Note 4 - Loans (Details) - Major Classifications of Loans (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014		Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 826,428		$ 820,384
Less allowance for loan losses	(35,258)		(34,852)
Loans, net	791,170		785,532
Real Estate - Residential Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	180,514		188,455
Real Estate Construction [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	7,580		5,810
Commercial, Financial And Agricultural [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	295,545	[1]	288,593	[1]
Equity Lines [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	50,577	[2]	50,795	[2]
Consumer Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	8,239		9,007
Consumer Finance [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loans	$ 283,973		$ 277,724

[1] Includes the Corporation's real estate construction lending and consumer real estate lot lending.

[2] Includes the Corporation's commercial real estate lending, land acquisition and development lending, builder line lending and commercial business lending.