Inventories (Tables)

12 Months Ended

Dec. 31, 2020

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories consisted of the following:

	December 31,
(table only in thousands)	2020			2019
Raw materials	$	14,262		$	15,218
Work in process		5,594			7,328
Finished goods		496			654
Obsolescence allowance		(3,009	)		(2,622	)
Total inventories	$	17,343		$	20,578