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v3.19.2

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]
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2017 | $ 136,419 | $ 401 | $ 181,395 | $ 93,605 | $ (478) | $ (138,927) | $ 136,114 | $ 305 | $ 118
Sales of Common Stock | 4,039 | 3 | 4,036 |  |  |  | 4,039 |  |
Stock-based compensation expense | 1,916 |  | 1,916 |  |  |  | 1,916 |  |
Issuances of stock through employee stock purchase plan | 927 | 1 | 926 |  |  |  | 927 |  |
Cumulative effect of adoption of new accounting principle (Topic 606) | 3,670 |  |  | 3,670 |  |  | 3,670 |  |
Other | (3) | (6) | 3 |  |  |  | (3) |  |
Components of comprehensive income, net of tax |  |  |  |  |  |  |  |  |
Net income | 11,891 |  |  | 11,803 |  |  | 11,803 | 88 |
Other comprehensive income (loss) | 79 |  |  |  | 77 |  | 77 | 2 |
Total comprehensive income | 11,970 |  |  |  |  |  | 11,880 | 90 |
Ending Balance at Jun. 30, 2018 | 158,938 | 399 | 188,276 | 109,078 | (401) | (138,927) | 158,543 | 395 | 118
Beginning Balance at Mar. 31, 2018 | 146,355 | 402 | 183,415 | 101,218 | (234) | (138,927) | 145,992 | 363 | 118
Sales of Common Stock | 3,681 | 3 | 3,678 |  |  |  | 3,681 |  |
Stock-based compensation expense | 1,180 |  | 1,180 |  |  |  | 1,180 |  |
Other | (3) | (6) | 3 |  |  |  | (3) |  |
Components of comprehensive income, net of tax |  |  |  |  |  |  |  |  |
Net income | 7,909 |  |  | 7,860 |  |  | 7,860 | 49 |
Other comprehensive income (loss) | (184) |  |  |  | (167) |  | (167) | (17) |
Total comprehensive income | 7,725 |  |  |  |  |  | 7,693 | 32 |
Ending Balance at Jun. 30, 2018 | 158,938 | 399 | 188,276 | 109,078 | (401) | (138,927) | 158,543 | 395 | 118
Beginning Balance at Dec. 31, 2018 | 184,090 | 402 | 193,457 | 129,000 | (394) | (138,927) | 183,656 | 434 | 118
Sales of Common Stock | 428 |  | 428 |  |  |  | 428 |  |
Stock-based compensation expense | 1,539 |  | 1,539 |  |  |  | 1,539 |  |
Issuances of stock through employee stock purchase plan | 1,279 | 1 | 1,278 |  |  |  | 1,279 |  |
Other | (4) |  | (4) |  |  |  | (4) |  |
Components of comprehensive income, net of tax |  |  |  |  |  |  |  |  |
Net income | 6,862 |  |  | 6,849 |  |  | 6,849 | 13 |
Other comprehensive income (loss) | 122 |  |  |  | 116 |  | 116 | 6 |
Total comprehensive income | 6,984 |  |  |  |  |  | 6,965 | 19 |
Ending Balance at Jun. 30, 2019 | 194,316 | 403 | 196,698 | 135,849 | (278) | (138,927) | 193,863 | 453 | 118
Beginning Balance at Mar. 31, 2019 | 190,692 | 403 | 195,799 | 133,286 | (436) | (138,927) | 190,243 | 449 | 118
Sales of Common Stock | 137 |  | 137 |  |  |  | 137 |  |
Stock-based compensation expense | 766 |  | 766 |  |  |  | 766 |  |
Other | (4) |  | (4) |  |  |  | (4) |  |
Components of comprehensive income, net of tax |  |  |  |  |  |  |  |  |
Net income | 2,556 |  |  | 2,563 |  |  | 2,563 | (7) |
Other comprehensive income (loss) | 169 |  |  |  | 158 |  | 158 | 11 |
Total comprehensive income | 2,725 |  |  |  |  |  | 2,721 | 4 |
Ending Balance at Jun. 30, 2019 | $ 194,316 | $ 403 | $ 196,698 | $ 135,849 | $ (278) | $ (138,927) | $ 193,863 | $ 453 | $ 118

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