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Consolidated Statements of Changes in Shareholders' Equity - USD ($)
$ in Thousands
Total
Common Stock [Member]
Additional Paid-in Capital [Member]
Accumulated Other Comprehensive (Loss) Income [Member]
Retained Earnings [Member]
Beggining Balance at Dec. 31, 2017 $ 66,890 $ 36,115 $ 1,726 $ (391) $ 29,440
Beggining Balance (in shares) at Dec. 31, 2017   42,243      
Shares issued in public offering, net of issuance costs 15,737 $ 15,737      
Shares issued in pubic offering, net of issuance costs (in shares)   3,097      
Shares issued in private placement of common shares, net of issuance costs 7,755 $ 7,755      
Shares issued in private placement of common shares, net of issuance costs (in shares)   1,887      
Shares issued on exercise of stock options (note 18) 283 $ 434 (151)    
Shares issued on exercise of stock options (note 18) (in shares)   366      
Share-based compensation (note 18) 1,454 $ 831 623    
Share-based compensation (note 18) (in shares)   50      
Cumulative translation adjustment (171)     (171)  
Net income (loss) (7,515)       (7,515)
Ending Balance at Dec. 31, 2018 84,433 $ 60,872 2,198 (562) 21,925
Ending Balance (in shares) at Dec. 31, 2018   47,643      
Shares issued in public offering, net of issuance costs 34,226 $ 34,226      
Shares issued in pubic offering, net of issuance costs (in shares)   4,059      
Shares issued on exercise of stock options (note 18) 208 $ 324 (116)    
Shares issued on exercise of stock options (note 18) (in shares)   212      
Share-based compensation (note 18) 4,714 $ 2,297 2,417    
Share-based compensation (note 18) (in shares)   443      
Shares issued on exercise of warrants 466 $ 614 (148)    
Shares issued on exercise of warrants (in shares)   300      
Cumulative translation adjustment 87     87  
Net income (loss) 2,325       2,325
Ending Balance at Dec. 31, 2019 126,459 $ 98,333 4,351 (475) 24,250
Ending Balance (in shares) at Dec. 31, 2019   52,657      
Shares issued in public offering, net of issuance costs 42,550 $ 42,550      
Shares issued in pubic offering, net of issuance costs (in shares)   12,990      
Warrants issued in public offering 11,369   11,369    
Shares issued on exercise of stock options (note 18) 425 $ 692 (267)    
Shares issued on exercise of stock options (note 18) (in shares)   1,265      
Share-based compensation (note 18) 6,142 $ 4,093 2,049    
Cumulative translation adjustment 6,730     6,730  
Net income (loss) 11,608       11,608
Ending Balance at Dec. 31, 2020 $ 205,283 $ 145,668 $ 17,502 $ 6,255 $ 35,858
Ending Balance (in shares) at Dec. 31, 2020   66,912