Note 3 - Loans and Allowance for Loan Losses (Details) - Loans and Allowances for Loan Losses (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Recorded Investment in Loans:
Principal loan balance	$ 306,871	$ 293,087
Accrued interest receivable	1,005	1,050
Net deferred loan origination fees and costs	459	341
Recorded investment in loans	308,335	294,478
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	5,147	6,920
Collectively evaluated for impairment	303,188	287,558
Acquired with deteriorated credit quality	0	0
Ending balance	308,335	294,478
Residential Mortgage Segment [Member]
Recorded Investment in Loans:
Principal loan balance	103,955	107,029
Accrued interest receivable	365	427
Net deferred loan origination fees and costs	63	52
Recorded investment in loans	104,383	107,508
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	1,297	2,040
Collectively evaluated for impairment	103,086	105,468
Acquired with deteriorated credit quality	0	0
Ending balance	104,383	107,508
Land Segment [Member]
Recorded Investment in Loans:
Principal loan balance	10,459	10,309
Accrued interest receivable	50	49
Net deferred loan origination fees and costs	3	2
Recorded investment in loans	10,512	10,360
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	107	120
Collectively evaluated for impairment	10,405	10,240
Acquired with deteriorated credit quality	0	0
Ending balance	10,512	10,360
Residential Construction Segment [Member]
Recorded Investment in Loans:
Principal loan balance	11,343	8,996
Accrued interest receivable	27	22
Net deferred loan origination fees and costs	(2)	0
Recorded investment in loans	11,368	9,018
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	11,368	9,018
Acquired with deteriorated credit quality	0	0
Ending balance	11,368	9,018
Commercial Real Estate Portfolio Segment [Member]
Recorded Investment in Loans:
Principal loan balance	79,991	76,496
Accrued interest receivable	198	202
Net deferred loan origination fees and costs	(32)	(32)
Recorded investment in loans	80,157	76,666
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	1,709	2,586
Collectively evaluated for impairment	78,448	74,080
Acquired with deteriorated credit quality	0	0
Ending balance	80,157	76,666
Commercial Portfolio Segment [Member]
Recorded Investment in Loans:
Principal loan balance	29,687	21,956
Accrued interest receivable	91	56
Net deferred loan origination fees and costs	(7)	(9)
Recorded investment in loans	29,771	22,003
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	1,864	1,898
Collectively evaluated for impairment	27,907	20,105
Acquired with deteriorated credit quality	0	0
Ending balance	29,771	22,003
Home Equity And Second Mortgage [Member]
Recorded Investment in Loans:
Principal loan balance	36,656	34,815
Accrued interest receivable	127	126
Net deferred loan origination fees and costs	434	328
Recorded investment in loans	37,217	35,269
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	170	276
Collectively evaluated for impairment	37,047	34,993
Acquired with deteriorated credit quality	0	0
Ending balance	37,217	35,269
Consumer Portfolio Segment [Member]
Recorded Investment in Loans:
Principal loan balance	34,780	33,486
Accrued interest receivable	147	168
Net deferred loan origination fees and costs	0	0
Recorded investment in loans	34,927	33,654
Recorded Investment in Loans as Evaluated for Impairment:
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	34,927	33,654
Acquired with deteriorated credit quality	0	0
Ending balance	$ 34,927	$ 33,654