v3.22.2.2
Reportable Segment (Details)
$ in Thousands
 3 Months Ended 9 Months Ended
Sep. 30, 2022
USD ($)
Sep. 30, 2021
USD ($)
Sep. 30, 2022
USD ($)
segment
Sep. 30, 2021
USD ($)
Dec. 31, 2021
USD ($)
Business segments          
Number of business segments | segment     1    
Revenues $ 66,457 $ 52,311 $ 177,858 $ 143,147  
Depreciation, depletion and amortization 5,646 4,989 16,302 15,432  
Gross profit 22,590 17,341 53,538 45,941  
Operating profit 19,047 14,196 42,512 36,772  
Identifiable assets, at period end 355,880 310,908 355,880 310,908 $ 316,196
Capital expenditures 6,635 5,955 18,120 23,731  
Lime and Limestone Operations Segment Member          
Business segments          
Depreciation, depletion and amortization 5,513 4,844 15,882 15,002  
Gross profit 22,166 17,128 52,338 45,634  
Operating profit 18,626 13,983 41,321 36,465  
Identifiable assets, at period end 228,797 204,841 228,797 204,841  
Capital expenditures 6,635 5,955 18,120 23,731  
Other          
Business segments          
Depreciation, depletion and amortization 133 145 420 430  
Gross profit 424 213 1,200 307  
Operating profit 421 213 1,191 307  
Unallocated corporate assets and cash items          
Business segments          
Identifiable assets, at period end 127,083 106,067 127,083 106,067  
Lime and limestone operations | Lime and Limestone Operations Segment Member          
Business segments          
Revenues 65,699 51,749 175,608 141,847  
Others | Other          
Business segments          
Revenues $ 758 $ 562 $ 2,250 $ 1,300