Note 8 - Loans and Allowance for Loan Losses (Details) - Major Classes of Loans (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 536,627	$ 501,752
Net unearned costs (fees)	55	(36)
Loans receivable	536,682	501,716
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	116,233	111,339
Commercial Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	18,439	15,929
Commercial:Secured by Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	196,796	190,602
Commercial Secured By Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	50,593	47,672
State And Political Subdivisions [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	43,167	33,773
Loans To Depository Institutions [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans		1,250
Indirect Lease Financing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	7,265	8,364
Retail:1-4 Family Residential Mortgages [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	35,743	29,730
Retail Home Equity Loans And Lines [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	64,132	59,977
Retail:Consumer [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 4,259	$ 3,116