Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Schedule of Property, Plant and Equipment

Property, plant and equipment consisted of:

	December 31, 2021		December 31, 2020
Land and improvements	$	1,624	$	1,624
Buildings	18,060		17,772
Machinery and equipment	167,713		166,156
Leasehold improvements	1,277		1,277
	188,674		186,829
Less accumulated depreciation and amortization	(151,791)		(151,544)
	$	36,883	$	35,285