Borrowed Funds (Schedule Of Borrowed Funds) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011
Short-term Debt	$ 70,362	$ 56,479
Securities Sold under Agreements to Repurchase [Member]
Short-term Debt	45,362	31,482
Short-term Debt, Average Outstanding Amount	36,823	29,701
Short-term Debt, Weighted Average Interest Rate	0.05%	0.11%
Federal Home Loan Bank Advances [Member]
Short-term Debt	25,000	25,000
Short-term Debt, Average Outstanding Amount	25,000	50,092
Short-term Debt, Weighted Average Interest Rate	3.48%	3.45%
Treasury, tax and loan note option [Member]
Short-term Debt		(3)
Short-term Debt, Average Outstanding Amount		$ 1,153