Income Taxes (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Amount
Income taxes computed at the federal statutory rate	$ 19,606	$ 11,878	$ 9,769
(Reduction) increase in taxes resulting from:
Statutory depletion in excess of basis	(2,172)	(1,869)	(1,389)
State income taxes, net of federal income tax benefit	1,144	557	462
Disallowed executive compensation	818	493	456
Stock-based compensation	(218)	33	(35)
Other	(365)	41	210
Income tax expense	$ 18,813	$ 11,133	$ 9,473
Percent of Pretax Income
Income taxes computed at the federal statutory rate (as a percent)	21.00%	21.00%	21.00%
(Reduction) increase in taxes resulting from (as a percent):
Statutory depletion in excess of basis (as a percent)	(2.30%)	(3.30%)	(3.00%)
State income taxes, net of federal income tax benefit (as a percent)	1.20%	1.00%	1.00%
Disallowed executive compensation (as a percent)	0.90%	0.90%	1.00%
Stock-based compensation (as a percent)	(0.20%)		(0.10%)
Other (as a percent)	(0.40%)	0.10%	0.50%
Income tax expense (as a percent)	20.20%	19.70%	20.40%
Deferred tax liabilities
Lime and limestone property, plant and equipment	$ 25,120	$ 25,703
Operating lease right-of-use assets	1,195	1,238
Natural gas interests drilling costs and equipment	87	259
Total	26,402	27,200
Deferred tax assets
Operating lease liabilities	1,247	1,276
Other	496	342
Total	1,743	1,618
Deferred tax liabilities, net, Total	24,659	25,582
Current income taxes:
Accrued expenses	2,010	237
Current income tax expense	19,736	8,606	$ 7,949
Deferred income tax (benefit) expense	(923)	2,527	1,524
Income tax expense	18,813	$ 11,133	$ 9,473
Federal
Operating loss carry forwards
Net operating loss carryforwards	$ 0