Note 6 - Other Borrowed Funds (Details Textual) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Federal Home Loan Bank, Advances, Maturities Summary, Fixed Rate	$ 32,952
Federal Home Loan Bank, Advances, Maturities Summary, Floating Rate	0
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	217,234
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds	143,081
Federal Home Loan Bank, Advances, Maturities Summary, Due in Next Twelve Months	$ 75,000
Debt, Weighted Average Interest Rate	2.79%	2.34%
Notes Payable, Related Parties	$ 360
Notes Payable to Bank	3,671
FHLB Line of Credit [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Maximum Amount Available	75,000
Federal Home Loan Bank, Advances, General Debt Obligations, Amount of Available, Unused Funds	75,000
Letters of Credit Outstanding, Amount	$ 41,200	$ 45,000
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	2.14%
Residential Mortgage [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	$ 295,597
Commercial Loan [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	68,056
FHLB Stock [Member]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	5,365
Federal Home Loan Bank Advances [Member]
Capital Lease Obligations	$ 48	$ 73

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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