Allowance For Credit Losses (Non-Performing Assets) (Details) (USD $) In Thousands, unless otherwise specified	9 Months Ended	12 Months Ended
	Sep. 30, 2012	Dec. 31, 2011
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	$ 7,108	$ 7,432
Loans 90 day past due and still accruing	2,721	210
Total non-performing loans	9,829	7,642
Other real estate owned & other repossessed property	3,864	3,974
Total non-performing assets	13,693	11,616
Residential mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	2,201	1,873
Loans 90 day past due and still accruing	60
Commercial mortgage [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	320	2,114
Loans 90 day past due and still accruing	2,485	210
Commercial Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	4,391	3,233
Leases financing [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	33	61
Consumer [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accrual loans	$ 163	$ 151