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v3.19.1

Consolidated Statements of Changes in Equity - USD ($) $ in Thousands | Total | Common Stock | Deficit | Accumulated other comprehensive income | Total shareholders' equity | Non-controlling interests
--- | --- | --- | --- | --- | --- | ---
Beginning balance ( in shares) at Dec. 31, 2017 |  | 74,366,824 |  |  |  |
Beginning balance at Dec. 31, 2017 | $ 129,742 | $ 430,383 | $ (306,813) | $ 2,289 | $ 125,859 | $ 3,883
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net loss | (10,829) |  | (10,822) |  | (10,822) | (7)
Other comprehensive loss | (687) |  |  | (687) | (687) |
Shares issued for cash by at-the-market offering (in shares) |  | 711,253 |  |  |  |
Shares issued for cash by at-the-market offering | 1,176 | $ 1,176 |  |  | 1,176 |
Share issuance cost | (29) | (29) |  |  | (29) |
Share-based compensation | 1,202 | $ 1,202 |  |  | 1,202 |
Shares issued for the vesting of restricted stock units (in shares) |  | 899,192 |  |  |  |
Cash paid to fund employee income tax withholding due upon vesting of restricted stock units | (914) | $ (914) |  |  | (914) |
Ending balance (in shares) at Mar. 31, 2018 |  | 75,977,269 |  |  |  |
Ending balance at Mar. 31, 2018 | 119,661 | $ 431,818 | (317,635) | 1,602 | 115,785 | 3,876
Beginning balance ( in shares) at Dec. 31, 2018 |  | 91,445,066 |  |  |  |
Beginning balance at Dec. 31, 2018 | 144,854 | $ 469,303 | (332,058) | 3,843 | 141,088 | 3,766
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net loss | (12,134) |  | (12,127) |  | (12,127) | (7)
Other comprehensive loss | (136) |  |  | (136) | (136) |
Shares issued for cash by at-the-market offering (in shares) |  | 754,712 |  |  |  |
Shares issued for cash by at-the-market offering | 2,471 | $ 2,471 |  |  | 2,471 |
Share issuance cost | (62) | (62) |  |  | (62) |
Share-based compensation | 1,121 | $ 1,121 |  |  | 1,121 |
Shares issued for exercise of stock options (in shares) |  | 33,906 |  |  |  |
Shares issued for exercise of stock options | 102 | $ 102 |  |  | 102 |
Shares issued for the vesting of restricted stock units (in shares) |  | 850,150 |  |  |  |
Shares issued for consulting services (in shares) |  | 18,848 |  |  |  |
Shares issued for consulting services | 52 | $ 52 |  |  | 52 |
Ending balance (in shares) at Mar. 31, 2019 |  | 93,102,682 |  |  |  |
Ending balance at Mar. 31, 2019 | $ 136,268 | $ 472,987 | $ (344,185) | $ 3,707 | $ 132,509 | $ 3,759

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