Inventories (Tables)

6 Months Ended

Jun. 30, 2012

Inventories

Schedule of inventories, valued at the lower of cost (first-in, first-out basis) or market

	June 30,2012			December 31,2011
Parts and raw materials	$	11,160		$	11,268
Work-in process	2,540			2,017
Finished goods	3,304			3,090
	17,004			16,375
Less reserves	(1,939		)	(1,946		)
Inventories, net	$	15,065		$	14,429