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Warranty Reserves (Tables)
6 Months Ended
Oct. 26, 2019
Warranty Reserves  
Summary of warranty reserve activity

26, 2019 and October 27, 2018, respectively (in thousands):

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Three Months Ended

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Six Months Ended

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October 26,

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October 27,

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October 26,

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October 27,

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2019

    

2018

    

2019

    

2018

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Beginning balance

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$

1,849

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$

3,138

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$

1,704

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$

2,090

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Warranty expense

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534

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(249)

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1,219

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361

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Changes in estimates related to pre-existing warranties

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(189)

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(219)

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(189)

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493

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Warranty costs settled

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(319)

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(239)

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(859)

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(513)

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Ending balance

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$

1,875

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$

2,431

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$

1,875

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$

2,431

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