Inventories (Tables)

12 Months Ended

Dec. 31, 2017

Inventory Disclosure [Abstract]

Summary of Inventories

Inventories consisted of the following:

(Table only in thousands)	2017			2016
Raw materials	$	18,444		$	17,889
Work in process		3,182			3,986
Finished goods		940			1,508
Obsolescence allowance		(1,597	)		(1,896	)
Total inventories	$	20,969		$	21,487