Inventories (Tables)

3 Months Ended

Mar. 31, 2023

Inventory Disclosure [Abstract]

Schedule of inventories

Inventories consist of the following:

(In thousands)	March 31 2023		December 31 2022
Finished goods	$	12,884	$	11,809
Work-in-process	1,776		2,030
Raw materials and purchased parts	29,270		27,946
Stores and supplies	40,775		39,590
Total inventories	$	84,705	$	81,375