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, 2023	$ 541,106	$ 445	$ 383,832	$ 296,674	$ (1,273)	$ (138,927)	$ 540,869	$ 237	$ 118
Issuance of Common Stock under employee stock plans	5,138	6	5,132				5,138
Stock-based compensation expense	7,211		7,211				7,211
Components of comprehensive (loss) income, net of tax:
Net (loss) income	(15,657)			(15,669)			(15,669)	12
Other comprehensive income (loss)	(341)				(310)		(310)	(31)
Consolidated comprehensive income (loss)	(15,998)						(15,979)	(19)
Ending Balance at Jun. 30, 2024	537,457	451	396,175	281,005	(1,583)	(138,927)	537,239	218	118
Beginning Balance at Mar. 31, 2024	532,046	446	389,367	282,201	(1,390)	(138,927)	531,815	231	118
Issuance of Common Stock under employee stock plans	3,382	5	3,377				3,382
Stock-based compensation expense	3,431		3,431				3,431
Components of comprehensive (loss) income, net of tax:
Net (loss) income	(1,195)			(1,196)			(1,196)	1
Other comprehensive income (loss)	(207)				(193)		(193)	(14)
Consolidated comprehensive income (loss)	(1,402)						(1,389)	(13)
Ending Balance at Jun. 30, 2024	537,457	451	396,175	281,005	(1,583)	(138,927)	537,239	218	118
Beginning Balance at Dec. 31, 2024	570,291	452	407,617	302,803	(1,495)	(139,424)	570,071	220	118
Issuance of Common Stock under employee stock plans	4,140	1	4,139				4,140
Stock-based compensation expense	8,058		8,058				8,058
Repurchases of common stock	(17,609)					(17,609)	(17,609)
Components of comprehensive (loss) income, net of tax:
Net (loss) income	43,761			43,731			43,731	30
Other comprehensive income (loss)	225				204		204	21
Consolidated comprehensive income (loss)	43,986						43,935	51
Ending Balance at Jun. 30, 2025	608,866	453	419,814	346,534	(1,291)	(157,033)	608,595	271	118
Beginning Balance at Mar. 31, 2025	580,563	453	415,131	305,342	(1,312)	(139,424)	580,308	255	118
Issuance of Common Stock under employee stock plans	974		974				974
Stock-based compensation expense	3,709		3,709				3,709
Repurchases of common stock	(17,609)					(17,609)	(17,609)
Components of comprehensive (loss) income, net of tax:
Net (loss) income	41,200			41,192			41,192	8
Other comprehensive income (loss)	29				21		21	8
Consolidated comprehensive income (loss)	41,229						41,213	16
Ending Balance at Jun. 30, 2025	$ 608,866	$ 453	$ 419,814	$ 346,534	$ (1,291)	$ (157,033)	$ 608,595	$ 271	$ 118