Note 4 - Allowance for Loan Losses (Details) - Allowance for Loan Losses (USD $)	9 Months Ended		12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Dec. 31, 2013
Construction loans:
Allowance for loan losses, beginning balance	$ 3,721,000	$ 3,790,000	$ 3,790,000
Allowance for loan losses, charge-offs	(445,000)		(575,000)
Allowance for loan losses, recoveries	44,000		381,000
Allowance for loan losses, provisions	202,000	125,000	125,000
Allowance for loan losses, ending balance	3,522,000		3,721,000
Allowance for loan losses, ending balance: individually evaluated for impairment	146,000		173,000
Allowance for loan losses, ending balance: collectively evaluated for impairment	3,376,000		3,548,000
Loans	319,364,000		297,933,000
Loans,ending balance: individually evaluated for impairment	11,870,000		11,990,000
Loans, ending balance: collectively evaluated for impairment	307,494,000		285,943,000
Construction Residential [Member]
Construction loans:
Allowance for loan losses, beginning balance	156,000	117,000	117,000
Allowance for loan losses, provisions	100,000		39,000
Allowance for loan losses, ending balance	256,000		156,000
Allowance for loan losses, ending balance: collectively evaluated for impairment	256,000		156,000
Loans	10,517,000		6,768,000
Loans, ending balance: collectively evaluated for impairment	10,517,000		6,768,000
Land Acquistion, Development and Commercial [Member]
Construction loans:
Allowance for loan losses, beginning balance	872,000	811,000	811,000
Allowance for loan losses, provisions	(162,000)		61,000
Allowance for loan losses, ending balance	710,000		872,000
Allowance for loan losses, ending balance: collectively evaluated for impairment	710,000		872,000
Loans	22,149,000		20,904,000
Loans,ending balance: individually evaluated for impairment	1,282,000		1,550,000
Loans, ending balance: collectively evaluated for impairment	20,867,000		19,354,000
Real Estate Residential [Member]
Construction loans:
Allowance for loan losses, beginning balance	867,000	725,000	725,000
Allowance for loan losses, charge-offs	(233,000)		(446,000)
Allowance for loan losses, recoveries	34,000		81,000
Allowance for loan losses, provisions	172,000		507,000
Allowance for loan losses, ending balance	840,000		867,000
Allowance for loan losses, ending balance: individually evaluated for impairment			163,000
Allowance for loan losses, ending balance: collectively evaluated for impairment	840,000		704,000
Loans	82,519,000		72,934,000
Loans,ending balance: individually evaluated for impairment	480,000		850,000
Loans, ending balance: collectively evaluated for impairment	82,039,000		72,084,000
Real Estate Commercial [Member]
Construction loans:
Allowance for loan losses, beginning balance	1,008,000	1,054,000	1,054,000
Allowance for loan losses, charge-offs			(88,000)
Allowance for loan losses, recoveries			298,000
Allowance for loan losses, provisions	(65,000)		(256,000)
Allowance for loan losses, ending balance	943,000		1,008,000
Allowance for loan losses, ending balance: individually evaluated for impairment	146,000
Allowance for loan losses, ending balance: collectively evaluated for impairment	797,000		1,008,000
Loans	132,691,000		126,100,000
Loans,ending balance: individually evaluated for impairment	9,613,000		9,266,000
Loans, ending balance: collectively evaluated for impairment	123,078,000		116,834,000
Commercial, Industrial and Agricultural [Member]
Construction loans:
Allowance for loan losses, beginning balance	327,000	459,000	459,000
Allowance for loan losses, charge-offs	(50,000)		(27,000)
Allowance for loan losses, provisions	4,000		(105,000)
Allowance for loan losses, ending balance	281,000		327,000
Allowance for loan losses, ending balance: individually evaluated for impairment			10,000
Allowance for loan losses, ending balance: collectively evaluated for impairment	281,000		317,000
Loans	39,762,000		42,155,000
Loans,ending balance: individually evaluated for impairment	495,000		324,000
Loans, ending balance: collectively evaluated for impairment	39,267,000		41,831,000
Equity Lines [Member]
Construction loans:
Allowance for loan losses, beginning balance	385,000	386,000	386,000
Allowance for loan losses, charge-offs	(136,000)
Allowance for loan losses, recoveries	8,000		2,000
Allowance for loan losses, provisions	137,000		(3,000)
Allowance for loan losses, ending balance	394,000		385,000
Allowance for loan losses, ending balance: collectively evaluated for impairment	394,000		385,000
Loans	23,523,000		20,374,000
Loans, ending balance: collectively evaluated for impairment	23,523,000		20,374,000
Consumer [Member]
Construction loans:
Allowance for loan losses, beginning balance	63,000	145,000	145,000
Allowance for loan losses, charge-offs	(26,000)		(14,000)
Allowance for loan losses, recoveries	2,000
Allowance for loan losses, provisions	15,000		(68,000)
Allowance for loan losses, ending balance	54,000		63,000
Allowance for loan losses, ending balance: collectively evaluated for impairment	54,000		63,000
Loans	8,203,000		8,698,000
Loans, ending balance: collectively evaluated for impairment	8,203,000		8,698,000
Unallocated [Member]
Construction loans:
Allowance for loan losses, beginning balance	43,000	93,000	93,000
Allowance for loan losses, provisions	1,000		(50,000)
Allowance for loan losses, ending balance	44,000		43,000
Allowance for loan losses, ending balance: collectively evaluated for impairment	$ 44,000		$ 43,000