Inventories (Tables)

9 Months Ended

Sep. 30, 2018

Inventory Disclosure [Abstract]

Summary of Inventories

(Table only in thousands)	September 30, 2018			December 31, 2017
Raw materials	$	15,500		$	18,444
Work in process		7,520			3,182
Finished goods		787			940
Obsolescence allowance		(1,531	)		(1,597	)
Total inventories	$	22,276		$	20,969