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PLANT EQUIPMENT AND MINING PROPERTIES (Details) - USD ($)
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Mining Property [Member]    
Statement [Line Items]    
Beginning Balance $ 13,038,000 $ 13,149,000
Additions/ Transfers 1,649,000 (113,000)
Writendowns 0  
Effect Of Movements In Exchange Rates 0 2,000
Ending Balance 14,687,000 13,038,000
Accumulated Depletion And Depreciation, Beginning Balance 8,856,000 8,643,000
Accumulated Depletion And Depreciation, Additions / Transfers 250,000 213,000
Accumulated Depletion And Depreciation, Effect Of Movements In Exchange Rates   0
Accumulated Depletion And Depreciation, Wrritedowns 0  
Accumulated Depletion And Depreciation, Ending Balance 9,106,000 8,856,000
Net book value, Beginning 4,506,000  
Net book value, Ending 5,581,000 4,182,000
Computer equipment [member]    
Statement [Line Items]    
Beginning Balance 335,000 347,000
Additions/ Transfers 441,000 (12,000)
Writendowns 0  
Effect Of Movements In Exchange Rates (2,000) 0
Ending Balance 774,000 335,000
Accumulated Depletion And Depreciation, Beginning Balance 267,000 256,000
Accumulated Depletion And Depreciation, Additions / Transfers 331,000 11,000
Accumulated Depletion And Depreciation, Effect Of Movements In Exchange Rates   0
Accumulated Depletion And Depreciation, Wrritedowns 0  
Accumulated Depletion And Depreciation, Ending Balance 598,000 267,000
Net book value, Beginning 91,000  
Net book value, Ending 176,000 68,000
Mill machinery and processing equipment [Member]    
Statement [Line Items]    
Beginning Balance 18,613,000 17,483,000
Additions/ Transfers 4,781,000 1,130,000
Writendowns (100,000)  
Effect Of Movements In Exchange Rates 0 0
Ending Balance 23,294,000 18,613,000
Accumulated Depletion And Depreciation, Beginning Balance 6,667,000 5,297,000
Accumulated Depletion And Depreciation, Additions / Transfers 146,000 1,370,000
Accumulated Depletion And Depreciation, Effect Of Movements In Exchange Rates   0
Accumulated Depletion And Depreciation, Wrritedowns (80,000)  
Accumulated Depletion And Depreciation, Ending Balance 6,733,000 6,667,000
Net book value, Beginning 12,186,000  
Net book value, Ending 16,561,000 11,946,000
Buildings and construction in process [Member]    
Statement [Line Items]    
Beginning Balance 11,778,000 11,263,000
Additions/ Transfers 2,907,000 508,000
Writendowns 0  
Effect Of Movements In Exchange Rates 8,000 7,000
Ending Balance 14,693,000 11,778,000
Accumulated Depletion And Depreciation, Beginning Balance 1,896,000 1,624,000
Accumulated Depletion And Depreciation, Additions / Transfers 1,133,000 272,000
Accumulated Depletion And Depreciation, Effect Of Movements In Exchange Rates   0
Accumulated Depletion And Depreciation, Wrritedowns 0  
Accumulated Depletion And Depreciation, Ending Balance 3,029,000 1,896,000
Net book value, Beginning 9,639,000  
Net book value, Ending 11,664,000 9,882,000
Plant, Eqipment and mining properties [Member]    
Statement [Line Items]    
Beginning Balance 58,599,000 55,760,000
Additions/ Transfers 12,346,000 2,829,000
Writendowns (1,792,000)  
Effect Of Movements In Exchange Rates (12,000) 10,000
Ending Balance 69,141,000 58,599,000
Accumulated Depletion And Depreciation, Beginning Balance 22,924,000 20,914,000
Accumulated Depletion And Depreciation, Additions / Transfers 3,623,000 2,010,000
Accumulated Depletion And Depreciation, Effect Of Movements In Exchange Rates   0
Accumulated Depletion And Depreciation, Wrritedowns (1,462,000)  
Accumulated Depletion And Depreciation, Ending Balance 25,085,000 22,924,000
Net book value, Beginning 34,846,000  
Net book value, Ending 44,056,000 35,675,000
Office Equipment Furniture And Fixtures [Member]    
Statement [Line Items]    
Beginning Balance 595,000 563,000
Additions/ Transfers 185,000 31,000
Writendowns 0  
Effect Of Movements In Exchange Rates (17,000) 1,000
Ending Balance 763,000 595,000
Accumulated Depletion And Depreciation, Beginning Balance 294,000 187,000
Accumulated Depletion And Depreciation, Additions / Transfers 147,000 107,000
Accumulated Depletion And Depreciation, Effect Of Movements In Exchange Rates   0
Accumulated Depletion And Depreciation, Wrritedowns 0  
Accumulated Depletion And Depreciation, Ending Balance 441,000 294,000
Net book value, Beginning 376,000  
Net book value, Ending 322,000 301,000
Mine Machinery And Transportation Equipment [Member]    
Statement [Line Items]    
Beginning Balance 14,240,000 12,955,000
Additions/ Transfers 2,383,000 1,285,000
Writendowns (1,692,000)  
Effect Of Movements In Exchange Rates (1,000) 0
Ending Balance 14,930,000 14,240,000
Accumulated Depletion And Depreciation, Beginning Balance 4,944,000 4,907,000
Accumulated Depletion And Depreciation, Additions / Transfers 1,616,000 37,000
Accumulated Depletion And Depreciation, Effect Of Movements In Exchange Rates   0
Accumulated Depletion And Depreciation, Wrritedowns (1,382,000)  
Accumulated Depletion And Depreciation, Ending Balance 5,178,000 4,944,000
Net book value, Beginning 8,048,000  
Nnet book value, Ending $ 9,752,000 $ 9,296,000