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SUPPLEMENTARY FINANCIAL STATEMENT INFORMATION (Accounts Payable and Accruals - Other) (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
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Accounts payable and accruals - other: |  |
Payroll and related expenses | $ 1,562 | $ 1,460
Interest payable | 767 | 555
Provision for vacation | 1,506 | 1,526
Accrued expenses | 11,981 | 9,586
Royalties payable | 522 | 482
Property and equipment suppliers | 95 | 317
Accounts payable and accruals - other | $ 16,433 | $ 13,926

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