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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, 2013	Oct. 31, 2012
Options Exercised [Abstract]
Options Exercised (in Shares)	4,500	25,000
Cash Received from Option Exercises	$ 105	$ 584
Intrinsic Value of Options Exercised	$ 91	$ 548

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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.

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-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.

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

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