Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2017

Stockholders' Equity [Abstract]

Dividends Declared [Table Text Block]

In 2014, the Company's Board of Directors approved the initiation of a quarterly cash dividend program. Cash dividends were paid quarterly in 2017 and 2016 as follows:

Record date	Payment date	Amount (per share)		Record date	Payment date	Amount (per share)
March 14, 2017	March 29, 2017	$	0.0625	March 11, 2016	March 29, 2016	$	0.0625
June 15, 2017	June 29, 2017	$	0.0625	June 15, 2016	June 29, 2016	$	0.0625
September 15, 2017	September 28, 2017	$	0.0625	September 15, 2016	September 29, 2016	$	0.0625
December 7, 2017	December 21, 2017	$	0.0675	December 8, 2016	December 22, 2016	$	0.0625

Shares of common stock reserved for future issuance

At December 31, 2017, the Company had reserved shares of common stock for future issuance as follows:

Restricted stock units outstanding	986,000
Phantom stock units outstanding	157,000
2007 Stock Incentive Program - available to grant	3,158,000
Convertible senior debentures, due 2040*	24,185,258
Convertible senior debentures, due 2041*	9,670,490
Convertible senior debentures, due 2042*	15,550,865
Conversion of Class B common stock	12,129,227
	65,836,840

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*At December 31, 2017, the convertible senior debentures due 2040, due 2041, and due 2042 are convertible into 21,232,338, 8,451,405, and 13,616,805 shares, respectively, of Vishay common stock.  The Company has reserved adequate shares to ensure it could issue the maximum amount of shares to be delivered upon a make-whole fundamental change as defined in the indentures governing the debentures.