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SUPPLEMENTARY CASH FLOW INFORMATION (Details) - USD ($)
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Net change in non-cash working capital items:      
Deferred revenues $ 0 $ 0 $ (573)
Accounts payable and accrued liabilities 1,240,000 (2,877,000) (941,000)
Inventory (203,000) (157,000) 287,000
Prepaid expenses and other assets (680,000) 1,211,000 2,615,000
Amounts receivable 25,000 (39,000) (121,000)
Taxes payable 8,000 1,000 6,000
Amounts due to related parties 1,727,000 440,000 (193,000)
Taxes recoverable 0 (178,000) (100,000)
Other liabilities (3,664,000) 4,150,000 3,182,000
Net change in non-cash working capital $ (1,547,000) $ 2,551,000 $ 4,162,000