Inventory

All inventories are stated at the lower of cost or net realizable value. Cost of inventories are determined on a first-in, first-out basis. The Company measures inventory using the inventory classes raw materials and supplies, work in process, and finished goods. The classes presented allow the Company to accurately track product throughout a manufacturing process.

The following table shows the inventory by class (in thousands):



	December 31, 2016			December 31, 2015
Raw material and supplies	$	2,843		$	3,165
Work in process	371			221
Finished goods	15,790			20,774
Inventory, gross	19,004			24,160
Inventory reserve	(3,181		)	(3,361		)
Inventory, net	$	15,823		$	20,799