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Condensed Consolidated Statements of Comprehensive Income (Loss) (Unaudited) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Condensed Consolidated Statements of Comprehensive Income (Loss) [Abstract]
Consolidated net income	$ 280	$ 1,175	$ 865	$ 8,548
Foreign currency translation gains (losses)	82	141	(31)	141
Unrealized gains (losses), net of tax on available-for-sale securities	339	(53)	565	874
Consolidated comprehensive income	701	1,263	1,399	9,563
Less: Comprehensive income attributable to noncontrolling interest	99	106	126	391
Comprehensive income attributable to Vicor Corporation	$ 602	$ 1,157	$ 1,273	$ 9,172

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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.

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