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Warranty Reserves (Tables)
 6 Months Ended
Oct. 27, 2018
Warranty Reserves  
Summary of warranty reserve activity

Warranty reserve activity is summarized as follows for the three and six months ended October 27, 2018 and October 28, 2017, respectively (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

Six Months Ended

 

 

    

October 27,

 

 

October 28,

 

October 27,

 

October 28,

 

 

 

2018

    

2017

    

2018

    

2017

 

Beginning balance

 

$

3,138

 

$

1,624

 

$

2,090

 

$

1,947

 

Warranty expense

 

 

(249)

 

 

632

 

 

361

 

 

911

 

Changes in estimates related to pre-existing warranties

 

 

(219)

 

 

 —

 

 

493

 

 

 —

 

Warranty costs settled

 

 

(239)

 

 

(326)

 

 

(513)

 

 

(928)

 

Ending balance

 

$

2,431

 

$

1,930

 

$

2,431

 

$

1,930