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Income Taxes (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 31, 2020	Oct. 26, 2019	Oct. 31, 2020	Oct. 26, 2019
Income taxes
Provision for income taxes	$ 2,491	$ 1,108	$ 3,698	$ 3,241
Effective tax benefit rate (as a percent)	17.70%	11.70%	13.90%	10.80%

X

- Definition

Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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