Consolidated Statements of Income (Unaudited) (Parentheticals) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2013	Jun. 30, 2012	Jun. 30, 2013	Jun. 30, 2012
Income Statement [Abstract]
Reclassifications for unrealized net gains on available-for-sale securities	$ (4,417)	$ (788)	$ (5,653)	$ (3,020)
Reclassification adjustment for employee benefit costs included in expense	1,243	1,732	2,485	2,375
Reclassifications adjustments - tax	$ 1,111	$ (331)	$ 1,109	$ 224