Inventories

3 Months Ended

Mar. 31, 2012

Inventories [Abstract]

Inventories

(3) Inventories A summary of inventories is as follows (in thousands):
		March 31,			December 31,
		2012			2011
	Raw materials and subassemblies	$	42,124		$	45,829
	Work-in-process		8,648			8,294
	Finished goods		31,347			29,059
	Reserve for excess and obsolete inventories		(12,786	)		(13,037	)
	Total	$	69,333		$	70,145