Inventory

12 Months Ended

Dec. 31, 2015

Inventory.

Inventory

5. Inventory

        Inventory as of December 31, 2015 and December 31, 2014 consists of the following (in thousands):

	December 31, 2015		December 31, 2014
Raw materials and supplies	$	23,705	$	18,502
Work-in-process		5,567		237
Finished goods		3,480		5,997
	$	32,752	$	24,736

        At December 31, 2015 and 2014, inventory on consignment was valued at approximately $2.2 million and $1.6 million, respectively.