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Note 4 - Securities (Details) - Gross Gains and Losses on Investment Securities (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Note 4 - Securities (Details) - Gross Gains and Losses on Investment Securities [Line Items]      
Trading Account Securities Gains/(Losses) $ 12 $ 4 $ (11)
Available for Sale Securities      
Gross realized gains 363 44 28
Gross realized losses (29) 0 (65)
Net realized gains (losses) 334 44 (37)
Gains/Losses [Member]
     
Note 4 - Securities (Details) - Gross Gains and Losses on Investment Securities [Line Items]      
Trading Account Securities Gains/(Losses) $ 12 $ 4 $ (11)