Inventories and Other Deferred Costs (Tables)

9 Months Ended

Sep. 30, 2018

Text Block [Abstract]

Summary of Inventories and Other Deferred Costs

Inventories and other deferred costs consist of the following:

	September 30, 2018		December 31, 2017
	(in thousands)
Raw materials	$	3,830	$	3,200
Work-in-process		3,907		3,745
Finished products		14,714		12,278
Other deferred costs		1,425		1,823
Total inventory and other deferred costs	$	23,876	$	21,046