Note 3 - Loans and Allowance for Loan Losses (Details) - Aging of Recorded Investment in Loans (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	$ 3,141	$ 4,260
60-89 Days Past Due	783	1,497
90 Days Or More Past Due	580	1,091
Total Past Due	4,504	6,848
Current	303,831	287,630
Recorded Investment In Loans	308,335	294,478
Residential Mortgage Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	2,515	3,160
60-89 Days Past Due	580	830
90 Days Or More Past Due	222	701
Total Past Due	3,317	4,691
Current	101,066	102,817
Recorded Investment In Loans	104,383	107,508
Land Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	187	162
60-89 Days Past Due	0	109
90 Days Or More Past Due	0	12
Total Past Due	187	283
Current	10,325	10,077
Recorded Investment In Loans	10,512	10,360
Residential Construction Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90 Days Or More Past Due	0	0
Total Past Due	0	0
Current	11,368	9,018
Recorded Investment In Loans	11,368	9,018
Commercial Real Estate Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	58	231
60-89 Days Past Due	43	500
90 Days Or More Past Due	0	49
Total Past Due	101	780
Current	80,056	75,886
Recorded Investment In Loans	80,157	76,666
Commercial Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	0	0
60-89 Days Past Due	0	0
90 Days Or More Past Due	189	189
Total Past Due	189	189
Current	29,582	21,814
Recorded Investment In Loans	29,771	22,003
Home Equity And Second Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	191	411
60-89 Days Past Due	66	24
90 Days Or More Past Due	132	132
Total Past Due	389	567
Current	36,828	34,702
Recorded Investment In Loans	37,217	35,269
Consumer Portfolio Segment [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
30-59 Days Past Due	190	296
60-89 Days Past Due	94	34
90 Days Or More Past Due	37	8
Total Past Due	321	338
Current	34,606	33,316
Recorded Investment In Loans	$ 34,927	$ 33,654