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CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)
$ in Thousands
3 Months Ended
Mar. 31, 2023
Mar. 31, 2022
CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS    
Sales, net $ 21,540 $ 15,361
Mine cost of sales:    
Production costs 5,653 5,781
Depreciation and amortization 3,479 2,778
Reclamation and remediation 72 47
Total mine cost of sales 9,204 8,606
Mine gross profit 12,336 6,755
Costs and expenses:    
General and administrative expenses 1,059 1,180
Exploration expenses 3,688 2,514
Other (income) expense, net (327) 17
Total costs and expenses 4,420 3,711
Income before income and mining taxes 7,916 3,044
Mining and income tax expense 1,548 426
Net income $ 6,368 $ 2,618
Net income per common share:    
Basic $ 0.26 $ 0.11
Diluted $ 0.26 $ 0.11
Weighted average shares outstanding:    
Basic 24,063,853 23,995,254
Diluted 24,208,676 24,197,423