Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators (USD $) In Thousands, unless otherwise specified	Jun. 30, 2014	Dec. 31, 2013	Jun. 30, 2013
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	$ 753,049	$ 767,513	$ 741,355
Single-family Real Estate, Revolving, Open-end Loans [Member] | Performing Financing Receivable [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	73,727	69,121
Single-family Real Estate, Revolving, Open-end Loans [Member] | Nonperforming Financing Receivable [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	583	797
Single-family Real Estate, Revolving, Open-end Loans [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	74,310	69,918
Single Family Residential Closed End First Lien [Member] | Performing Financing Receivable [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	96,889	101,100
Single Family Residential Closed End First Lien [Member] | Nonperforming Financing Receivable [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	2,433	3,176
Single Family Residential Closed End First Lien [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	99,322	104,276
Single Family Residential Closed End Junior Lien [Member] | Performing Financing Receivable [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	3,442	3,802
Single Family Residential Closed End Junior Lien [Member] | Nonperforming Financing Receivable [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	105	129
Single Family Residential Closed End Junior Lien [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	3,547	3,931
Single Family Residential [Member] | Performing Financing Receivable [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	174,058	174,023
Single Family Residential [Member] | Nonperforming Financing Receivable [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	3,121	4,102
Single Family Residential [Member]
Note 5 - Loans (Details) - Mortgage Loan by Credit Quality Indicators [Line Items]
Gross Loans	$ 177,179	$ 178,125	$ 170,735