Annual report pursuant to Section 13 and 15(d)

CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY

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CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY - USD ($)
shares in Thousands, $ in Thousands
Total
Convertible series A preferred shares
Common Shares
Additional paid-in capital
Accumulated other comprehensive loss
Accumulated deficit
Balance at beginning of period (shares) at Dec. 31, 2016   5 43,059      
Balance at beginning of period at Dec. 31, 2016 $ 25,227 $ 0 $ 43 $ 129,350 $ (1,501) $ (102,665)
Increase (Decrease) in Stockholders' Equity            
Net loss (17,647)         (17,647)
Foreign currency translation adjustment (2,374)       (2,374)  
Unrealized losses on investments (820)       (820)  
Stock based compensation expense 3,046     3,046    
Issuance of common stock resulting from exercise of stock options (shares)     453      
Issuance of common stock resulting from exercise of stock options 781     781    
Issuance of common stock resulting from exercise of warrants (shares)     1,505      
Issuance of common stock resulting from exercise of warrants 3,309   $ 2 3,307    
Balance at end of period (shares) at Dec. 31, 2017   5 45,017      
Balance at end of period at Dec. 31, 2017 11,522 $ 0 $ 45 136,484 (4,695) (120,312)
Increase (Decrease) in Stockholders' Equity            
Net loss (26,754)         (26,754)
Foreign currency translation adjustment 1,196       1,196  
Unrealized losses on investments 517       517  
Stock based compensation expense 4,943     4,943    
Issuance of common stock resulting from exercise of stock options (shares)     596      
Issuance of common stock resulting from exercise of stock options 986   $ 1 985    
Issuance of common stock resulting from exercise of warrants (shares)     157      
Issuance of common stock resulting from exercise of warrants 314     314    
Issuance of common stock net $3,374 in offering costs (shares)     6,325      
Issuance of common stock net $3,374 in offering costs 47,211   $ 6 47,205    
Preferred stock conversion (shares)   (2) 2,056      
Preferred stock conversion 0   $ 2 (2)    
Balance at end of period (shares) at Dec. 31, 2018   3 54,151      
Balance at end of period at Dec. 31, 2018 $ 39,935 $ 0 $ 54 $ 189,929 $ (2,982) $ (147,066)