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Earnings Per Share	9 Months Ended
	Jan. 31, 2018
Earnings Per Share [Abstract]
Earnings Per Share	D. Earnings Per Share Basic earnings per share is based on the weighted average number of common shares outstanding during the three and nine month periods. Diluted earnings per share reflects the assumed exercise and conversion of restricted stock units and outstanding stock options under the Company’s Omnibus Incentive Plan, except when such awards have an anti-dilutive effect. There were no antidilutive awards outstanding at January 31, 2018. Stock options to purchase 39,200 shares were not included in the computation of diluted earnings per share for the three and nine month periods ended January 31, 2017, because the option exercise prices were greater than the average market price of the common shares during the quarter, and accordingly, such stock options would have an antidilutive effect.

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- Definition

The entire disclosure for earnings per share.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-URI http://asc.fasb.org/topic&trid=2144383

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