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Warranty Reserves (Tables)
12 Months Ended
Apr. 30, 2020
Warranty Reserves  
Summary of warranty reserve activity

April 30,

    

2020

    

2019

 

(In thousands)

 

Beginning balance

$

1,704

$

2,090

Warranty expense

 

2,258

 

211

Changes in estimates related to pre-existing warranties

(189)

491

Warranty costs settled

 

(1,758)

 

(1,088)

Ending balance

$

2,015

$

1,704