Warranty Reserves

9 Months Ended

Jan. 31, 2012

Warranty Reserves [Abstract]

Warranty Reserves

Warranty Reserves

Estimated warranty costs are accrued as revenues are recognized. Included in the warranty cost accruals are costs for basic warranties on products sold. A summary of product warranty reserve activity for the nine months ended January 31, 2012 is as follows:

(Amounts in thousands)
Balance at May 1, 2011	$	31
Additional reserves		142
Warranty reserve expense adjustments		(11	)
Charges incurred		(16	)
Balance at January 31, 2012	$	146