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Shareholders' Equity and Share-Based Payment Arrangement, Option, Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	12 Months Ended
	Apr. 30, 2022	May 01, 2021	May 02, 2020
Stock Options
Outstanding at beginning of period (in shares)	2,227
Granted (in shares)	223
Canceled or forfeited (in shares)	(341)
Exercised (in shares)	(2)
Outstanding at ending of period (in shares)	2,107	2,227
Shares vested and expected to vest (in shares)	2,075
Exercisable (in shares)	1,371
Weighted Average Exercise Price Per Share
Outstanding at beginning of period (in dollars per share)	$ 8.53
Granted (in dollars per share)	5.66
Canceled or forfeited (in dollars per share)	9.17
Exercised (in dollars per share)	4.11
Outstanding at ending of period (in dollars per share)	8.13	$ 8.53
Shares vested and expected to vest, weighted average exercise price per share (in dollars per share)	8.17
Exercisable, weighted average exercise price per share (in dollars per share)	$ 9.47
Outstanding, weighted average remaining contractual life	4 years 11 months 23 days	4 years 9 months 29 days
Shares vested and expected to vest, weighted average remaining contractual life	4 years 11 months 1 day
Exercisable, weighted average remaining contractual life	3 years 3 months 3 days
Outstanding at beginning of period, aggregate intrinsic value		$ 843
Exercised, aggregate intrinsic value	$ 2	$ 0	$ 0

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- Definition

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares.

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For presentations that combine terminations, the number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan or that expired.

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Weighted average price of options that were either forfeited or expired.

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Gross number of share options (or share units) granted during the period.

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Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding.

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Number of options outstanding, including both vested and non-vested options.

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A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest exercisable or convertible options. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of fully vested and expected to vest options outstanding that can be converted into shares under option plan. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted-average exercise price, at which grantee can acquire shares reserved for issuance, for fully vested and expected to vest options outstanding. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Weighted average price at which option holders acquired shares when converting their stock options into shares.

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Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

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Weighted average remaining contractual term for vested portions of options outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Weighted average remaining contractual term for fully vested and expected to vest options outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, unvested options for which requisite service period has not been rendered but that are expected to vest based on achievement of performance condition, if forfeitures are recognized when they occur.

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Number of share options (or share units) exercised during the current period.

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