Warranty Reserves (Tables)

3 Months Ended

Jul. 31, 2014

Warranty Reserves [Abstract]

Product warranty reserve activity

A summary of product warranty reserve activity for the three months ended July 31, 2014 is as follows:

(Amounts in thousands)
Balance at May 1, 2014	$	188
Additional reserves		23
Charges incurred		(11	)
Balance at July 31, 2014	$	200