SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Apr. 30, 2013

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II-VALUATION AND QUALIFYING ACCOUNTS

SUPPLEMENTARY DATA
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:
2011	$	745	$	492	$	—	$	(598	)	$	639
2012	$	639	$	282	$	—	$	—		$	921
2013	$	921	$	15	$	—	$	—		$	936
Warranty reserve for the year ended April 30:
2011	$	804	$	1,449	$	—	$	(1,126	)	$	1,127
2012	$	1,127	$	4,284	$	—	$	(2,539	)	$	2,872
2013	$	2,872	$	2,169	$	—	$	(3,526	)	$	1,515
Reserve for inventory excess and obsolescence for the year ended April 30:
2011	$	1,191	$	579	$	—	$	(529	)	$	1,241
2012	$	1,241	$	2,056	$	—	$	(543	)	$	2,754
2013	$	2,754	$	1,461	$	—	$	(344	)	$	3,871
Reserve for self-insured medical claims for the year ended April 30:
2011	$	1,014	$	7,322	$	—	$	(7,438	)	$	898
2012	$	898	$	9,082	$	—	$	(8,532	)	$	1,448
2013	$	1,448	$	7,950	$	—	$	(7,970	)	$	1,428