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Note I - Stock Based Compensation (Details) - Options Exercised (USD $) In Thousands, except Share data, unless otherwise specified	6 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
Options Exercised [Abstract]
Options Exercised (in Shares)	88,750	4,500
Cash Received from Option Exercises	$ 1,546	$ 105
Intrinsic Value of Options Exercised	$ 2,129	$ 91

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The cash inflow associated with the amount received from holders exercising their stock options. This item inherently excludes any excess tax benefit, which the entity may have realized and reported separately.

+ References

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-Publisher FASB

-Name Accounting Standards Codification

-Glossary Financing Activities

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

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3



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