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v3.20.1

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Preferred Stock | Common Stock | Additional Paid-in Capital | Accumulated Deficit | Accumulated Other Comprehensive Income (Loss) | Noncontrolling Interests | Series E Preferred Stock | Series E Preferred Stock Preferred Stock | Series E Preferred Stock Additional Paid-in Capital
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2017 | $ (45,615) | $ 0 | $ 59 | $ 519,531 | $ (569,759) | $ 4,604 | $ (50) |  |  |
Beginning Balance, shares (in shares) at Dec. 31, 2017 |  | 0 | 58,645 |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Net loss | (8,143) |  |  |  | (8,058) |  | (85) |  |  |
Foreign currency translation adjustment | (9,481) |  |  |  |  | (9,481) |  |  |  |
Exercise of stock options, vesting of restricted stock units and stock issued under employee stock purchase plan | 2,408 |  | $ 3 | 2,405 |  |  |  |  |  |
Exercise of stock options, vesting of restricted stock units and stock issued under ESPP (in shares) |  |  | 2,645 |  |  |  |  |  |  |
Taxes withheld on net settled vesting of restricted stock units | (656) |  |  | (656) |  |  |  |  |  |
Issuance of common stock | 20,086 |  | $ 12 | 20,074 |  |  |  |  |  |
Issuance of common stock (in shares) |  |  | 12,690 |  |  |  |  |  |  |
Share-based compensation | 4,876 |  |  | 4,876 |  |  |  |  |  |
Share-based compensation (in shares) |  |  | 0 |  |  |  |  |  |  |
Ending Balance at Dec. 31, 2018 | (36,525) | $ 0 | $ 74 | 546,230 | (577,817) | (4,877) | (135) |  |  |
Ending Balance, shares (in shares) at Dec. 31, 2018 |  | 0 | 73,980 |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |
Net loss | (40,110) |  |  |  | (40,125) |  | 15 |  |  |
Foreign currency translation adjustment | 998 |  |  |  |  | 998 |  |  |  |
Exercise of stock options, vesting of restricted stock units and stock issued under employee stock purchase plan | 3,265 |  | $ 2 | 3,263 |  |  |  |  |  |
Exercise of stock options, vesting of restricted stock units and stock issued under ESPP (in shares) |  |  | 2,254 |  |  |  |  |  |  |
Taxes withheld on net settled vesting of restricted stock units | (1,269) |  |  | (1,269) |  |  |  |  |  |
Issuance of common stock | 1,439 |  |  | 1,439 |  |  |  | $ 10,000 |  | $ 10,000
Issuance of common stock (in shares) |  |  | 263 |  |  |  |  |  | 10 |
Exercise of warrants |  |  | 5,477 |  |  |  |  |  |  |
Exercise of warrants | 17,542 |  | $ 6 | 17,536 |  |  |  |  |  |
Share-based compensation | 7,302 |  |  | 7,302 |  |  |  |  |  |
Series E preferred stock dividends | 0 |  |  | 361 | (361) |  |  |  |  |
Ending Balance at Dec. 31, 2019 | $ (37,358) | $ 0 | $ 82 | $ 584,862 | $ (618,303) | $ (3,879) | $ (120) |  |  |
Ending Balance, shares (in shares) at Dec. 31, 2019 |  | 10 | 81,974 |  |  |  |  |  |  |

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