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Warranty Reserves (Tables)
 3 Months Ended
Jul. 28, 2018
Warranty Reserves  
Summary of warranty reserve activity

Warranty reserve activity is summarized as follows for the three months ended July 28, 2018 and July 29, 2017, respectively (in thousands):

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

 

 

 

July 28,

 

 

July 29,

    

 

    

 

2018

    

 

2017

 

Beginning balance

 

$

2,090

 

$

1,947

 

Warranty expense

 

 

611

 

 

279

 

Changes in estimates related to pre-existing warranties

 

 

712

 

 

 —

 

Warranty costs settled

 

 

(275)

 

 

(602)

 

Ending balance

 

$

3,138

 

$

1,624