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Note 14 - Commitments (Details) - Outstanding Commitments and Contingent Liabilities (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Note 14 - Commitments (Details) - Outstanding Commitments and Contingent Liabilities [Line Items]    
Outstanding Commitments $ 102,461us-gaap_OtherCommitment $ 125,670us-gaap_OtherCommitment
Commitments to Extend Credit [Member]    
Note 14 - Commitments (Details) - Outstanding Commitments and Contingent Liabilities [Line Items]    
Outstanding Commitments 97,947us-gaap_OtherCommitment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommitmentsToExtendCreditMember		 120,861us-gaap_OtherCommitment
/ us-gaap_FinancialInstrumentAxis
= us-gaap_CommitmentsToExtendCreditMember
Financial Standby Letter of Credit [Member]    
Note 14 - Commitments (Details) - Outstanding Commitments and Contingent Liabilities [Line Items]    
Outstanding Commitments $ 4,514us-gaap_OtherCommitment
/ us-gaap_GuaranteeObligationsByNatureAxis
= us-gaap_FinancialStandbyLetterOfCreditMember		 $ 4,809us-gaap_OtherCommitment
/ us-gaap_GuaranteeObligationsByNatureAxis
= us-gaap_FinancialStandbyLetterOfCreditMember