Warranty Reserves

6 Months Ended

Oct. 31, 2011

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 six months ended October 31, 2011 is as follows:

(Amounts in thousands)
Balance at May 1, 2011	$	31
Additional reserves		18
Warranty reserve expense adjustments		(11	)
Charges incurred		(12	)
Balance at October 31, 2011	$	26