Note 4 - Loans (Details) - Past Due Status of Loans (USD $)	Jun. 30, 2014		Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 30-59 days past due	$ 12,360,000		$ 21,912,000
Loans, 60-89 days past due	3,573,000		4,637,000
Loans, 90+ days past due	6,577,000		5,479,000
Loans, past due	22,510,000		32,028,000
Loans, current	803,918,000	[1]	788,356,000	[1]
Loans	826,428,000		820,384,000
Loans, 90+ days past due and accruing	250,000		75,000
Real Estate - Residential Mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 30-59 days past due	1,038,000		1,547,000
Loans, 60-89 days past due	919,000		952,000
Loans, 90+ days past due	1,482,000		1,547,000
Loans, past due	3,439,000		4,046,000
Loans, current	177,075,000	[1]	184,409,000	[1]
Loans	180,514,000		188,455,000
Loans, 90+ days past due and accruing	72,000
Real Estate Construction [Member] | Construction Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, current	4,408,000	[1]	3,728,000	[1]
Loans	4,408,000		3,728,000
Real Estate Construction [Member] | Consumer Lot Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, current	3,172,000	[1]	2,082,000	[1]
Loans	3,172,000		2,082,000
Commercial, Financial And Agricultural [Member] | Commercial Real Estate Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 30-59 days past due	904,000		5,567,000
Loans, 60-89 days past due	103,000		228,000
Loans, 90+ days past due	942,000		72,000
Loans, past due	1,949,000		5,867,000
Loans, current	184,268,000	[1]	162,255,000	[1]
Loans	186,217,000		168,122,000
Loans, 90+ days past due and accruing	178,000		72,000
Commercial, Financial And Agricultural [Member] | Land Acquisition And Development Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 90+ days past due	2,936,000		272,000
Loans, past due	2,936,000		272,000
Loans, current	30,710,000	[1]	25,368,000	[1]
Loans	33,646,000		25,640,000
Commercial, Financial And Agricultural [Member] | Builder Line Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, current	18,132,000	[1]	13,426,000	[1]
Loans	18,132,000		13,426,000
Commercial, Financial And Agricultural [Member] | Commercial Business Lending [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 30-59 days past due	364,000		306,000
Loans, 60-89 days past due	11,000		368,000
Loans, 90+ days past due	342,000		2,033,000
Loans, past due	717,000		2,707,000
Loans, current	56,833,000	[1]	78,698,000	[1]
Loans	57,550,000		81,405,000
Equity Lines [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 30-59 days past due	349,000		264,000
Loans, 60-89 days past due	17,000		45,000
Loans, 90+ days past due	35,000		173,000
Loans, past due	401,000		482,000
Loans, current	50,176,000	[1]	50,313,000	[1]
Loans	50,577,000		50,795,000
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 30-59 days past due	35,000		54,000
Loans, 60-89 days past due	32,000		46,000
Loans, 90+ days past due	194,000		195,000
Loans, past due	261,000		295,000
Loans, current	7,978,000	[1]	8,712,000	[1]
Loans	8,239,000		9,007,000
Loans, 90+ days past due and accruing			3,000
Consumer Finance [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Loans, 30-59 days past due	9,670,000		14,174,000
Loans, 60-89 days past due	2,491,000		2,998,000
Loans, 90+ days past due	646,000		1,187,000
Loans, past due	12,807,000		18,359,000
Loans, current	271,166,000	[1]	259,365,000	[1]
Loans	$ 283,973,000		$ 277,724,000

[1] For the purposes of the above table, "Current" includes loans that are 1-29 days past due.