Note 3 - Loans Receivable (Detail) - Past Due and Non-accrual Status of Loans (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
30-59 Days Past Due	$ 60	$ 55
60-89 Days Past Due	1,442	999
90 Days or More Past Due	1,569	1,497
Total Past Due	3,071	2,551
Current	271,866	246,528
Total Loans	274,937	249,079
Nonaccrual Loans	2,689	2,032
Construction Residential [Member]
Current	5,036	3,695
Total Loans	5,036	3,695
Land Acquistion, Development and Commercial [Member]
60-89 Days Past Due	723	464
90 Days or More Past Due	1,034	632
Total Past Due	1,757	1,096
Current	18,441	22,815
Total Loans	20,198	23,911
Nonaccrual Loans	1,756	632
Real Estate Residential [Member]
60-89 Days Past Due	562	535
90 Days or More Past Due	184	179
Total Past Due	746	714
Current	68,945	57,356
Total Loans	69,691	58,070
Nonaccrual Loans	582	714
Real Estate Commercial [Member]
90 Days or More Past Due	236
Total Past Due	236
Current	109,066	102,312
Total Loans	109,302	102,312
Nonaccrual Loans	236
Commercial, Industrial and Agricultural [Member]
30-59 Days Past Due		55
60-89 Days Past Due	157
90 Days or More Past Due		43
Total Past Due	157	98
Current	42,225	36,199
Total Loans	42,382	36,297
Nonaccrual Loans		43
Equity Lines [Member]
30-59 Days Past Due	60
90 Days or More Past Due	115	643
Total Past Due	175	643
Current	20,329	18,375
Total Loans	20,504	19,018
Nonaccrual Loans	115	643
Consumer [Member]
Current	7,824	5,776
Total Loans	$ 7,824	$ 5,776