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Other Liabilities (Details) - USD ($)
$ in Thousands
Mar. 31, 2024
Dec. 31, 2023
Other Liabilities    
Premium financing $ 153 $ 269
Operating lease liability 89 105
Litigation accrual (Note 16) 113 250
Current asset retirement and reclamation liabilities 150 150
Other current liabilities 505 774
Operating lease liability   10
Deposits and other 19 18
Other Long-Term Liabilities $ 19 $ 28