2. Inventories, net (Tables)

12 Months Ended

Dec. 31, 2014

Inventories Net Tables

Schedule of components of inventory

	December 31,
	2014		2013
Finished goods	$	3,826	$	3,525
Work in process		5,127		5,702
Raw materials		3,159		2,348
	$	12,112	$	11,575

Schedule of changes in allowance for obsolete or slow moving inventory

	Years Ended December 31,
	2014			2013
Balance, beginning of year	$	2,960		$	2,832
Charged to cost of sales		9			140
Disposal of inventory		(1,266	)		(12	)
Balance, end of year	$	1,703		$	2,960