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Share Repurchase (Details) - USD ($)	3 Months Ended
	Aug. 01, 2020	Jul. 27, 2019	Apr. 30, 2020	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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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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