Significant Accounting Policies - Computation Of Basic And Diluted Net Income (Loss) Per Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands		12 Months Ended
		Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Numerator:
Net income attributable to Vicor Corporation		$ 53,595	$ 25,446	$ 56,625
Denominator:
Denominator for basic net income per share- weighted average shares	[1]	44,320	44,005	43,651
Effect of dilutive securities:
Employee stock options	[2]	684	889	1,315
Denominator for diluted net income per share- adjusted weighted-average shares and assumed conversions	[3]	45,004	44,894	44,966
Basic net income per share		$ 1.21	$ 0.58	$ 1.3
Diluted net income per share		$ 1.19	$ 0.57	$ 1.26

[1] Denominator represents weighted average number of Common Shares and Class B Common Shares outstanding

[2] Options to purchase 1,557,927, 879,228 and 60,736 shares of Common Stock in 2023, 2022, and 2021, respectively, were not included in the calculation of net income per share as the effect would have been antidilutive.

[3] Denominator represents weighted average number of Common Shares and Class B Common Shares outstanding for the year, adjusted to include the dilutive effect, if any, of outstanding options.