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v3.20.1

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, 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
Beginning balance ( in shares) at Dec. 31, 2019 |  | 100,735,889 |  |  |  |
Beginning balance at Dec. 31, 2019 | 130,607 | $ 493,958 | (370,036) | 2,989 | 126,911 | 3,696
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |
Net loss | (5,664) |  | (5,657) |  | (5,657) | (7)
Other comprehensive loss | 152 |  |  | 152 | 152 |
Shares issued for cash by at-the-market offering (in shares) |  | 13,688,815 |  |  |  |
Shares issued for cash by at-the-market offering | 20,658 | $ 20,658 |  |  | 20,658 |
Share issuance cost | (1,563) | (1,563) |  |  | (1,563) |
Share-based compensation | 997 | $ 997 |  |  | 997 |
Shares issued for the vesting of restricted stock units (in shares) |  | 490,453 |  |  |  |
Shares issued for consulting services (in shares) |  | 30,000 |  |  |  |
Shares issued for consulting services | 57 | $ 57 |  |  | 57 |
Contributions attributable to non-controlling interest | 133 |  |  |  |  | 133
Ending balance (in shares) at Mar. 31, 2020 |  | 114,945,157 |  |  |  |
Ending balance at Mar. 31, 2020 | $ 144,962 | $ 513,692 | $ (375,693) | $ 3,141 | $ 141,140 | $ 3,822

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