Inventories (Tables)

6 Months Ended

Jun. 30, 2021

Inventory Disclosure [Abstract]

Summary of Inventories

(table only in thousands)	June 30, 2021			December 31, 2020
Raw materials	$	13,995		$	14,262
Work in process		5,595			5,594
Finished goods		528			496
Obsolescence allowance		(2,847	)		(3,009	)
Total inventories	$	17,271		$	17,343