Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Principal Balance of Nonaccrual Loans (USD $)	Jun. 30, 2014	Dec. 31, 2013
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Principal Balance of Nonaccrual Loans [Line Items]
Nonaccrual loans	$ 5,741,000	$ 6,718,000
Commercial and Industrial [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Principal Balance of Nonaccrual Loans [Line Items]
Nonaccrual loans	824,000	1,501,000
Commercial Vacant Land and Land Development and Residential Construction Loan [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Principal Balance of Nonaccrual Loans [Line Items]
Nonaccrual loans	235,000	785,000
Commercial Real Estate Owner Occupied Loan [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Principal Balance of Nonaccrual Loans [Line Items]
Nonaccrual loans	640,000	389,000
Commercial Real Estate Non Owner Occupied Loan [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Principal Balance of Nonaccrual Loans [Line Items]
Nonaccrual loans	129,000	168,000
Commercial Real Estate Multi Family and Residential Rental Loan [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Principal Balance of Nonaccrual Loans [Line Items]
Nonaccrual loans	470,000	208,000
Commercial Portfolio Segment [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Principal Balance of Nonaccrual Loans [Line Items]
Nonaccrual loans	2,298,000	3,051,000
Retail Home Equity and Other [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Principal Balance of Nonaccrual Loans [Line Items]
Nonaccrual loans	772,000	788,000
Retail 1-4 Family Mortgages [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Principal Balance of Nonaccrual Loans [Line Items]
Nonaccrual loans	2,671,000	2,879,000
Retail Loan [Member]
Note 4 - Loans and Allowance for Loan Losses (Details) - Recorded Principal Balance of Nonaccrual Loans [Line Items]
Nonaccrual loans	$ 3,443,000	$ 3,667,000