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Note 16 - Accumulated Other Comprehensive Income (Details) - Components of Accumulated Other Comprehensive Income (USD $)
In Thousands, unless otherwise specified
3 Months Ended 12 Months Ended
Dec. 31, 2013
Sep. 30, 2013
Jun. 30, 2013
Mar. 31, 2013
Dec. 31, 2012
Sep. 30, 2012
Jun. 30, 2012
Mar. 31, 2012
Dec. 31, 2013
Dec. 31, 2012
Accumulated Other Comprehensive Income (Loss) [Line Items]                    
Accumulated other comprehensive (loss) income $ (5,170)       $ 6,752       $ (5,170) $ 6,752
Tax effect (519) (604) (490) (733) (550) (540) (769) (750) (2,346) (2,609)
Accumulated other comprehensive (loss) income, net of tax (3,412)       4,456       (3,412) 4,456
Accumulated Net Unrealized Investment Gain (Loss) [Member]
                   
Accumulated Other Comprehensive Income (Loss) [Line Items]                    
Unrealized net holding (losses) gains on available-for-sale securities                 (4,281) 7,736
Unrealized losses on available-for-sale securities for which a portion of an other-than- temporary impairment loss has been recognized in earnings                 (889) (984)
Tax effect                 $ 1,758 $ (2,296)