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Note 18 - Property, Plant and Equipment - Schedule of Depreciation Expense (Details)
$ in Thousands
9 Months Ended
Dec. 31, 2023
USD ($)
Statement Line Items [Line Items]  
Mine, development, infrastructure and other $ 2,158
Mining assets [member]  
Statement Line Items [Line Items]  
Mine, development, infrastructure and other 856
Plant and equipment [member]  
Statement Line Items [Line Items]  
Mine, development, infrastructure and other $ 1,302