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Condensed Consolidated Statements of Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-In Capital [Member]
Retained Earnings [Member]
Accumulated Other Comprehensive Income (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, 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 income (loss), net of tax:                  
Net income 43,761     43,731     43,731 30  
Other comprehensive income (loss) 225       204   204 21  
Consolidated comprehensive income 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 income (loss), net of tax:                  
Net income 41,200     41,192     41,192 8  
Other comprehensive income (loss) 29       21   21 8  
Consolidated comprehensive income 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
Beginning Balance at Dec. 31, 2025 711,816 460 462,227 421,359 (1,672) (170,935) 711,557 259 118
Issuance of Common Stock under employee stock plans 44,355   39,590     4,765 44,355    
Stock-based compensation expense 8,032   8,032       8,032    
Repurchases of common stock 0           0    
Components of comprehensive income (loss), net of tax:                  
Net income 70,462     70,436     70,436 26  
Other comprehensive income (loss) (71)       (61)   (61) (10)  
Consolidated comprehensive income 70,391           70,375 16  
Ending Balance at Jun. 30, 2026 834,594 460 509,849 491,795 (1,733) (166,170) 834,319 275 118
Beginning Balance at Mar. 31, 2026 754,125 460 467,638 442,023 (1,697) (154,682) 753,860 265 118
Issuance of Common Stock under employee stock plans 26,543   38,031     (11,488) 26,543    
Stock-based compensation expense 4,180   4,180       4,180    
Components of comprehensive income (loss), net of tax:                  
Net income 49,786     49,772     49,772 14  
Other comprehensive income (loss) (40)       (36)   (36) (4)  
Consolidated comprehensive income 49,746           49,736 10  
Ending Balance at Jun. 30, 2026 $ 834,594 $ 460 $ 509,849 $ 491,795 $ (1,733) $ (166,170) $ 834,319 $ 275 $ 118