Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Net unrealized holding gain (loss) from available for sale securities arising during the period, tax	$ (5,338)	$ (4,049)
Reclassification adjustment of net gain from sale of available for sale securities included in income, tax	262	0
Net unrealized loss from unfunded defined benefit plan liability arising during the period, tax	159	0
Less: amortization of unrecognized net actuarial loss included in net periodic pension cost, tax	$ (16)	$ (13)