Note 8 - Federal Home Loan Bank Borrowings (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Note 8 - Federal Home Loan Bank Borrowings (Details) [Line Items]
Advances from Federal Home Loan Banks	$ 22,000	$ 20,000
Real Estate Loans [Member]
Note 8 - Federal Home Loan Bank Borrowings (Details) [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	30,700
Investment Securities [Member]
Note 8 - Federal Home Loan Bank Borrowings (Details) [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	1,400
Federal Home Loan Bank Stock [Member]
Note 8 - Federal Home Loan Bank Borrowings (Details) [Line Items]
Federal Home Loan Bank, Advances, General Debt Obligations, Disclosures, Collateral Pledged	1,300
Federal Home Loan Bank of Atlanta [Member]
Note 8 - Federal Home Loan Bank Borrowings (Details) [Line Items]
Advances from Federal Home Loan Banks	22,000	$ 20,000
Federal Home Loan Bank of Atlanta [Member] | Convertible Debt [Member]
Note 8 - Federal Home Loan Bank Borrowings (Details) [Line Items]
Advances from Federal Home Loan Banks	4,000
Federal Home Loan Bank of Atlanta [Member] | Fixed Rate Advance [Member]
Note 8 - Federal Home Loan Bank Borrowings (Details) [Line Items]
Advances from Federal Home Loan Banks	$ 18,000