XML 34 R20.htm IDEA: XBRL DOCUMENT v3.7.0.1
Stock-Based Compensation (Tables)
 3 Months Ended
Jul. 31, 2016
Share-based Compensation [Abstract]  
Stock-Based Compensation Expense Allocated
For the three-month periods ended July 31, 2017 and 2016, stock-based compensation expense was allocated as follows: 
 
 
Three Months Ended 
 July 31,

(in thousands)
 
2017

2016

Cost of sales and distribution
 
$
244

 
$
154

 
Selling and marketing expenses
 
246

 
257

 
General and administrative expenses
 
455

 
435

 
Stock-based compensation expense
 
$
945

 
$
846