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Share Repurchase (Details) - USD ($) | 3 Months Ended |  |
--- | --- | --- | ---
Jul. 27, 2019 | Jul. 28, 2018 | Apr. 30, 2019 | Sep. 30, 2015
Share Repurchase |  |  |  |
Stock Repurchase Program, Authorized Amount |  |  |  | $ 25,000,000
Shares repurchased and retired | 0 | 0 |  |
Share authorized for future repurchases | $ 21,200,000 |  | $ 21,200,000 |

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