INTANGIBLE ASSETS - Disclosure of detailed information about intangible assets (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2021
Dec. 31, 2021
Dec. 31, 2020
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   $ 12,130  
Impairment loss $ 428    
Balance, end of year   10,355 $ 12,130
Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   37,006 35,169
Additions   880 1,837
Balance, end of year   37,886 37,006
Amortization and impairment losses [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   (24,876) (22,363)
Amortization for the year   2,227 2,486
Impairment loss   428 27
Balance, end of year   (27,531) (24,876)
Customer relationships [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   3,329  
Balance, end of year   2,479 3,329
Customer relationships [Member] | Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   8,500 8,500
Additions   0 0
Balance, end of year   8,500 8,500
Customer relationships [Member] | Amortization and impairment losses [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   (5,171) (4,321)
Amortization for the year   850 850
Impairment loss   0 0
Balance, end of year   (6,021) (5,171)
Domain names [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   4,300  
Balance, end of year   4,300 4,300
Domain names [Member] | Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   4,300 4,300
Additions   0 0
Balance, end of year   4,300 4,300
Domain names [Member] | Amortization and impairment losses [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   0 0
Amortization for the year   0 0
Impairment loss   0 0
Balance, end of year   0 0
Technology [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   4,296  
Balance, end of year   3,371 4,296
Technology [Member] | Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   24,001 22,164
Additions   880 1,837
Balance, end of year   24,881 24,001
Technology [Member] | Amortization and impairment losses [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   (19,705) (18,042)
Amortization for the year   1,377 1,636
Impairment loss   428 27
Balance, end of year   (21,510) (19,705)
Other [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   205  
Balance, end of year   205 205
Other [Member] | Cost [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   205 205
Additions   0 0
Balance, end of year   205 205
Other [Member] | Amortization and impairment losses [Member]      
Disclosure of detailed information about intangible assets [line items]      
Balance, beginning of year   0 0
Amortization for the year   0 0
Impairment loss   0 0
Balance, end of year   $ 0 $ 0