Note 4 - Loans (Details) - Internal Credit Quality Indicators on Commercial and Industrial (USD $) In Thousands, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Note 4 - Loans (Details) - Internal Credit Quality Indicators on Commercial and Industrial [Line Items]
Commercial and Industrial	$ 63,993	$ 51,661
Grade One [Member]
Note 4 - Loans (Details) - Internal Credit Quality Indicators on Commercial and Industrial [Line Items]
Commercial and Industrial	2,151	3,462
Grade Two [Member]
Note 4 - Loans (Details) - Internal Credit Quality Indicators on Commercial and Industrial [Line Items]
Commercial and Industrial	1,122	208
Grade Three [Member]
Note 4 - Loans (Details) - Internal Credit Quality Indicators on Commercial and Industrial [Line Items]
Commercial and Industrial	8,291	7,210
Grade Four [Member]
Note 4 - Loans (Details) - Internal Credit Quality Indicators on Commercial and Industrial [Line Items]
Commercial and Industrial	41,678	28,293
Grade W [Member]
Note 4 - Loans (Details) - Internal Credit Quality Indicators on Commercial and Industrial [Line Items]
Commercial and Industrial	5,938	7,330
Grade Five [Member]
Note 4 - Loans (Details) - Internal Credit Quality Indicators on Commercial and Industrial [Line Items]
Commercial and Industrial	864	677
Grade Six [Member]
Note 4 - Loans (Details) - Internal Credit Quality Indicators on Commercial and Industrial [Line Items]
Commercial and Industrial	3,416	3,701
Grade Seven [Member]
Note 4 - Loans (Details) - Internal Credit Quality Indicators on Commercial and Industrial [Line Items]
Commercial and Industrial	480	732
Not Risk Rated [Member]
Note 4 - Loans (Details) - Internal Credit Quality Indicators on Commercial and Industrial [Line Items]
Commercial and Industrial	$ 53	$ 48