Fair Value (Reconciliation Of The Level 3 Inputs For Financial Instruments Measured On A Recurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Obligations Of States And Political Subdivisions [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning		$ 2,756	$ 2,598	$ 2,751
Total gains/(losses), Included in earnings - realized
Total gains/(losses), Included in earnings - unrealized			(128)
Total gains/(losses), Included in other comprehensive income		93		98
Total gains/(losses), Settlement			(2,470)
Balance, ending		2,849		2,849
Equity Securities [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning	741		745
Total gains/(losses), Included in earnings - realized
Total gains/(losses), Included in earnings - unrealized
Total gains/(losses), Included in other comprehensive income	8		4
Balance, ending	749		749
Fair Value Swap [Member]
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance, beginning	(200)	(340)	(60)	(500)
Total gains/(losses), Included in earnings - realized
Total gains/(losses), Included in earnings - unrealized
Total gains/(losses), Settlement				160
Re-evaluation of fair value swap			(140)
Balance, ending	$ (200)	$ (340)	$ (200)	$ (340)