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Consolidated Statements of Changes in Equity - USD ($)
$ in Thousands
Total
Common Stock
Deficit
Accumulated other comprehensive income
Total shareholders' equity
Non-controlling interests
Beginning balance ( in shares) at Dec. 31, 2020   134,311,033        
Beginning balance at Dec. 31, 2020 $ 157,546 $ 549,317 $ (397,812) $ 2,308 $ 153,813 $ 3,733
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (10,910)   (10,908)   (10,908) (2)
Other comprehensive income 353     353 353  
Shares Issued For Cash By At The Market Offering Shares   5,534,166        
Shares issued for cash by at-the-market offering 30,603 $ 30,603     30,603  
Share issuance cost 689 689     689  
Share-based compensation 697 $ 697     697  
shares issued for exrcise of stock options (in shares)   278,111        
Shares issued for exercise of stock options 666 $ 666     666  
Shares issued for the vesting of restricted stock units (in shares)   478,781        
Cash paid to fund employee income tax withholding due upon vesting of restricted stock units (659) $ (659)     (659)  
Shares issued for exercise of warrants (in shares)   190,405        
Shares issued for exercise of warrants 1,105 $ 1,105     1,105  
Shares issued for consulting services (in shares)   (24,000)        
Shares issued for consulting services (95) $ (95)     (95)  
Ending balance (in shares) at Mar. 31, 2021   140,816,496        
Ending balance at Mar. 31, 2021 178,807 $ 581,135 (408,720) 2,661 175,076 3,731
Beginning balance ( in shares) at Dec. 31, 2020   134,311,033        
Beginning balance at Dec. 31, 2020 157,546 $ 549,317 (397,812) 2,308 153,813 3,733
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (29,658)          
Other comprehensive income 170          
Ending balance (in shares) at Sep. 30, 2021   154,494,078        
Ending balance at Sep. 30, 2021 249,831 $ 670,861 (427,374) 2,478 245,965 3,866
Beginning balance ( in shares) at Mar. 31, 2021   140,816,496        
Beginning balance at Mar. 31, 2021 178,807 $ 581,135 (408,720) 2,661 175,076 3,731
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (10,791)   (10,784)   (10,784) (7)
Other comprehensive income (897)     (897) (897)  
Shares Issued For Cash By At The Market Offering Shares   6,043,937        
Shares issued for cash by at-the-market offering 38,040 $ 38,040     38,040  
Share issuance cost 855 855     855  
Share-based compensation 493 $ 493     493  
shares issued for exrcise of stock options (in shares)   251,960        
Shares issued for exercise of stock options 710 $ 710     710  
Cash paid to fund employee income tax withholding due upon vesting of restricted stock units (48) $ (48)     (48)  
Shares issued for exercise of warrants (in shares)   1,474,439        
Shares issued for exercise of warrants 10,093 $ 10,093     10,093  
Shares issued for consulting services (in shares)   (8,369)        
Shares issued for consulting services $ (50) $ (50)     (50)  
Shares issued for exercise of stock appreciation rights (in shares) 2,500          
Contributions attributable to non-controlling interest $ 229         229
Ending balance (in shares) at Jun. 30, 2021   148,597,701        
Ending balance at Jun. 30, 2021 215,831 $ 629,618 (419,504) 1,764 211,878 3,953
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (7,957)   (7,870)   (7,870) (87)
Other comprehensive income 714     714 714  
Shares issued for cash by public offering (in shares)   3,451,860        
Shares issued for cash by public offering 25,599 $ 25,599     25,599  
Share issuance cost 576 576     576  
Share-based compensation 512 $ 512     512  
shares issued for exrcise of stock options (in shares)   85,521        
Shares issued for exercise of stock options 255 $ 255     255  
Shares issued for exercise of warrants (in shares)   2,351,179        
Shares issued for exercise of warrants 15,405 $ 15,405     15,405  
Shares issued for consulting services (in shares)   (7,817)        
Shares issued for consulting services (48) $ (48)     (48)  
Ending balance (in shares) at Sep. 30, 2021   154,494,078        
Ending balance at Sep. 30, 2021 249,831 $ 670,861 (427,374) 2,478 245,965 3,866
Beginning balance ( in shares) at Dec. 31, 2021   156,262,199        
Beginning balance at Dec. 31, 2021 295,526 $ 685,903 (396,271) 1,943 291,575 3,951
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (14,730)   (14,729)   (14,729) (1)
Other comprehensive income 1,766     1,766 1,766  
Shares Issued For Cash By At The Market Offering Shares   413,751        
Shares issued for cash by at-the-market offering 4,260 $ 4,260     4,260  
Share issuance cost 96 96     96  
Share-based compensation 862 $ 862     862  
shares issued for exrcise of stock options (in shares)   135,926        
Shares issued for exercise of stock options 328 $ 328     328  
Shares issued for the vesting of restricted stock units (in shares)   362,350        
Cash paid to fund employee income tax withholding due upon vesting of restricted stock units (884) $ (884)     (884)  
Shares issued for consulting services (in shares)   (6,022)        
Shares issued for consulting services (51) $ (51)     (51)  
Ending balance (in shares) at Mar. 31, 2022   157,180,248        
Ending balance at Mar. 31, 2022 287,083 $ 690,424 (411,000) 3,709 283,133 3,950
Beginning balance ( in shares) at Dec. 31, 2021   156,262,199        
Beginning balance at Dec. 31, 2021 295,526 $ 685,903 (396,271) 1,943 291,575 3,951
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (42,043)          
Other comprehensive income (4,524)          
Ending balance (in shares) at Sep. 30, 2022   157,607,156        
Ending balance at Sep. 30, 2022 259,864 $ 696,808 (438,221) (2,581) 256,006 3,858
Beginning balance ( in shares) at Mar. 31, 2022   157,180,248        
Beginning balance at Mar. 31, 2022 287,083 $ 690,424 (411,000) 3,709 283,133 3,950
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (18,059)   (18,054)   (18,054) (5)
Other comprehensive income (3,488)     (3,488) (3,488)  
Shares Issued For Cash By At The Market Offering Shares   356,028        
Shares issued for cash by at-the-market offering 3,808 $ 3,808     3,808  
Share issuance cost 86 86     86  
Share-based compensation 1,147 $ 1,147     1,147  
shares issued for exrcise of stock options (in shares)   24,326        
Shares issued for exercise of stock options 67 $ 67     67  
Cash paid to fund employee income tax withholding due upon vesting of restricted stock units (11) $ (11)     (11)  
Shares issued for consulting services (in shares)   (5,183)        
Shares issued for consulting services $ (55) $ (55)     (55)  
Shares issued for exercise of stock appreciation rights (in shares) 3,635          
Ending balance (in shares) at Jun. 30, 2022   157,569,420        
Ending balance at Jun. 30, 2022 $ 270,516 $ 695,404 (429,054) 221 266,571 3,945
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net loss (9,254)   (9,167)   (9,167) (87)
Other comprehensive income (2,802)     (2,802) (2,802)  
Share-based compensation 1,283 $ 1,283     1,283  
shares issued for exrcise of stock options (in shares)   28,781        
Shares issued for exercise of stock options 77 $ 77     77  
Shares issued for consulting services (in shares)   (8,955)        
Shares issued for consulting services (44) $ (44)     (44)  
Ending balance (in shares) at Sep. 30, 2022   157,607,156        
Ending balance at Sep. 30, 2022 $ 259,864 $ 696,808 $ (438,221) $ (2,581) $ 256,006 $ 3,858