Note 5 - Loans - Outstanding Loan Balances (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Gross loans	$ 810,194	$ 804,211
Deferred fees and costs	1,446	1,324
Loans, net of deferred fees and costs	811,640	805,535
Allowance for loan and lease losses	(11,641)	(11,544)
Net loans	799,999	793,991
Commercial Portfolio Segment [Member]
Gross loans	145,635	153,844
Commercial Real Estate Portfolio Segment [Member]
Gross loans	516,196	496,742
Commercial Real Estate Portfolio Segment [Member] \| Construction Loans [Member]
Gross loans	46,228	57,771
Commercial Real Estate Portfolio Segment [Member] \| Commercial Non-owner Occupied [Member]
Gross loans	305,802	287,455
Commercial Real Estate Portfolio Segment [Member] \| Commercial Owner Occupied Loan [Member]
Gross loans	164,166	151,516
Residential Portfolio Segment [Member]
Gross loans	96,940	101,944
Residential Portfolio Segment [Member] \| Real Estate Loan [Member] \| Individual Tax Identification Number Loan [Member]
Gross loans	44,211	45,566
Residential Portfolio Segment [Member] \| Real Estate Loan [Member] \| Mortgage Receivable [Member]
Gross loans	19,710	20,425
Residential Portfolio Segment [Member] \| Home Equity Loan [Member]
Gross loans	33,019	35,953
Consumer Portfolio Segment [Member]
Gross loans	$ 51,423	$ 51,681

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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