Allowance For Loan Losses And Credit Quality Of Financing Receivables (Average Recorded Investment And Income Recognized) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2011
With no recorded allowance, Average Recorded Investment	$ 10,247	$ 13,026
With no recorded allowance, Interest Income Recognized	83	170
With an allowance recorded, Average Recorded Investment	16,990	13,597
With an allowance recorded, Interest Income Recognized	79	145
Average Recorded Investment	27,237	26,623
Interest Income Recognized	162	315
Commercial And Industrial Loans [Member]
With no recorded allowance, Average Recorded Investment		10
With no recorded allowance, Interest Income Recognized		1
With an allowance recorded, Average Recorded Investment	189	81
Construction [Member]
With no recorded allowance, Average Recorded Investment	1,986	3,454
With an allowance recorded, Average Recorded Investment	1,405	1,980
With an allowance recorded, Interest Income Recognized	3
Commercial Real Estate [Member]
With no recorded allowance, Average Recorded Investment	6,505	8,608
With no recorded allowance, Interest Income Recognized	42	142
With an allowance recorded, Average Recorded Investment	14,610	10,899
With an allowance recorded, Interest Income Recognized	59	144
Residential Real Estate [Member]
With no recorded allowance, Average Recorded Investment	1,756	954
With no recorded allowance, Interest Income Recognized	41	27
With an allowance recorded, Average Recorded Investment	786	637
With an allowance recorded, Interest Income Recognized	$ 17	$ 1