Note 6 - Loans (Details) - Performing and Nonperforming Loans, Segregated by Class of Loans (USD $) In Thousands, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	$ 607,049	$ 597,995
Commercial Portfolio Segment [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	161,444	163,902
Commercial Portfolio Segment [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	4,303	6,527
Commercial Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	165,747	170,429
Commercial Real Estate Construction Financing Receivable [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	17,500	18,545
Commercial Real Estate Construction Financing Receivable [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	0	0
Commercial Real Estate Construction Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	17,500	18,545
Commercial Real Estate Other Receivable [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	279,480	274,821
Commercial Real Estate Other Receivable [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	12,560	14,539
Commercial Real Estate Other Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	292,040	289,360
Residential One To Four Family [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	63,024	62,474
Residential One To Four Family [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	7,360	8,217
Residential One To Four Family [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	70,384	70,691
Residential Real Estate and Home Equities [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	45,035	44,949
Residential Real Estate and Home Equities [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	484	513
Residential Real Estate and Home Equities [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	45,519	45,462
Consumer Portfolio Segment [Member] | Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	15,859	3,508
Consumer Portfolio Segment [Member] | Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	0	0
Consumer Portfolio Segment [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	15,859	3,508
Performing Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	582,342	568,199
Nonperforming Financing Receivable [Member]
Financing Receivable, Recorded Investment [Line Items]
Portfolio Loans	$ 24,707	$ 29,796