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LOANS AND BORROWINGS - Narrative (Details)
$ / shares in Units, shares in Thousands, $ in Thousands
12 Months Ended
Oct. 06, 2020
CAD ($)
Jul. 14, 2020
CAD ($)
Aug. 04, 2016
$ / shares
Jul. 24, 2012
CAD ($)
shares
Dec. 31, 2021
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Oct. 06, 2020
USD ($)
Aug. 03, 2016
$ / shares
Debt Instrument [Line Items]                  
Public offering of floating-rate convertible unsecured subordinated debentures (in shares) | shares       22          
Price per debenture issuance       $ 1,000          
Proceeds from issuance of debt       $ 21,550,000          
Conversion price per share | $ / shares     $ 4.15           $ 15.00
Price Of Aggregate Principal Amount Redeemed, Percent     101.00%            
Change in value of Convertible Debentures         $ 0 $ 155 $ 291    
Convertible Debentures | Convertible Debt                  
Debt Instrument [Line Items]                  
Number of days notice to redeem debentures     30 days            
Repayments of Convertible Debt $ 10,430,000 $ 10,430,000              
Convertible Subordinated Debt   $ 20,860,000           $ 7,820  
Principal amount purchased plus accrued and unpaid interest   101.00%           101.00%