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Treasury Shares	6 Months Ended
	Oct. 31, 2020
Equity [Abstract]
Treasury Shares	(13) Treasury Shares During each of the six months ended October 31, 2020 and 2019, no shares and 481 shares of common stock were purchased by the Company from employees to pay taxes related to the vesting of restricted stock.

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- References

No definition available.

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- Definition

The entire disclosure for treasury stock, including, but not limited to, average cost per share, description of share repurchase program, shares repurchased, shares held for each class of treasury stock.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 30
-URI http://asc.fasb.org/subtopic&trid=2208821

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