Note 7 - Other Borrowed Funds (Details Textual) - USD ($)	Sep. 30, 2016	Dec. 31, 2015
Federal Home Loan Bank Advances [Member]
Capital Lease Obligations	$ 84,000	$ 117,000
Residential Mortgage [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	263,867,000
Commercial Loan [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	80,092,000
FHLB Stock [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	$ 5,365,000
Minimum [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	1.34%
Debt Instrument, Interest Rate, Stated Percentage	1.25%
Maximum [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	3.31%
Debt Instrument, Interest Rate, Stated Percentage	4.09%
Weighted Average [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank, Interest Rate	2.08%
FHLB Line of Credit [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	$ 75,000,000
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds	75,000,000
Letters of Credit Outstanding, Amount	47,000,000	$ 34,800,000
Federal Home Loan Bank, Advances, Maturities Summary, Floating Rate	0
Federal Home Loan Bank, Advances, Maturities Summary, Fixed Rate	26,663,000
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	189,639,000
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds	115,976,000
Federal Home Loan Bank, Advances, Maturities Summary, Due in Next Twelve Months	$ 75,000,000
Debt, Weighted Average Interest Rate	2.05%	1.38%
Notes Payable, Related Parties	$ 360,000
Notes Payable to Bank	$ 5,000,000

Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Discloses the single interest rate [if] applicable to the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

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Amount of the collateral pledged in support of federal home loan bank advances outstanding.

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Amount of advances from Federal Home Loan Bank (FHLBank) maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

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Including the current and noncurrent portions, the carrying value as of the balance sheet date of notes payable to banks, excluding mortgage notes, initially due beyond one year or beyond the operating cycle if longer.

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