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CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($)
$ in Thousands
Series B Preferred Stock
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Accumulated Other Comprehensive Loss
Non-Controlling Interest
Total
Beginning balance, shares at Dec. 31, 2018 1,323 20,345          
Beginning balance, amount at Dec. 31, 2018 $ 1 $ 20 $ 85,917 $ (193,204) $ (3,576) $ (4,740) $ (115,582)
Stock-based compensation     774       774
Issuance and exercise of warrants, shares   225          
Issuance and exercise of warrants, amount   $ 1 161       162
Other comprehensive income         (249)   (249)
Net loss       (35,716)   (3,761) (39,477)
Reclassification of GAFI noncontrolling interest       (8,501)   8,501 0
Ending balance, shares at Dec. 31, 2019 1,323 20,570          
Ending balance, amount at Dec. 31, 2019 $ 1 $ 21 86,852 (237,421) (3,825) 0 (154,372)
Issuance of common stock, shares   1,507          
Issuance of common stock, amount   $ 2 5,111       5,111
Stock options exercised, shares   528          
Stock options exercised, amount     287       287
Stock-based compensation     995       995
Issuance and exercise of warrants, shares   225          
Issuance and exercise of warrants, amount     181       181
Other comprehensive income         (289)   (289)
Net loss       (36,659)     (36,659)
Ending balance, shares at Dec. 31, 2020 1,323 22,830          
Ending balance, amount at Dec. 31, 2020 $ 1 $ 23 $ 93,426 $ (274,080) $ (4,114) $ 0 $ (184,744)