Stock-Based Compensation (Tables)

3 Months Ended

Jul. 31, 2014

Share-based Compensation [Abstract]

Stock-Based Compensation Expense Allocated

For the three-month periods ended July 31, 2014 and 2013, stock-based compensation expense was allocated as follows: 

	Three Months Ended   July 31,
(in thousands)	2014		2013
Cost of sales and distribution	$	155	$	140
Selling and marketing expenses	256		219
General and administrative expenses	532		502
Stock-based compensation expense	$	943	$	861