Inventories (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Schedule of Inventory, Current

Inventories consisted of the following (in thousands):

	June 30, 2018		December 31, 2017
Finished goods	$	25,200	$	21,668
Parts and materials	11,476		10,613
Work in progress	3,179		1,036
Total inventories	$	39,855	$	33,317