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Note 8 - Short Term Borrowings (Details) - Short Term Borrowings (USD $)
Dec. 31, 2014
Dec. 31, 2013
Short-term Debt [Line Items]    
Short-term borrowings $ 422,000us-gaap_ShortTermBorrowings $ 258,000us-gaap_ShortTermBorrowings
Weighted average interest rate at December 31 1.93%us-gaap_ShortTermDebtWeightedAverageInterestRate 0.51%us-gaap_ShortTermDebtWeightedAverageInterestRate
Securities Sold under Agreements to Repurchase [Member]    
Short-term Debt [Line Items]    
Short-term borrowings 185,000us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember		 258,000us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_SecuritiesSoldUnderAgreementsToRepurchaseMember
Line of Credit [Member]    
Short-term Debt [Line Items]    
Short-term borrowings $ 237,000us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LineOfCreditMember		 $ 0us-gaap_ShortTermBorrowings
/ us-gaap_ShortTermDebtTypeAxis
= us-gaap_LineOfCreditMember