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Note 1 - Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2023

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]

		2023				2022
Land		$	6,214			$	6,215
Buildings			121,517				119,197
Machinery and equipment			227,567				212,581
			355,298				337,993
Less accumulated depreciation			(220,426	)			(209,353	)
Property, plant and equipment, net		$	134,872			$	128,640

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]

		2023				2022				2021
Balance at beginning of year		$	1,973			$	1,637			$	1,361
Provision			3,655				1,590				1,813
Acquired			-				646				-
Claims			(3,359	)			(1,900	)			(1,537	)
Balance at end of year		$	2,269			$	1,973			$	1,637

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