Note 4 - Loans (Details) - Loans on Nonaccrual Status (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	$ 5,316	$ 5,578
Real Estate - Residential Mortgage [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	2,153	1,996
Commercial, Financial And Agricultural [Member] | Commercial Real Estate Lending [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	1,702	1,486
Commercial, Financial And Agricultural [Member] | Builder Line Lending [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status		13
Commercial, Financial And Agricultural [Member] | Commercial Business Lending [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	374	374
Equity Lines [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	209	291
Consumer [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	232	231
Consumer Finance [Member]
Note 4 - Loans (Details) - Loans on Nonaccrual Status [Line Items]
Loans on nonaccrual status	$ 646	$ 1,187