Consolidated Statements of Changes in Stockholders' Equity [Parenthetical] (USD $) In Thousands, except Share data, unless otherwise specified	12 Months Ended
	Dec. 31, 2011	Dec. 31, 2010
Unrealized losses on securities available for sale Otherthan temporary impairment,taxes (in dollars)		$ (1)
Available-for-sale Securities, Change in Net Unrealized Holding Gain (Loss), Net of Tax	1,430	(64)
Funded status of defined benefit plan, tax (in dollars)	$ (300)	$ (109)
Treasury stock reissued (in shares)		26,000
Common stock dividend declared (in dollars per share)	$ 0.64	$ 0.56
Common stock issued (in shares)	290,004
Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures (in shares)	4,500