Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2019

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

Property, plant and equipment as of December 31 were as follows (in thousands):

	2019			2018
Land	$	3,600		$	2,089
Buildings and improvements		45,791			45,170
Machinery and equipment		220,405			208,135
Furniture and fixtures		8,231			7,239
Construction in-progress and deposits		4,362			9,251
		282,389			271,884
Accumulated depreciation and amortization		(229,698	)		(221,452	)
Right of use asset — net		4,261			—
Net balance	$	56,952		$	50,432