Short-Term Borrowings (Narrative) (Details) (USD $)	Dec. 31, 2012	Dec. 31, 2011
Short-term Debt [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 169,525,000	$ 189,983,000
Federal Funds Available from Correspondent Banks	20,000,000
Parent Company [Member]
Short-term Debt [Line Items]
Line of Credit Facility, Remaining Borrowing Capacity	$ 5,000,000