Consolidated Statements of Comprehensive Income (Parentheticals) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Available-for-sale reclassification to held-to-maturity, tax expense	$ 64	$ 64	$ 27
Reclassification adjustments for net (loss) gains realized in earnings, tax benefit (expense)	782	40	120
Available-for-sale Securities [Member]
Available-for-sale reclassification to held-to-maturity, tax expense			345
Reclassification adjustments for net (loss) gains realized in earnings, tax benefit (expense)	73	(411)	(1,573)
Held-to-maturity Securities [Member]
Available-for-sale reclassification to held-to-maturity, tax expense			$ 345