SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Apr. 30, 2012

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II—VALUATION AND QUALIFYING ACCOUNTS

			Additions
Description	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts		Deductions			Balance at End of Period
	(In thousands)
Allowance for doubtful accounts for the year ended April 30:
2010	$	291	$	601	$	—	$	(147	)	$	745
2011	$	745	$	492	$	—	$	(598	)	$	639
2012	$	639	$	282	$	—	$	—		$	921
Warranty reserve for the year ended April 30:
2010	$	523	$	1,512	$	—	$	(1,231	)	$	804
2011	$	804	$	1,449	$	—	$	(1,126	)	$	1,127
2012	$	1,127	$	4,284	$	—	$	(2,539	)	$	2,872
Reserve for inventory excess and obsolescence for the year ended April 30:
2010	$	1,389	$	434	$	—	$	(632	)	$	1,191
2011	$	1,191	$	579	$	—	$	(529	)	$	1,241
2012	$	1,241	$	2,056	$	—	$	(543	)	$	2,754
Reserve for self-insured medical claims for the year ended April 30:
2010	$	680	$	5,170	$	—	$	(4,836	)	$	1,014
2011	$	1,014	$	7,322	$	—	$	(7,438	)	$	898
2012	$	898	$	9,082	$	—	$	(8,532	)	$	1,448