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Note 10 - Earnings Per Share (Details Textual)
9 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 422,658us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 620,392us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount