Consolidated Statements of Comprehensive Income (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011	Sep. 30, 2012	Sep. 30, 2011
Consolidated Statements of Comprehensive Income [Abstract]
SECURITIES: Unrealized losses arising during the period, income taxes	$ 208	$ 507	$ 196	$ 1,058
SECURITIES: Reclassification adjustment for net gains included in net income, income taxes	0	0	2	0
PENSION: Change in plan assets and benefit obligations, income taxes	$ 56	$ 15	$ 170	$ 90