Note 3 - Loans (Details) - Past Due Status of Loans (USD $)	Jun. 30, 2013	Dec. 31, 2012
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$ 15,200,000	$ 20,296,000
60-89 Days Past Due	2,579,000	3,004,000
90+ Days Past Due	5,847,000	7,107,000
Total Past Due	23,626,000	30,407,000
Current	649,700,000	645,783,000
Total Loans	673,326,000	676,190,000
90+ Days Past Due and Accruing	106,000
Construction Lending (Member) | Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	3,725,000	3,157,000
Total Loans	3,725,000	3,157,000
Consumer Lot Lending [Member] | Real Estate Construction [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	1,605,000	1,905,000
Total Loans	1,605,000	1,905,000
Commercial real estate lending [Member] | commercial, financial and agricultural (Member)
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	4,864,000	7,650,000
60-89 Days Past Due	121,000	496,000
90+ Days Past Due	3,216,000	324,000
Total Past Due	8,201,000	8,470,000
Current	118,472,000	111,177,000
Total Loans	126,673,000	119,647,000
Land acquisition and development lending [Member] | commercial, financial and agricultural (Member)
Financing Receivable, Recorded Investment, Past Due [Line Items]
90+ Days Past Due		5,234,000
Total Past Due		5,234,000
Current	19,396,000	28,903,000
Total Loans	19,396,000	34,137,000
Builder Line Lending [Member] | commercial, financial and agricultural (Member)
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	12,214,000	15,948,000
Total Loans	12,214,000	15,948,000
Commercial Business Lending [Member] | commercial, financial and agricultural (Member)
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	19,000	794,000
90+ Days Past Due	481,000	40,000
Total Past Due	500,000	834,000
Current	34,631,000	34,486,000
Total Loans	35,131,000	35,320,000
Real Estate - Residential Mortgage (Member)
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	823,000	1,402,000
60-89 Days Past Due	561,000	456,000
90+ Days Past Due	1,193,000	641,000
Total Past Due	2,577,000	2,499,000
Current	148,794,000	146,758,000
Total Loans	151,371,000	149,257,000
90+ Days Past Due and Accruing	106,000
Equity Lines (Member)
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	239,000	270,000
60-89 Days Past Due	106,000
90+ Days Past Due	89,000	22,000
Total Past Due	434,000	292,000
Current	32,670,000	33,032,000
Total Loans	33,104,000	33,324,000
consumer (Member)
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	71,000	69,000
90+ Days Past Due	188,000	191,000
Total Past Due	259,000	260,000
Current	4,992,000	5,049,000
Total Loans	5,251,000	5,309,000
consumer finance (Member)
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	9,184,000	10,111,000
60-89 Days Past Due	1,791,000	2,052,000
90+ Days Past Due	680,000	655,000
Total Past Due	11,655,000	12,818,000
Current	273,201,000	265,368,000
Total Loans	$ 284,856,000	$ 278,186,000