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Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2022

Notes Tables

Property, Plant and Equipment, Useful Lives [Table Text Block]

		Years
Buildings		20	-	50
Machinery and equipment		5	-	15
Software		3	-	5

Property, Plant and Equipment [Table Text Block]

		2022				2021
Land		$	6,215			$	5,813
Buildings			119,197				112,760
Machinery and equipment			212,581				188,123
			337,993				306,696
Less accumulated depreciation			(209,353	)			(202,403	)
Property, plant and equipment, net		$	128,640			$	104,293

Schedule of Finite-Lived Intangible Assets [Table Text Block]

		Years
Technology and drawings		13	-	20
Customer relationships		9	-	20
Other intangibles		2	-	18

Schedule of Product Warranty Liability [Table Text Block]

		2022				2021				2020
Balance at beginning of year		$	1,637			$	1,361			$	1,438
Provision			1,590				1,813				1,350
Acquired			646				-				-
Claims			(1,900	)			(1,537	)			(1,427	)
Balance at end of year		$	1,973			$	1,637			$	1,361

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