Note 6 - Loans (Details) - Age Analysis of Past Due Loans (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	$ 1,520	$ 3,256
60-89 Days Past Due	3,590	461
Greater Than 90 Days	3,937	3,167
Total Past Due	9,047	6,884
Current	610,371	591,111
Total	619,418	597,995
Recorded Investment > 90 Days and Accruing	0	0
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	292	0
60-89 Days Past Due	2,830	0
Greater Than 90 Days	352	0
Total Past Due	3,474	0
Current	164,880	170,429
Total	168,354	170,429
Recorded Investment > 90 Days and Accruing	0	0
Commercial Real Estate Construction Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due		0
60-89 Days Past Due		0
Greater Than 90 Days		0
Total Past Due		0
Current	20,462	18,545
Total	20,462	18,545
Recorded Investment > 90 Days and Accruing	0	0
Commercial Real Estate Other Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	273	0
60-89 Days Past Due	391	0
Greater Than 90 Days	299	0
Total Past Due	963	0
Current	296,763	289,360
Total	297,726	289,360
Recorded Investment > 90 Days and Accruing	0	0
Residential One To Four Family [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	702	3,125
60-89 Days Past Due	369	436
Greater Than 90 Days	3,174	3,167
Total Past Due	4,245	6,728
Current	64,577	63,963
Total	68,822	70,691
Recorded Investment > 90 Days and Accruing	0	0
Residential Real Estate and Home Equities [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due	253	131
60-89 Days Past Due	0	25
Greater Than 90 Days	25	0
Total Past Due	278	156
Current	43,531	45,306
Total	43,809	45,462
Recorded Investment > 90 Days and Accruing	0	0
Consumer Other Financing Receivable [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due		0
60-89 Days Past Due	0	0
Greater Than 90 Days	87	0
Total Past Due	87	0
Current	20,158	3,508
Total	20,245	3,508
Recorded Investment > 90 Days and Accruing	$ 0	$ 0