Note 4 - Loans (Details) - Loans on Nonaccrual Status (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	$ 5,710	$ 5,578
Commercial Real Estate Lending [Member] | Commercial, Financial And Agricultural [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	1,904	1,486
Builder Line Lending [Member] | Commercial, Financial And Agricultural [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	13	13
Commercial Business Lending [Member] | Commercial, Financial And Agricultural [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	374	374
Real Estate - Residential Mortgage [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	2,040	1,996
Equity Lines [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	213	291
Consumer [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	229	231
Consumer Finance [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	$ 937	$ 1,187