Note 6 - Property, Plant and Equipment

6 Months Ended

Jun. 30, 2023

Notes to Financial Statements

Property, Plant and Equipment Disclosure [Text Block]

6. Property, plant and equipment

Property, plant and equipment are summarized as follows: ​

	June 30,			December 31,
	2023			2022
Land	$	3,969		$	3,969
Land improvements		5,431			5,431
Leasehold improvements		6,082			5,844
Buildings		36,247			35,858
Machinery and equipment		74,035			75,190
Furniture and fixtures		25,535			24,605
Mobile equipment and other		5,094			4,927
Construction-in-process		6,699			5,272
Total property, plant and equipment		163,092			161,096
Less accumulated depreciation		(95,675	)		(92,436	)
Net property, plant and equipment	$	67,417		$	68,660