Reportable Segment (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Sep. 30, 2023 USD ($) segment	Sep. 30, 2022 USD ($)	Dec. 31, 2022 USD ($)
Business segments
Number of business segments | segment			1
Revenues	$ 74,878	$ 66,457	$ 215,638	$ 177,858
Depreciation, depletion and amortization	5,896	5,646	17,564	16,302
Gross profit	28,155	22,590	79,278	53,538
Operating profit	23,800	19,047	66,452	42,512
Identifiable assets, at period end	424,055	355,880	424,055	355,880	$ 367,772
Capital expenditures	15,090	6,635	20,541	18,120
Operating Segment | Lime and Limestone Operations Segment Member
Business segments
Depreciation, depletion and amortization	5,763	5,513	17,179	15,882
Gross profit	28,160	22,166	79,339	52,338
Operating profit	23,807	18,626	66,523	41,321
Identifiable assets, at period end	244,039	228,797	244,039	228,797
Capital expenditures	15,090	6,635	20,541	18,120
Unallocated corporate assets and cash items
Business segments
Depreciation, depletion and amortization	133	133	385	420
Gross profit	(5)	424	(61)	1,200
Operating profit	(7)	421	(71)	1,191
Identifiable assets, at period end	180,016	127,083	180,016	127,083
Lime and limestone operations | Operating Segment | Lime and Limestone Operations Segment Member
Business segments
Revenues	74,582	65,699	214,808	175,608
Others | Unallocated corporate assets and cash items
Business segments
Revenues	$ 296	$ 758	$ 830	$ 2,250