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Note 10 - Earnings Per Share (Detail)	Mar. 31, 2013	Mar. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number	201,380	268,540
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number	163,880	210,430

- Definition

The number of shares reserved for issuance under stock option agreements awarded under the plan that validly exist and are outstanding as of the balance sheet date, including vested options.

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