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v3.8.0.1

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, 2014 | $ 130,552 | $ 393 | $ 171,901 | $ 94,758 | $ (471) | $ (138,927) | $ 127,772 | $ 2,780 | $ 118
Sales of Common Stock | 820 | 2 | 818 |  |  |  | 820 |  |
Acquisition of noncontrolling interest | (360) |  | (144) |  |  |  | (144) | (216) |
Disposition of consolidated subsidiary | (1,742) |  | (5) |  |  |  | (5) | (1,737) |
Stock-based compensation expense | 1,782 |  | 1,782 |  |  |  | 1,782 |  |
Net settlement stock option exercises | (22) |  | (22) |  |  |  | (22) |  |
Other | 7 |  | 7 |  |  |  | 7 |  |
Components of comprehensive income, net of tax |  |  |  |  |  |  |  |  |
Net income | 5,159 |  |  | 4,927 |  |  | 4,927 | 232 |
Other comprehensive income (loss) | (111) |  |  |  | (106) |  | (106) | (5) |
Total comprehensive income | 5,048 |  |  |  |  |  | 4,821 | 227 |
Ending Balance at Dec. 31, 2015 | 136,085 | 395 | 174,337 | 99,685 | (577) | (138,927) | 135,031 | 1,054 | 118
Sales of Common Stock | 1,589 | 2 | 1,587 |  |  |  | 1,589 |  |
Acquisition of noncontrolling interest | (918) |  | (81) |  |  |  | (81) | (837) |
Stock-based compensation expense | 506 |  | 506 |  |  |  | 506 |  |
Net settlement stock option exercises | (5) |  | (5) |  |  |  | (5) |  |
Components of comprehensive income, net of tax |  |  |  |  |  |  |  |  |
Net income | (6,261) |  |  | (6,247) |  |  | (6,247) | (14) |
Other comprehensive income (loss) | 21 |  |  |  | 16 |  | 16 | 5 |
Total comprehensive income | (6,240) |  |  |  |  |  | (6,231) | (9) |
Ending Balance at Dec. 31, 2016 | 131,017 | 397 | 176,344 | 93,438 | (561) | (138,927) | 130,809 | 208 | 118
Sales of Common Stock | 3,300 | 4 | 3,296 |  |  |  | 3,300 |  |
Stock-based compensation expense | 1,735 |  | 1,735 |  |  |  | 1,735 |  |
Other | 20 | 0 | 20 |  |  |  | 20 |  |
Components of comprehensive income, net of tax |  |  |  |  |  |  |  |  |
Net income | 258 |  |  | 167 |  |  | 167 | 91 |
Other comprehensive income (loss) | 89 |  |  |  | 83 |  | 83 | 6 |
Total comprehensive income | 347 |  |  |  |  |  | 250 | 97 |
Ending Balance at Dec. 31, 2017 | $ 136,419 | $ 401 | $ 181,395 | $ 93,605 | $ (478) | $ (138,927) | $ 136,114 | $ 305 | $ 118

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