Note 6 - Loans (Details) - Performing and nonperforming loans, segregated by class of loans, are as follows: (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	$ 619,418	$ 597,995
Commercial Portfolio Segment [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	163,979	163,902
Commercial Portfolio Segment [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	4,375	6,527
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	168,354	170,429
Commercial Real Estate Construction Financing Receivable [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	20,462	18,545
Commercial Real Estate Construction Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	20,462	18,545
Commercial Real Estate Other Receivable [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	282,128	274,821
Commercial Real Estate Other Receivable [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	15,598	14,539
Commercial Real Estate Other Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	297,726	289,360
Residential One To Four Family [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	61,883	62,474
Residential One To Four Family [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	6,939	8,217
Residential One To Four Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	68,822	70,691
Residential Real Estate and Home Equities [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	43,330	44,949
Residential Real Estate and Home Equities [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	479	513
Residential Real Estate and Home Equities [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	43,809	45,462
Consumer Portfolio Segment [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	20,158	3,508
Consumer Portfolio Segment [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	87
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	20,245	3,508
Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	591,940	568,199
Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Financing Receivable	$ 27,478	$ 29,796