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v3.19.1

Condensed Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Accumulated Other Comprehensive Income (Loss) | Noncontrolling Interests
--- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2017 | $ (45,615) | $ 59 | $ 519,531 | $ (569,759) | $ 4,604 | $ (50)
Beginning Balance, shares at Dec. 31, 2017 |  | 58,645 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net loss | (8,060) |  |  | (8,050) |  | (10)
Foreign currency translation adjustment | 3,177 |  |  |  | 3,177 |
Exercise of stock options and vesting of restricted stock units (shares) |  | 577 |  |  |  |
Exercise of stock options and vesting of restricted stock units | 521 |  | 521 |  |  |
Taxes withheld on net settled vesting of restricted stock units | (139) |  | (139) |  |  |
Share-based compensation | 880 |  | 880 |  |  |
Ending balance at Mar. 31, 2018 | (49,236) | $ 59 | 520,793 | (577,809) | 7,781 | (60)
Ending Balance, shares at Mar. 31, 2018 |  | 59,222 |  |  |  |
Beginning balance at Dec. 31, 2018 | (36,525) | $ 74 | 546,230 | (577,817) | (4,877) | (135)
Beginning Balance, shares at Dec. 31, 2018 |  | 73,980 |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net loss | (7,471) |  |  | (7,485) |  | 14
Foreign currency translation adjustment | (583) |  |  |  | (583) |
Exercise of stock options and vesting of restricted stock units (shares) |  | 497 |  |  |  |
Exercise of stock options and vesting of restricted stock units | 399 | $ 1 | 398 |  |  |
Taxes withheld on net settled vesting of restricted stock units | (112) |  | (112) |  |  |
Exercise of warrants (in shares) |  | 4,222 |  |  |  |
Exercise of warrants | 10,639 | $ 4 | 10,635 |  |  |
Share-based compensation | 1,057 |  | 1,057 |  |  |
Ending balance at Mar. 31, 2019 | $ (32,596) | $ 79 | $ 558,208 | $ (585,302) | $ (5,460) | $ (121)
Ending Balance, shares at Mar. 31, 2019 |  | 78,699 |  |  |  |

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