Condensed Consolidated Statements of Equity - USD ($) $ in Thousands	Total	Common Stock [Member]	Additional Paid-In Capital [Member]	Retained Earnings [Member]	Accumulated Other Comprehensive Loss [Member]	Treasury Stock [Member]	Total Vicor Corporation Stockholders' Equity [Member]	Noncontrolling Interest [Member]	Class B Common Stock [Member] Common Stock [Member]
Beginning Balance at Dec. 31, 2021	$ 423,905	$ 439	$ 345,664	$ 217,633	$ (1,328)	$ (138,927)	$ 423,599	$ 306	$ 118
Issuance of Common Stock under employee stock plans	1,974	1	1,973				1,974
Stock-based compensation expense	4,616		4,616				4,616
Components of comprehensive income (loss), net of tax:
Net income (loss)	15,570			15,592			15,592	(22)
Other comprehensive loss	(961)				(918)		(918)	(43)
Total comprehensive income (loss)	14,609						14,674	(65)
Ending Balance at Jun. 30, 2022	445,104	440	352,253	233,225	(2,246)	(138,927)	444,863	241	118
Beginning Balance at Mar. 31, 2022	432,189	440	349,467	222,632	(1,824)	(138,927)	431,906	283	118
Issuance of Common Stock under employee stock plans	164		164				164
Stock-based compensation expense	2,622		2,622				2,622
Components of comprehensive income (loss), net of tax:
Net income (loss)	10,580			10,593			10,593	(13)
Other comprehensive loss	(451)				(422)		(422)	(29)
Total comprehensive income (loss)	10,129						10,171	(42)
Ending Balance at Jun. 30, 2022	445,104	440	352,253	233,225	(2,246)	(138,927)	444,863	241	118
Beginning Balance at Dec. 31, 2022	464,336	441	360,365	243,079	(988)	(138,927)	464,088	248	118
Issuance of Common Stock under employee stock plans	2,722	2	2,720				2,722
Stock-based compensation expense	5,829		5,829				5,829
Components of comprehensive income (loss), net of tax:
Net income (loss)	28,353			28,345			28,345	8
Other comprehensive loss	(221)				(207)		(207)	(14)
Total comprehensive income (loss)	28,132						28,138	(6)
Ending Balance at Jun. 30, 2023	501,019	443	368,914	271,424	(1,195)	(138,927)	500,777	242	118
Beginning Balance at Mar. 31, 2023	480,659	442	365,442	254,323	(993)	(138,927)	480,405	254	118
Issuance of Common Stock under employee stock plans	461	1	460				461
Stock-based compensation expense	3,012		3,012				3,012
Components of comprehensive income (loss), net of tax:
Net income (loss)	17,102			17,101			17,101	1
Other comprehensive loss	(215)				(202)		(202)	(13)
Total comprehensive income (loss)	16,887						16,899	(12)
Ending Balance at Jun. 30, 2023	$ 501,019	$ 443	$ 368,914	$ 271,424	$ (1,195)	$ (138,927)	$ 500,777	$ 242	$ 118