Inventories, net (Tables)

12 Months Ended

Apr. 30, 2013

Inventories, net

Schedule of inventories

	April 30,
	2013			2012
	(In thousands)
Raw materials	$	12,845		$	13,969
Work in process		16,745			7,390
Finished goods		36,842			24,934
Inventories, gross		66,432			46,293
Reserve for inventory obsolescence		(3,871	)		(2,754	)
Inventories, net	$	62,561		$	43,539