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INVESTMENTS (Schedule of investments activity) (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2024
Mar. 31, 2023
Dec. 31, 2023
Dec. 31, 2022
Investments in and Advances to Affiliates, Activity [Line Items]        
Impairment $ (898) $ 0    
Level 3 [Member]        
Investments in and Advances to Affiliates, Activity [Line Items]        
Investments, beginning balance 0 764 $ 764 $ 2,670
Impairment     (730) (1,257)
Loss on changes in fair value     (34) (649)
Investments, ending balance     0 764
Level 3 [Member] | Investee common shares [Member]        
Investments in and Advances to Affiliates, Activity [Line Items]        
Investments, beginning balance 0 730 730 1,987
Impairment     (730) (1,257)
Loss on changes in fair value     0 0
Investments, ending balance     0 730
Level 3 [Member] | Warrants CAD 0.30 exercise price [Member]        
Investments in and Advances to Affiliates, Activity [Line Items]        
Investments, beginning balance 0 34 34 625
Impairment     0 0
Loss on changes in fair value     (34) (591)
Investments, ending balance     0 34
Level 3 [Member] | Warrants CAD 1.00 exercise price [Member]        
Investments in and Advances to Affiliates, Activity [Line Items]        
Investments, beginning balance $ 0 $ 0 0 58
Impairment     0 0
Loss on changes in fair value     0 (58)
Investments, ending balance     $ 0 $ 0