Consolidated Balance Sheets (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data	Sep. 30, 2011	Dec. 31, 2010
ASSETS
Securities available for sale at estimated fair value	$ 481,731	$ 440,792
Securities held to maturity at amortized cost	14,627	17,272
Loans, net of allowance for loan losses	$ 42,150	$ 38,949
STOCKHOLDERS' EQUITY
Preferred stock, par value	$ 0.01	$ 0.01
Preferred stock, shares authorized	15,000,000	15,000,000
Preferred stock, shares outstanding
Common stock, par value	$ 0.20	$ 0.20
Common stock, shares authorized	25,000,000	25,000,000
Common stock, shares outstanding	17,694,297	17,665,908
Treasury stock, at cost	1,299,414	1,299,414