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NET INCOME PER SHARE
 12 Months Ended
Apr. 30, 2017
Earnings Per Share [Abstract]  
NET INCOME PER SHARE
14.
NET INCOME PER SHARE
 
Basic net income per share is computed using the weighted-average number of shares outstanding during the period. Diluted net income per share uses the weighted-average number of shares outstanding during the period plus the dilutive effect of stock-based compensation calculated using the treasury stock method. Weighted average shares used in the computation of basic and diluted net income per share are as follows:

(in thousands)
  
2017
    
2016
    
2015
  
weighted-average common shares outstanding, basic
    
12,312
      
12,302
      
12,217
  
dilutive effect of stock-based compensation
    
206
      
173
      
205
  
weighted-average common shares outstanding, diluted
    
12,518
      
12,475
      
12,422
  
 
All options to purchase shares of common stock were included in the computation of diluted net income for fiscal years 2017, 2016 and 2015, as the exercise price of the options was less than the average market price of common shares.