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Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Gains and Losses and Approximate Fair Values of Available-for-Sale Securities (USD $)
In Thousands, unless otherwise specified
Jun. 30, 2014
Dec. 31, 2013
Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Gains and Losses and Approximate Fair Values of Available-for-Sale Securities [Line Items]    
Amortized Cost $ 36,372 $ 38,888
Gross Unrealized Losses 35,686 37,701
Gross Unrealized Gains (686) (1,187)
US Government Agency Bonds [Member]
    
Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Gains and Losses and Approximate Fair Values of Available-for-Sale Securities [Line Items]    
Amortized Cost 7,500 7,500
Gross Unrealized Losses 7,344 7,079
Gross Unrealized Gains (156) (421)
US Government Agency Mortgage-Backed Securities [Member]
    
Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Gains and Losses and Approximate Fair Values of Available-for-Sale Securities [Line Items]    
Amortized Cost 19,872 22,388
Gross Unrealized Losses 19,498 21,752
Gross Unrealized Gains (374) (636)
Corporate Debt Securities [Member]
    
Note 2 - Investment Securities (Details) - Investment Securities - Gross Unrealized Gains and Losses and Approximate Fair Values of Available-for-Sale Securities [Line Items]    
Amortized Cost 9,000 9,000
Gross Unrealized Losses 8,844 8,870
Gross Unrealized Gains $ (156) $ (130)