Investment Securities (Investments Classified by Contractual Maturity Date) (Details) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Investment Securities [Abstract]
Available for Sale: Amortized Cost: Due in 1 year or less	$ 625
Available for Sale: Amortized Cost: After 1 year to 5 years	80,644
Available for Sale: Amortized Cost: After 5 years to 10 years	73,388
Available for Sale: Amortized Cost: After 10 years	25,358
Available for Sale: Amortized Cost: Total	180,015
Available for Sale: Fair Value: Due in 1 year or less	699
Available for Sale: Fair Value: After 1 year to 5 years	82,291
Available for Sale: Fair Value: After 5 years to 10 years	70,729
Available for Sale: Fair Value: After 10 years	26,075
Available for Sale: Fair Value: Total	179,794	174,323
Held to Maturity: Amortized Cost: After 1 year to 5 years	66
Held to Maturity: Amortized Cost: Total	66
Held to Maturity: Fair Value: After 1 year to 5 years	69
Held to Maturity: Fair Value: Total	$ 69

Amount of investment in debt and equity securities categorized neither as held-to-maturity nor trading.

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