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Property, Plant, and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant & Equipment
Total	$ 200,525	$ 183,500
Less accumulated depreciation	(117,258)	(107,603)
Property, plant and equipment, net	83,267	75,897
Purchase commitments for capital expenditures in progress	(2,812)	(5,315)
Accounts payable	29,586	22,695
Depreciation expense	9,655	9,181	$ 8,659
Accounts Payable, Current
Property, Plant & Equipment
Purchase commitments for capital expenditures in progress	(868)	(329)
Land and land improvements
Property, Plant & Equipment
Total	6,009	6,009
Building and improvements
Property, Plant & Equipment
Total	44,490	43,901
Machinery and equipment
Property, Plant & Equipment
Total	139,408	124,760
Tools, dies and patterns
Property, Plant & Equipment
Total	3,222	2,225
Additions in progress
Property, Plant & Equipment
Total	$ 7,396	$ 6,605

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