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Warranty Reserves (Tables)
 6 Months Ended
Oct. 28, 2017
Warranty Reserves  
Summary of warranty reserve activity

Warranty reserve activity is summarized as follows for the three and six months ended October 28, 2017 and October 29, 2016, respectively (in thousands):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Three Months Ended

 

Six Months Ended

 

 

    

 

October 28,

 

 

October 29,

 

 

October 28,

 

 

October 29,

    

 

 

 

2017

    

 

2016

    

 

2017

    

 

2016

 

Beginning balance

 

$

2,885

 

$

5,223

 

$

3,231

 

$

4,134

 

Warranty expense

 

 

719

 

 

144

 

 

1,166

 

 

336

 

Changes in estimates related to pre-existing warranties

 

 

 —

 

 

(179)

 

 

 —

 

 

1,228

 

Warranty costs settled

 

 

(520)

 

 

(1,500)

 

 

(1,313)

 

 

(2,010)

 

Ending balance

 

$

3,084

 

$

3,688

 

$

3,084

 

$

3,688