Inventories (Tables)

6 Months Ended

Jun. 30, 2018

Inventory Disclosure [Abstract]

Schedule of inventory

Inventories are stated at the lower of standard cost (which approximates actual cost determined using the first-in, first-out cost method) or net realizable value, and consist of the following (in thousands):

	June 30, 2018			December 31, 2017
Raw materials	$	3,003		$	3,316
Finished goods	6,523			6,598
Reserves for excess, obsolete, and slow moving inventories and valuation reserves	$	(3,787	)	$	(4,196	)
Inventories, net	$	5,739		$	5,718