Fair Value Measurements and Fair Values of Financial Instruments (Quantitative Information About Level 3 Fair Value) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012
Fair Value, Assets and Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Abstract]
Impaired Loans	$ 19,876
Other real estate owned	$ 3,642