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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, 2018   91,445,066        
Beginning Balance at Dec. 31, 2018 $ 144,854 $ 469,303 $ (332,058) $ 3,843 $ 141,088 $ 3,766
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) for the period (38,094)   (37,978)   (37,978) (116)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent (854)     (854) (854)  
Shares Issued For Cash By At The Market Offering Shares   8,043,365        
Shares Issued For Cash By At The Market Offering 20,141 $ 20,141     20,141  
Stock Issuance Costs (463) (463)     (463)  
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture 3,771 $ 3,771     3,771  
Effect of shares issued for conversion of Convertible Debentures   266,272        
Shares issued for exercise of share purchase warrants 847 $ 847     847  
Shares Issued for Consulting Services   74,781        
Adjustments to Additional Paid-in-Capital, Shares Issued For Consulting Services $ 208 $ 208     208  
Shares issued for the vesting of restricted stock units (in shares) 786,746 850,150        
Contributions attributable to non-controlling interest $ 46         46
Shares issued for public offering (in shares)   54,805        
Shares issued for consulting services 46,067          
Adjustments to Additional Paid in Capital, Warrant Issued $ 5 $ 5     5  
Stock Issued During Period, Value, Stock Options Exercised $ 146 $ 146     146  
Stock Issued For Exercise Of Warrants 1,057 1,450        
Ending Balance (in shares) at Dec. 31, 2019   100,735,889        
Ending Balance at Dec. 31, 2019 $ 130,607 $ 493,958 (370,036) 2,989 126,911 3,696
Increase (Decrease) in Stockholders' Equity [Roll Forward]            
Net income (loss) for the period (27,872)   (27,776)   (27,776) (96)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent (681)     (681) (681)  
Shares Issued For Cash By Public Offering Shares   11,300,000        
Shares Issued For Cash By Public Offering Amount 16,611 $ 16,611     16,611  
Shares Issued For Cash By At The Market Offering Shares   21,361,784        
Shares Issued For Cash By At The Market Offering 38,109 $ 38,109     38,109  
Stock Issuance Costs (2,330) (2,330)     (2,330)  
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture 2,598 $ 2,598     2,598  
Shares Issued for Consulting Services   120,000        
Adjustments to Additional Paid-in-Capital, Shares Issued For Consulting Services $ 188 $ 188     188  
Shares issued for the vesting of restricted stock units (in shares) 452,932 490,453        
Cash paid to fund employee income tax withholding due upon vesting of restricted stock units $ 415 $ 415     415  
Contributions attributable to non-controlling interest $ 133         133
Shares issued for public offering (in shares)   302,707        
Shares issued for consulting services 74,672          
Adjustments to Additional Paid in Capital, Warrant Issued $ 1 $ 1     1  
Stock Issued During Period, Value, Stock Options Exercised $ 597 $ 597     597  
Stock Issued For Exercise Of Warrants 0 200        
Ending Balance (in shares) at Dec. 31, 2020   134,311,033        
Ending 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 income (loss) for the period 1,448   1,541   1,541 (93)
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent (365)     (365) (365)  
Shares Issued For Cash By At The Market Offering Shares   16,627,512        
Shares Issued For Cash By At The Market Offering 108,653 $ 108,653     108,653  
Stock Issuance Costs (2,445) (2,445)     (2,445)  
Shares Issued, Value, Share-based Payment Arrangement, after Forfeiture 2,158 $ 2,158     2,158  
Shares Issued for Consulting Services   47,393        
Adjustments to Additional Paid-in-Capital, Shares Issued For Consulting Services $ 242 $ 242     242  
Shares issued for the vesting of restricted stock units (in shares) 443,364 478,781        
Cash paid to fund employee income tax withholding due upon vesting of restricted stock units $ 256 $ 256     256  
Contributions attributable to non-controlling interest $ 311         311
Shares issued for public offering (in shares)   775,814        
Shares issued for consulting services 35,933          
Adjustments to Additional Paid in Capital, Warrant Issued $ 26,603 $ 26,603     26,603  
Stock Issued During Period, Value, Stock Options Exercised $ 2,290 2,290     2,290  
Effect of stock options exercised 5,643          
Stock Issued During Period, Value, Cash Payment for Tax Withholding $ 659 $ 659     659  
Stock Issued For Exercise Of Warrants 1,737,981 4,016,023        
Ending Balance (in shares) at Dec. 31, 2021   156,262,199        
Ending Balance at Dec. 31, 2021 $ 295,526 $ 685,903 $ (396,271) $ 1,943 $ 291,575 $ 3,951