Note 4 - Allowance for Loan Losses (Details) - Loans by Credit Quality Indicators (USD $)	Dec. 31, 2013	Dec. 31, 2012
Construction loans:
Loans	$ 297,933,000	$ 274,937,000
Construction Residential [Member] | Pass [Member]
Construction loans:
Loans	6,768,000	5,036,000
Construction Residential [Member]
Construction loans:
Loans	6,768,000	5,036,000
Land Acquistion, Development and Commercial [Member] | Pass [Member]
Construction loans:
Loans	19,336,000	16,479,000
Land Acquistion, Development and Commercial [Member] | Substandard [Member]
Construction loans:
Loans	1,568,000	1,963,000
Land Acquistion, Development and Commercial [Member] | Substandard Nonaccrual [Member]
Construction loans:
Loans		1,756,000
Land Acquistion, Development and Commercial [Member]
Construction loans:
Loans	20,904,000	20,198,000
Real Estate Residential [Member] | Pass [Member]
Construction loans:
Loans	67,548,000	63,299,000
Real Estate Residential [Member] | Special Mention [Member]
Construction loans:
Loans	4,455,000	5,581,000
Real Estate Residential [Member] | Substandard [Member]
Construction loans:
Loans	223,000	229,000
Real Estate Residential [Member] | Substandard Nonaccrual [Member]
Construction loans:
Loans	708,000	582,000
Real Estate Residential [Member]
Construction loans:
Loans	72,934,000	69,691,000
Real Estate Commercial [Member] | Pass [Member]
Construction loans:
Loans	121,970,000	103,010,000
Real Estate Commercial [Member] | Special Mention [Member]
Construction loans:
Loans	510,000	2,479,000
Real Estate Commercial [Member] | Substandard [Member]
Construction loans:
Loans	3,620,000	3,577,000
Real Estate Commercial [Member] | Substandard Nonaccrual [Member]
Construction loans:
Loans		236,000
Real Estate Commercial [Member]
Construction loans:
Loans	126,100,000	109,302,000
Commercial, Industrial and Agricultural [Member] | Pass [Member]
Construction loans:
Loans	41,051,000	41,313,000
Commercial, Industrial and Agricultural [Member] | Special Mention [Member]
Construction loans:
Loans	96,000	131,000
Commercial, Industrial and Agricultural [Member] | Substandard [Member]
Construction loans:
Loans	815,000	938,000
Commercial, Industrial and Agricultural [Member] | Substandard Nonaccrual [Member]
Construction loans:
Loans	193,000
Commercial, Industrial and Agricultural [Member]
Construction loans:
Loans	42,155,000	42,382,000
Equity Lines [Member] | Pass [Member]
Construction loans:
Loans	20,316,000	20,364,000
Equity Lines [Member] | Special Mention [Member]
Construction loans:
Loans		25,000
Equity Lines [Member] | Substandard Nonaccrual [Member]
Construction loans:
Loans	58,000	115,000
Equity Lines [Member]
Construction loans:
Loans	20,374,000	20,504,000
Consumer [Member] | Pass [Member]
Construction loans:
Loans	8,668,000	7,824,000
Consumer [Member] | Substandard Nonaccrual [Member]
Construction loans:
Loans	30,000
Consumer [Member]
Construction loans:
Loans	8,698,000	7,824,000
Pass [Member]
Construction loans:
Loans	285,657,000	257,325,000
Special Mention [Member]
Construction loans:
Loans	5,061,000	8,216,000
Substandard [Member]
Construction loans:
Loans	6,226,000	6,707,000
Substandard Nonaccrual [Member]
Construction loans:
Loans	$ 989,000	$ 2,689,000