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Note 4 - Debt and Equity Securities (Details) - Gross Gain Loss Realized from Available for Sale Securities - Jun. 30, 2015 - USD ($)
$ in Thousands
Total
Total
Gross Gain Loss Realized from Available for Sale Securities [Abstract]    
Gross gains from the sale of securities $ 233 $ 233
Gross losses from the sale of securities (169) (169)
Net gains from the sale of securities $ 64 $ 64