Note 8 - Loans and Allowance for Loan Losses (Details) - Major Classes of Loans - USD ($) $ in Thousands	Sep. 30, 2015	Dec. 31, 2014
Commercial:
Loans	$ 582,225	$ 555,251
Net unearned costs (fees)	30	31
Loans receivable	582,255	555,282
Commercial Portfolio Segment [Member] \| Commercial and Industrial Loans [Member]
Commercial:
Loans	121,217	118,845
Commercial Portfolio Segment [Member] \| Construction Loans [Member]
Commercial:
Loans	25,681	23,471
Commercial Portfolio Segment [Member] \| Secured by Commercial Real Estate [Member]
Commercial:
Loans	212,962	203,534
Commercial Portfolio Segment [Member] \| Secured by Residential Real Estate [Member]
Commercial:
Loans	57,755	53,077
State and Political Subdivisions Portfolio Segment [Member]
Commercial:
Loans	41,443	44,104
Finance Leases Portfolio Segment [Member]
Commercial:
Loans	9,858	7,685
Retail Portfolio Segment [Member]
Commercial:
Loans	113,309	104,535
Retail Portfolio Segment [Member] \| 1-4 Family Residential Mortgages [Member]
Commercial:
Loans	41,691	37,147
Retail Portfolio Segment [Member] \| Home Equity Loan [Member]
Commercial:
Loans	67,341	63,213
Retail Portfolio Segment [Member] \| Consumer Loans [Member]
Commercial:
Loans	$ 4,277	$ 4,175

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Amount before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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