This element represents disclosure of the total aggregate cash dividends paid to the entity by consolidated subsidiaries, by unconsolidated subsidiaries, and by 50% or less owned persons accounted for using the equity method.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
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-Name Accounting Standards Codification
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-Paragraph 3
-Subparagraph (SX 210.12-04(b))
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Period Type:	duration

- Definition

Aggregate number of common shares reserved for future issuance.

+ References

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- Definition

Amount of paid and unpaid cash dividends declared for classes of stock, for example, but not limited to, common and preferred.

+ References

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- Definition

Amount of cash outflow in the form of ordinary dividends provided by the non-wholly owned subsidiary to noncontrolling interests.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Glossary Financing Activities
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-Publisher FASB
-Name Accounting Standards Codification
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-Section 45
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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

Amount of stock repurchase plan authorized.

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No definition available.

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- Definition

Amount remaining of a stock repurchase plan authorized.

+ References

No definition available.

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- Definition

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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-Topic 210
-SubTopic 10
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Stockholders' Equity - Additional information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014	Nov. 30, 2000
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock repurchased as per November plan				$ 30,000,000
Stock repurchase program amount available	$ 8,541,000
Stock repurchase	0	0	0
Cash dividends paid to the Company	$ 750,000	$ 250,000	$ 3,738,000
Cash dividends paid to outside shareholders			162,000
Subsidiaries [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cash dividends on subsidiary common stock	$ 750,000	$ 250,000	$ 3,900,000
Vicor Plan [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common Stock reserved for issuance	14,377,880	14,594,805	14,719,889