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Note 5 - Accumulated Other Comprehensive Income (Details) - Significant Amounts Reclassified Out of Each Component of Accumulated Other Comprehensive Income (Loss) (USD $)
In Thousands, unless otherwise specified
3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Unrealized gains on available-for-sale securities        
$ $ 190 $ 0 $ 248 $ 175
(64) 0 (84) (60)
$ $ 126 $ 0 $ 164 $ 115