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Note 8 - Deposits (Details) (USD $)
In Millions, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Deposits Assets Disclosure Noncurrent [Abstract]    
Time Deposits, $100,000 or More $ 21.6us-gaap_TimeDeposits100000OrMore $ 25.4us-gaap_TimeDeposits100000OrMore
Related Party Deposit Liabilities $ 6.1us-gaap_RelatedPartyDepositLiabilities $ 7.9us-gaap_RelatedPartyDepositLiabilities