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Note 18 - Commitments and Contingencies (Details) - Commitments to Extend Credit - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Loan commitments:    
Fixed rate $ 4,007 $ 351
Adjustable rate 3,854 7,062
Commitments to extend credit 73,428 59,066
Unused Lines of Credit On Credit Cards [Member]    
Loan commitments:    
Commitments to extend credit 4,429 4,732
Undisbursed Commercial and Personal Lines of Credit [Member]    
Loan commitments:    
Commitments to extend credit 29,359 19,390
Undisbursed Portion of Construction Loans in Process [Member]    
Loan commitments:    
Commitments to extend credit 4,869 3,325
Undisbursed Portion of Home Equity Lines of Credit [Member]    
Loan commitments:    
Commitments to extend credit $ 26,910 $ 24,206