Note 3 - Loans Receivable (Details) - Impaired Loans (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, recorded investment	$ 11,718	$ 11,511
Loans with no related allowance, unpaid principal balance	11,894	11,511
Loans with no related allowance, average balance total loans	13,004	12,063
Loans with no related allowance, interest income recognized	429	573
Loans with an related allowance, recorded investment	152	479
Loans with an related allowance, unpaid principal balance	152	479
Loans, related allowance	146	173
Loans with an related allowance, average balance total loans	153	473
Loans with an related allowance, interest income recognized	3	17
Land Acquistion, Development and Commercial [Member]
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, recorded investment	1,282	1,550
Loans with no related allowance, unpaid principal balance	1,282	1,550
Loans with no related allowance, average balance total loans	1,346	1,550
Loans with no related allowance, interest income recognized	49	67
Real Estate Residential [Member]
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, recorded investment	480	412
Loans with no related allowance, unpaid principal balance	656	412
Loans with no related allowance, average balance total loans	480	415
Loans with no related allowance, interest income recognized	8	18
Loans with an related allowance, recorded investment		438
Loans with an related allowance, unpaid principal balance		438
Loans, related allowance		163
Loans with an related allowance, average balance total loans		439
Loans with an related allowance, interest income recognized		16
Real Estate Commercial [Member]
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, recorded investment	9,461	9,266
Loans with no related allowance, unpaid principal balance	9,461	9,266
Loans with no related allowance, average balance total loans	10,680	9,365
Loans with no related allowance, interest income recognized	351	442
Loans with an related allowance, recorded investment	152
Loans with an related allowance, unpaid principal balance	152
Loans, related allowance	146
Loans with an related allowance, average balance total loans	153
Loans with an related allowance, interest income recognized	3
Commercial, Industrial and Agricultural [Member]
Financing Receivable, Impaired [Line Items]
Loans with no related allowance, recorded investment	495	283
Loans with no related allowance, unpaid principal balance	495	283
Loans with no related allowance, average balance total loans	498	733
Loans with no related allowance, interest income recognized	21	46
Loans with an related allowance, recorded investment		41
Loans with an related allowance, unpaid principal balance		41
Loans, related allowance		10
Loans with an related allowance, average balance total loans		34
Loans with an related allowance, interest income recognized		$ 1