Inventories (Tables)

3 Months Ended

Jul. 31, 2013

Inventories [Abstract]

Inventories

Inventories consisted of the following:

	July 31,		April 30,
	2013		2013
(Amounts in thousands)
Raw materials and subassemblies	$	2,355	$	2,872
Work-in-process		183		33
Finished goods		506		760
	$	3,044	$	3,665