CONSOLIDATED STATEMENTS OF INCOME - USD ($) shares in Thousands, $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024
Revenues:
Lease revenue		$ 7,241	$ 7,246	$ 14,313	$ 14,416
Mining royalty and rents		3,609	3,231	6,843	6,194
Total revenues		10,850	10,477	21,156	20,610
Cost of operations:
Depreciation/depletion/amortization		2,726	2,543	5,333	5,078
Operating expenses		2,580	1,702	4,439	3,569
Property taxes		1,002	860	1,940	1,667
General and administrative		2,885	2,552	5,462	4,594
Total cost of operations		9,193	7,657	17,174	14,908
Total operating profit		1,657	2,820	3,982	5,702
Net investment income		2,348	3,708	4,909	6,491
Interest expense		(824)	(829)	(1,519)	(1,740)
Equity in loss of joint ventures		(2,379)	(2,724)	(4,410)	(5,743)
Income before income taxes		802	2,975	2,962	4,710
Provision for income taxes		178	916	704	1,316
Net income		624	2,059	2,258	3,394
Income (loss) attributable to noncontrolling interest		46	15	(30)	49
Net income attributable to the Company		$ 578	$ 2,044	$ 2,288	$ 3,345
Earnings per common share
Net income attributable to the Company- basic (in dollars per share)	[1]	$ 0.03	$ 0.11	$ 0.12	$ 0.18
Net income attributable to the Company- diluted (in dollars per share)	[1]	$ 0.03	$ 0.11	$ 0.12	$ 0.18
Number of shares (in thousands) used in computing
Basic earnings per common share (in shares)	[1]	18,966	18,879	18,957	18,871
Diluted earnings per common share (in shares)	[1]	19,016	18,948	19,017	18,958

[1] Adjusted for the 2 for 1 stock split that occurred in April 2024