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Share Repurchase (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Oct. 30, 2021	Oct. 31, 2020	Oct. 30, 2021	Oct. 31, 2020	Apr. 30, 2021	Sep. 30, 2015
Share Repurchase
Stock Repurchase Program, Authorized Amount						$ 25,000
Shares repurchased and retired	0	0	0	0
Share authorized for future repurchases	$ 21,200		$ 21,200		$ 21,200

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Amount of stock repurchase plan authorized.

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Amount remaining of a stock repurchase plan authorized.

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Number of shares that have been repurchased during the period and are being held in treasury.

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