Inventories

9 Months Ended

Sep. 30, 2011

Inventories [Abstract]

Inventories

(5)Inventories

Inventories consisted of the following (in thousands):

	September 30,	December 31,
	2011	2010
Finished goods and demonstration equipment	$                 2,314	$              1,521
Purchased parts and subassemblies	3,315	2,981
	$                 5,629	$              4,502