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Commitments and Contingencies (Tables)
 12 Months Ended
Apr. 30, 2016
Commitments And Contingencies Disclosure [Abstract]  
Lease Commitments

As of April 30, 2016, the lease commitments were as follows (in thousands):

 

For the Year Ended April 30,

 

Amount

 

 

 

 

2017

 

$

 

2,122

 

 

2018

 

 

 

2,070

 

 

2019

 

 

 

1,923

 

 

2020

 

 

 

1,926

 

 

2021

 

 

 

1,833

 

 

Thereafter

 

 

 

4,569

 

 

 

 

$

 

14,443