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CONSOLIDATED STATEMENTS OF INCOME - USD ($)
shares in Thousands, $ in Thousands
 3 Months Ended
Mar. 31, 2025
Mar. 31, 2024
Revenues:    
Lease revenue $ 7,072 $ 7,170
Mining royalty and rents 3,234 2,963
Total revenues 10,306 10,133
Cost of operations:    
Depreciation/depletion/amortization 2,607 2,535
Operating expenses 1,859 1,867
Property taxes 938 807
General and administrative 2,577 2,042
Total cost of operations 7,981 7,251
Total operating profit 2,325 2,882
Net investment income 2,561 2,783
Interest expense (695) (911)
Equity in loss of joint ventures (2,031) (3,019)
Income before income taxes 2,160 1,735
Provision for income taxes 526 400
Net income 1,634 1,335
Income (loss) attributable to noncontrolling interest (76) 34
Net income attributable to the Company $ 1,710 $ 1,301
Earnings per common share    
Net income attributable to the Company- basic (usd per share) [1] $ 0.09 $ 0.07
Net income attributable to the Company- diluted (usd per share) [1] $ 0.09 $ 0.07
Number of shares (in thousands) used in computing    
Number of shares (in thousands) used in computing basic earnings per common shares (in shares) [1] 18,947 18,859
Number of shares (in thousands) used in computing diluted earnings per common shares (in shares) [1] 19,012 18,944
[1] Adjusted for the 2 for 1 stock split that occurred in April 2024