Note 6 - Loans (Details) - Age Analysis of Past Due Loans (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$ 1,772	$ 3,256
60-89 Days Past Due	2,190	461
Greater Than 90 Days	11,986	3,167
Total Past Due	15,948	6,884
Current	633,747	591,111
Total	649,695	597,995
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	655
60-89 Days Past Due	1,950
Total Past Due	2,605
Current	157,419	170,429
Total	160,024	170,429
Commercial Real Estate Construction Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	25,579	18,545
Total	25,579	18,545
Commercial Real Estate Other Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	67
Greater Than 90 Days	8,516
Total Past Due	8,583
Current	313,510	289,360
Total	322,093	289,360
Residential One To Four Family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	767	3,125
60-89 Days Past Due	240	436
Greater Than 90 Days	3,445	3,167
Total Past Due	4,452	6,728
Current	63,132	63,963
Total	67,584	70,691
Residential Real Estate and Home Equities [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	283	131
60-89 Days Past Due		25
Greater Than 90 Days	25
Total Past Due	308	156
Current	44,742	45,306
Total	45,050	45,462
Consumer Other Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Current	29,365	3,508
Total	$ 29,365	$ 3,508