Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Number of shares issued during the period to an employee benefit plan, such as a defined contribution or defined benefit plan.

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Long-Term Incentive Awards (Details) - USD ($)	3 Months Ended						6 Months Ended			12 Months Ended
Long-Term Incentive Awards (Details) - USD ($)	Oct. 30, 2021	Jul. 31, 2021	Oct. 31, 2020	Oct. 31, 2020	Jul. 31, 2020	Jul. 27, 2019	Oct. 30, 2021	Oct. 29, 2021	Oct. 31, 2020	Apr. 30, 2021
Fiscal 2022 LTIP
Stock Based Compensation
Stock based compensation expense	$ 201,000		$ 0				$ 509,000		$ 0
Fiscal 2022 LTIP \| Performance based restricted stock units
Stock Based Compensation
Stock based compensation expense							13,111,000
Fiscal 2022 LTIP \| Performance based restricted stock units \| 100% Vested
Stock Based Compensation
Vesting (as a percentage)		100.00%
Fiscal 2022 LTIP \| Performance based restricted stock units \| 50% Vested
Stock Based Compensation
Vesting (as a percentage)		50.00%
Fiscal 2022 LTIP \| Performance based restricted stock units \| 250% Vested
Stock Based Compensation
Vesting (as a percentage)		250.00%
Fiscal 2021 LTIP \| Performance based restricted stock units
Stock Based Compensation
Stock based compensation expense	(572,000)		347,000				(507,000)		438,000
Exercisable period from grant date					3 years
Fiscal 2021 LTIP \| Performance based restricted stock units \| 100% Vested
Stock Based Compensation
Vesting (as a percentage)					100.00%
Fiscal 2021 LTIP \| Performance based restricted stock units \| 50% Vested
Stock Based Compensation
Vesting (as a percentage)					50.00%
Fiscal 2021 LTIP \| Performance based restricted stock units \| 250% Vested
Stock Based Compensation
Vesting (as a percentage)					250.00%
Fiscal 2021 LTIP \| Performance based restricted stock units \| Maximum
Stock Based Compensation
Stock based compensation expense							7,337,000
Fiscal 2020 LTIP \| Performance based restricted stock units
Stock Based Compensation
Stock based compensation expense	$ (617,000)		$ 264,000				(619,000)		345,000
Exercisable period from grant date						3 years
Fiscal 2020 LTIP \| Performance based restricted stock units \| 100% Vested
Stock Based Compensation
Vesting (as a percentage)						100.00%
Fiscal 2020 LTIP \| Performance based restricted stock units \| 50% Vested
Stock Based Compensation
Vesting (as a percentage)						50.00%
Fiscal 2020 LTIP \| Performance based restricted stock units \| 200% Vested
Stock Based Compensation
Vesting (as a percentage)						200.00%
Fiscal 2020 LTIP \| Performance based restricted stock units \| Maximum
Stock Based Compensation
Stock based compensation expense							$ 3,983,000
Fiscal 2019 LTIP \| Performance based restricted stock units
Stock Based Compensation
Stock based compensation expense				$ 189,000				$ 0	$ 264,000
Exercisable period from grant date										3 years
Issue of fully-vested shares of common stock to settle		12,101