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Note 2 - Earnings Per Share (Details Textual)
3 Months Ended 9 Months Ended
Nov. 30, 2014
Nov. 30, 2013
Nov. 30, 2014
Nov. 30, 2013
Earnings Per Share [Abstract]        
Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount 12,936us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 12,936us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 12,936us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount 42,511us-gaap_AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount