Inventories (Tables)

9 Months Ended

Dec. 31, 2012

Inventories are stated at the lower of first-in, first-out (“FIFO”) cost or market value. The components of inventories are as follows:



(in thousands)	December 31, 2012			March 31, 2012
Raw material	$	7,321		$	5,290
Finished goods and sub-assemblies	6,224			6,095
Reserve for excess and obsolete inventory and net realizable value	(2,038		)	(1,479		)
Total inventory	$	11,507		$	9,906