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Summary of Significant Accounting Policies (Tables)
 12 Months Ended
Dec. 31, 2023
Accounting Policies [Abstract]  
Accounts Receivable, Doubtful Accounts Table Changes in the allowance are as follows:
 Year Ended December 31,
 202320222021
 (In Thousands)
At beginning of period$538 $289 $6,824 
Activity in the period:   
Provision for credit losses
285 257 (4)
Account charge offs, net of recoveries
(209)(8)(6,531)
At end of period$614 $538 $289 
Property, Plant, and Equipment Table
Property, plant, and equipment are stated at cost. Expenditures that increase the useful lives of assets are capitalized. The cost of repairs and maintenance is charged to operations as incurred. Depreciation is computed using the straight-line method over the estimated useful lives of the assets, which are generally as follows:
Buildings25 years
Machinery and equipment3 – 10 years
Automobiles and trucks4 – 5 years
Chemical plants15 – 30 years
Schedule of Cash Flow, Supplemental Disclosures
Supplemental cash flow information from continuing and discontinued operations is as follows:
Year Ended December 31,
202320222021
(in thousands)
Supplemental cash flow information(1):
 
Interest paid$19,171 $15,669 $14,347 
Income taxes paid$4,782 $3,270 $2,100 
December 31,
202320222021
(in thousands)
Accrued capital expenditures
$5,171 $4,901 $5,356 
(1) Information for the year ended December 31, 2021 includes activity for CSI Compressco for January only.