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Note 6 - Interest Rate Swaps (Details) - USD ($)
$ in Thousands
Dec. 31, 2015
Dec. 31, 2014
Note 6 - Interest Rate Swaps (Details) [Line Items]    
Deposit Assets $ 350 $ 350
Interest Rate Swap [Member]    
Note 6 - Interest Rate Swaps (Details) [Line Items]    
Derivative Asset, Notional Amount 10,727 11,684
Interest Rate Derivative Instruments Not Designated as Hedging Instruments at Fair Value, Net $ 29 $ 38