Stock-Based Compensation (Tables)

6 Months Ended

Oct. 31, 2013

Stock-Based Compensation [Abstract]

Stock-Based Compensation Expense Allocated

	Three Months Ended				Six Months Ended
	October 31,				October 31,
(in thousands)		2013		2012		2013		2012
Cost of sales and distribution	$	102	$	131	$	242	$	308
Selling and marketing expenses		162		189		381		430
General and administrative expenses		605		456		1,107		1,023
Stock-based compensation expense	$	869	$	776	$	1,730	$	1,761