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v3.3.1.900

Consolidated Statements of Stockholders' Equity - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Accumulated Other Comprehensive Income | Accumulated Deficit
--- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2012 | $ 825 | $ 0 | $ 80,989 | $ 460 | $ (80,624)
Beginning balance (in shares) at Dec. 31, 2012 |  | 4,470 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Issuance of common stock, including under registered follow-on offering, net | 2 |  | 2 |  |
Issuance of common stock under employee stock option and stock purchase plans | 45 |  | 45 |  |
Issuance of common stock under employee stock option and stock purchase plans (in shares) |  | 20 |  |  |
Convertible debt issued for financing | 2,697 |  | 2,697 |  |
Issuance of common stock for conversion of convertible debt | 1,501 | $ 1 | 1,500 |  |
Issuance of common stock for conversion of convertible debt (in shares) |  | 652 |  |  |
Stock-based compensation | 201 |  | 201 |  |
Warrants issued | 12 |  | 12 |  |
Foreign currency translation adjustment | 2 |  |  | 2 |
Net income (loss) | (2,361) |  |  |  | (2,361)
Ending balance at Dec. 31, 2013 | 2,924 | $ 1 | 85,446 | 462 | (82,985)
Ending balance (in shares) at Dec. 31, 2013 |  | 5,142 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Issuance of common stock, including under registered follow-on offering, net | 5,090 |  | 5,090 |  |
Issuance of common stock, including under registered follow-on offering, net (in shares) |  | 1,343 |  |  |
Issuance of common stock under employee stock option and stock purchase plans | 58 |  | 58 |  |
Issuance of common stock under employee stock option and stock purchase plans (in shares) |  | 18 |  |  |
Issuance of common stock for conversion of convertible debt | 6,145 |  | 6,145 |  |
Issuance of common stock for conversion of convertible debt (in shares) |  | 2,672 |  |  |
Stock-based compensation | 532 |  | 532 |  |
Warrants exercised | 862 |  | 862 |  |
Warrants exercised (in shares) |  | 249 |  |  |
Foreign currency translation adjustment | 7 |  |  | 7 |
Net income (loss) | (5,845) |  |  |  | (5,845)
Ending balance at Dec. 31, 2014 | 9,773 | $ 1 | 98,133 | 469 | (88,830)
Ending balance (in shares) at Dec. 31, 2014 |  | 9,424 |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |
Issuance of common stock, including under registered follow-on offering, net | 23,574 |  | 23,574 |  |
Issuance of common stock, including under registered follow-on offering, net (in shares) |  | 1,500 |  |  |
Issuance of common stock under employee stock option and stock purchase plans | 346 |  | 346 |  |
Issuance of common stock under employee stock option and stock purchase plans (in shares) |  | 77 |  |  |
Stock-based compensation | 813 |  | 813 |  |
Stock-based compensation (shares) |  | 10 |  |  |
Warrants exercised | 2,503 |  | 2,503 |  |
Warrants exercised (in shares) |  | 638 |  |  |
Foreign currency translation adjustment | (469) |  |  | (469) |
Net income (loss) | 8,780 |  |  |  | 8,780
Ending balance at Dec. 31, 2015 | $ 45,320 | $ 1 | $ 125,369 | $ 0 | $ (80,050)
Ending balance (in shares) at Dec. 31, 2015 |  | 11,649 |  |  |

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