Borrowings (Schedule of Short-term Debt) (Details) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2012	Dec. 31, 2011
Short-term Debt [Line Items]
Short-term Borrowings	$ 47,303	$ 45,962
Federal Home Loan Bank Stock	5,020
Line of Credit Facility, Current Borrowing Capacity	15,000
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt [Line Items]
Short-term Borrowings	$ 47,303	$ 45,962
Short-term Debt, Weighted Average Interest Rate	0.14%	0.20%