Property, Plant and Equipment

12 Months Ended

Dec. 31, 2021

Property Plant And Equipment [Abstract]

Property, Plant and Equipment

(2) Property, Plant and Equipment

Property, plant and equipment at December 31, 2021 and 2020 consist of the following:

	2021			2020			Estimated useful lives
Land	$	2,756		$	2,756
Buildings and improvements		19,844			19,786		10 to 30 years
Machinery and equipment		132,159			124,199		3 to 15 years
Office furniture, fixtures and equipment		10,094			7,403		3 to 10 years
Automotive equipment		1,832			1,747		3 to 6 years
Construction in progress		8,199			10,392
Total gross value		174,884			166,283
Less accumulated depreciation		(108,773	)		(100,901	)
Total net value	$	66,111		$	65,382

For the years ended December 31, 2021, 2020, and 2019, the Company’s aggregate depreciation expense related to property, plant and equipment was $8,530, $7,466, and $6,504, respectively. For the years ended December 31, 2021, 2020, and 2019, the Company eliminated from assets and accumulated depreciation $658, $1,400 and $868 of fully depreciated assets, respectively.