Inventories (Tables)

9 Months Ended

Sep. 30, 2012

Inventories

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

	September 30, 2012			December 31,2011
Parts and raw materials	$	11,335		$	11,268
Work-in process	2,571			2,017
Finished goods	3,749			3,090
	17,655			16,375
Less reserves	(2,069		)	(1,946		)
Inventories, net	$	15,586		$	14,429