Unaudited Condensed Consolidated Statements of Comprehensive Income (Parentheticals) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Tax on net unrealized holding gain (loss) on available for sale securities arising during the period (in Dollars)	$ (503)	$ (188)
Tax on reclassification adjustment for prior period unrealized gain recognized during current period (in Dollars)	0	5
Tax on change in unfunded portion of postretirement benefit obligation (in Dollars)	$ 23	$ 36