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Note 13 - Provision For Income Taxes (Details)	9 Months Ended
Note 13 - Provision For Income Taxes (Details)	Feb. 28, 2013
Effective Income Tax Rate, Continuing Operations	25.00%

- Definition

A ratio calculated by dividing the reported amount of income tax expense attributable to continuing operations for the period by GAAP-basis pretax income from continuing operations.

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