Product Warranty (Tables)

6 Months Ended

Oct. 31, 2014

Product Warranties Disclosures [Abstract]

Schedule Of Warranty Liability

The following is a reconciliation of the Company’s warranty liability, which is included in other accrued expenses on the balance sheet: 

	Six Months Ended
	October 31,
(in thousands)	2014			2013
Beginning balance at May 1	$	1,910		$	1,795
Accrual	7,777			5,950
Settlements	(7,084		)	(5,820		)
Ending balance at October 31	$	2,603		$	1,925