18)
-URI http://asc.fasb.org/extlink&oid=6880815&loc=d3e20235-122688

Reference 12: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.19)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 13: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=6920043&loc=d3e565-108580

Reference 14: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 225
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04.22)
-URI http://asc.fasb.org/extlink&oid=6879464&loc=d3e573970-122913

Reference 15: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph 38
-Subparagraph d
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 16: http://www.xbrl.org/2003/role/presentationRef
-Publisher AICPA
-Name Accounting Research Bulletin (ARB)
-Number 51
-Paragraph A7
-Appendix A

+ Details

Earnings Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Numerator for basic earnings per share:
Net earnings	$ 82,095	$ 76,659	$ 157,382	$ 122,079
Adjustment to the numerator for continuing operations and net earnings:
Interest savings assuming conversion of dilutive convertible and exchangeable notes, net of tax	48	50	94	92
Numerator for diluted earnings per share:
Net earnings	$ 82,143	$ 76,709	$ 157,476	$ 122,171
Denominator for basic earnings per share:
Weighted average shares outstanding - basic (in shares)	160,801	186,667	163,006	186,654
Effect of dilutive securities:
Convertible and exchangeable debt instruments	9,166	6,176	9,464	6,176
Employee stock options	162	7	201	6
Other	516	234	472	240
Dilutive potential common shares	9,844	6,417	10,137	6,422
Denominator for diluted earnings per share:
Weighted average shares outstanding - diluted (in shares)	170,645	193,084	173,143	193,076
Basic earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.51	$ 0.41	$ 0.97	$ 0.65
Diluted earnings per share attributable to Vishay stockholders (in dollars per share)	$ 0.48	$ 0.40	$ 0.91	$ 0.63

Earnings Per Share (Details 1) - shares shares in Thousands	3 Months Ended		6 Months Ended
Earnings Per Share (Details 1) - shares shares in Thousands	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Convertible Subordinated Notes, due 2023
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount	0	87	0	87
Stock Options [Member]
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount	0	2,514	2	2,595
Weighted average warrants
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount	8,824	8,824	8,824	8,824
Weighted average other
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount	101	9	69	47
Convertible Senior Debentures 2041
Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items]
Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount	4,332	0	2,166	0

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 13, 14
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 171
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Statement of Financial Accounting Standard (FAS)
-Number 128
-Paragraph 40
-Subparagraph c
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

Reference 4: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257

Reference 5: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Diluted Earnings Per Share
-URI http://asc.fasb.org/extlink&oid=6510752

Reference 6: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Contingent Stock Agreement
-URI http://asc.fasb.org/extlink&oid=6508534

Reference 7: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Antidilution
-URI http://asc.fasb.org/extlink&oid=6505113

Reference 8: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Emerging Issues Task Force (EITF)
-Number 07-4
-Paragraph 4
-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.

+ Details

Earnings Per Share (Details Textuals) - USD ($) $ / shares in Units, $ in Thousands	6 Months Ended		12 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Dec. 31, 2008
Minimum market price of common stock for inclusion of shares issuable upon conversion of subordinated notes for calculation of diluted earnings per share		$ 21.28
Method adopted in the diluted earnigs per share computation		Treasury Stock Method
Discussion on convertible debt included in computation of Earnings per share diluted		<div><font style="font-family:times new roman;" >The Company’s convertible debt instruments are only convertible upon the occurrence of certain events. While none of these events has occurred as of July 2, 2011, certain conditions which could trigger conversion have been deemed to be non-substantive, and accordingly, the Company has always assumed the conversion of these instruments in its diluted earnings per share computation during periods in which they are dilutive. </font> </div>
Discussion on convertible debt not included in computation of Earnings per share diluted		<div><div style="text-align:justify;" ><font style="font-family:times new roman;" >At the direction of its Board of Directors, the Company intends, upon conversion, to repay the principal amounts of the convertible senior debentures, due 2040 and due 2041, in cash and settle any additional amounts in shares of Vishay common stock. Accordingly, the debentures are included in the diluted earnings per share computation using the “treasury stock method” (similar to options and warrants) rather than the “if converted method” otherwise required for convertible debt. Under the “treasury stock method,” Vishay calculates the number of shares issuable under the terms of the notes based on the average market price of Vishay common stock during the period, and that number is included in the total diluted shares figure for the period. If the average market price is less than $13.88, no shares are included in the diluted earnings per share computation for the convertible senior debentures due 2040, and if the average market price is less than $19.02, no shares are included in the diluted earnings per share computation for the convertible senior debentures due 2041. </font> </div><div> </div><div style="text-align:justify;" ><font style="font-family:times new roman;" >The Company purchased 99.6% of the outstanding convertible subordinated notes due 2023 pursuant to the option of the holders to require the Company to repurchase their notes on August 1, 2008. The remaining notes, with an aggregate principal amount of $1,870,000, were redeemed at Vishay’s option on August 1, 2010. </font> </div><div> </div><div style="text-align:justify;" ><font style="font-family:times new roman;" >The Company waived its rights to settle the principal amount of the convertible subordinated notes, due 2023, in shares of Vishay common stock. Accordingly, the notes were included in the diluted earnings per share computation using the “treasury stock method” (similar to options and warrants) rather than the “if converted method” otherwise required for convertible debt. If the average market price was less than $21.28, no shares were included in the diluted earnings per share computation. The convertible subordinated notes were anti-dilutive for the fiscal quarter ended July 3, 2010 and therefore are not included in the computation of diluted earnings per share. </font> </div><div> </div> </div>
Convertible Subordinated Notes
Percentage of outstanding convertible subordinated notes repurchased to the option of the holders			99.60%
Principal amount of convertible subordinated notes redeemed		$ 1,870,000	$ 1,870,000
Convertible Senior Debentures 2040
Minimum market price of common stock for inclusion of shares issuable upon conversion of senior debentures for calculation of diluted earnings per share	$ 13.88
Convertible Senior Debentures 2041
Minimum market price of common stock for inclusion of shares issuable upon conversion of senior debentures for calculation of diluted earnings per share	$ 19.02

Fair Value Measurements (Details) - USD ($) $ in Thousands	Jul. 02, 2011	Dec. 31, 2010
Assets held in rabbi trusts	$ 28,974	$ 25,585
Available for sale securities	6,212	5,736
Fair Value Assets	35,168	31,321
Liabilities:
Embedded derivative	(540)	(319)
Fair Value, Inputs, Level 1 [Member]
Assets held in rabbi trusts	17,242	15,575
Available for sale securities	6,212	5,736
Fair Value Assets	23,454	21,311
Liabilities:
Embedded derivative	0	0
Fair Value, Inputs, Level 2 [Member]
Assets held in rabbi trusts	11,732	10,010
Available for sale securities	0	0
Fair Value Assets	11,732	10,010
Liabilities:
Embedded derivative	0	0
Fair Value, Inputs, Level 3 [Member]
Assets held in rabbi trusts	0	0
Available for sale securities	0	0
Fair Value Assets	0	0
Liabilities:
Embedded derivative	(540)	(319)
Convertible Senior Debentures Due In 2041 \| Fair Value, Inputs, Level 1 [Member]
Liabilities:
Embedded derivative	0
Convertible Senior Debentures Due In 2041 \| Fair Value, Inputs, Level 2 [Member]
Liabilities:
Embedded derivative	0
Convertible Senior Debentures Due In 2041 \| Fair Value, Inputs, Level 3 [Member]
Liabilities:
Embedded derivative	(213)
Convertible Senior Debentures [Member] \| Fair Value, Inputs, Level 1 [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures [Member] \| Fair Value, Inputs, Level 2 [Member]
Liabilities:
Embedded derivative	0	0
Convertible Senior Debentures [Member] \| Fair Value, Inputs, Level 3 [Member]
Liabilities:
Embedded derivative	$ (327)	$ (319)

Fair Value Measurements (Details Textuals) - USD ($) $ in Millions	6 Months Ended
	Jul. 02, 2011	Dec. 31, 2010
Long-term Debt, Fair Value	$ 751.7	$ 624.8
Long-term Debt	$ 421.9	$ 431.4
Fair Value of Financial Instruments, Policy	The fair value measurement accounting guidance establishes a valuation hierarchy of the inputs used to measure fair value. This hierarchy prioritizes the inputs to valuation techniques used to measure fair value into three broad levels. The following is a brief description of those three levels: Level 1: Observable inputs such as quoted prices (unadjusted) in active markets for identical assets or liabilities. Level 2: Inputs other than quoted prices that are observable for the asset or liability, either directly or indirectly. These include quoted prices for similar assets or liabilities in active markets and quoted prices for identical or similar assets or liabilities in markets that are not active. Level 3: Unobservable inputs that reflect the Company’s own assumptions. An asset or liability’s classification within the hierarchy is determined based on the lowest level input that is significant to the fair value measurement. There have been no changes in the classification of any financial instruments within the fair value hierarchy in the periods presented.
Convertible Senior Debentures Due In 2040
The convertible senior debentures	November 9, 2010
Convertible Senior Debentures Due In 2041
The convertible senior debentures	May 13, 2011

Commitments and Contingencies (Details Textuals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jul. 02, 2011	Jul. 03, 2010
Annual Executive Payment			$ 10,000
Royalty Payment Percentage			5.00%
Executive Compensation Charge	$ 3,889	$ 0	$ 3,889	$ 0