Unaudited Condensed Consolidated Statements of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net Income	$ 3,792	$ 3,309
Unrealized holding loss on available for sale securities arising during the period on securities held at end of period, net of tax of $(503) and $(188), respectively	(931)	(350)
Reclassification adjustment for prior period unrealized gain previously reported in other comprehensive income recognized during current period, net of tax of $- and $5, respectively		(10)
Change in unfunded portion of postretirement benefit obligation, net of tax of $23 and $36, respectively	44	65
Other comprehensive loss	(887)	(295)
Comprehensive income	$ 2,905	$ 3,014