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CONSOLIDATED STATEMENTS OF STOCKHOLDERS EQUITY - USD ($)
$ in Thousands
Series B Convertible Preferred Stock
Common Stock
Additional Paid-In Capital
Accumulated Deficit
Accumulated Other Comprehensive Income/(Loss)
Total
Beginning balance, shares (in thousands) at Dec. 31, 2019 1,323 20,570        
Beginning balance, amount at Dec. 31, 2019 $ 1 $ 21 $ 86,852 $ (237,421) $ (3,825) $ (154,372)
Stock-based compensation   310 310
Issuance and exercise of warrants, shares (in thousands)   113        
Issuance and exercise of warrants, amount   93 93
Foreign currency translation (loss) gain       (668) (668)
Net income (loss)       (12,052) (12,052)
Ending balance, shares (in thousands) at Mar. 31, 2020 1,323 20,683        
Ending balance, amount at Mar. 31, 2020 $ 1 $ 21 87,255 (249,473) (4,493) (166,689)
Beginning balance, shares (in thousands) at Dec. 31, 2020 1,323 22,830        
Beginning balance, amount at Dec. 31, 2020 $ 1 $ 23 93,426 (274,080) (4,114) (184,744)
Issuance of common stock, shares   5,682        
Issuance of common stock, amount   $ 6 62,389 $ 62,395
Stock options exercised, shares   1,226       0
Stock options exercised, amount   $ 1 1,002 $ 1,003
Stock-based compensation     835 835
Issuance and exercise of warrants, shares (in thousands)   113        
Issuance and exercise of warrants, amount   281 281
Foreign currency translation (loss) gain       (25) (25)
Net income (loss)       (18,112) (18,112)
Ending balance, shares (in thousands) at Mar. 31, 2021 1,323 29,851        
Ending balance, amount at Mar. 31, 2021 $ 1 $ 30 $ 157,933 $ (292,192) $ (4,139) $ (138,367)