Stock-Based Compensation (Tables)

3 Months Ended

Jul. 31, 2015

Share-based Compensation [Abstract]

Stock-Based Compensation Expense Allocated

For the three-month periods ended July 31, 2015 and 2014, stock-based compensation expense was allocated as follows: 

	Three Months Ended   July 31,
(in thousands)	2015		2014
Cost of sales and distribution	$	158	$	155
Selling and marketing expenses	280		256
General and administrative expenses	525		532
Stock-based compensation expense	$	963	$	943