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Warranty Reserves (Tables)
 12 Months Ended
Apr. 30, 2017
Warranty Reserves  
Summary of warranty reserve activity

 

 

 

 

 

 

 

 

 

 

 

April 30,

 

 

    

2017

    

2016

 

 

 

(In thousands)

 

Beginning balance

 

$

4,134

 

$

2,653

 

Warranty expense

 

 

1,428

 

 

4,516

 

Changes in estimates related to pre-existing warranties

 

 

1,651

 

 

(424)

 

Warranty costs settled

 

 

(3,982)

 

 

(2,611)

 

Ending balance

 

$

3,231

 

$

4,134