Consolidated Statements of Operations and Comprehensive Income (Restated) (unadited) (Parenthetical) (USD $)	3 Months Ended		6 Months Ended
	Jun. 30, 2011	Jun. 30, 2010	Jun. 30, 2011	Jun. 30, 2010
Noninterest Expense:
Impairment loss on investment securities, other-than-temporary loss		$ 4,300,000		$ 3,900,000
Other comprehensive income, net of tax:
Unrealized gain (loss) on available for sale securities, and past service costs of employee benefit plans, income tax (benefit) expense	$ (282,000)	$ 385,000	$ (305,000)	$ 763,000