Loans and Allowance for Loan and Lease Losses (Average Recorded Investment Of Impaired Loans And Related Interest Income By Loan Portfolio Class) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014
Home Equity/ Home Equity Lines of Credit [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Average Recorded Investment	$ 208	$ 47
Impaired Loans with Allowance: Interest Income Recognized
Impaired Financing Receivable, Average Recorded Investment, Total	244	74
Impaired Financing Receivable, Interest Income Recognized, Total
Acquired with Credit Deterioration [Member] | Home Equity/ Home Equity Lines of Credit [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Average Recorded Investment	4
Impaired Loans with No Allowance: Interest Income Recognized
Excluded Acquired with Credit Deterioration [Member] | Home Equity/ Home Equity Lines of Credit [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Average Recorded Investment	32	27
Impaired Loans with No Allowance: Interest Income Recognized
Residential mortgages [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Average Recorded Investment	16
Impaired Loans with Allowance: Interest Income Recognized
Impaired Financing Receivable, Average Recorded Investment, Total	1,033	263
Impaired Financing Receivable, Interest Income Recognized, Total
Residential mortgages [Member] | Acquired with Credit Deterioration [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Average Recorded Investment	85
Impaired Loans with No Allowance: Interest Income Recognized
Residential mortgages [Member] | Excluded Acquired with Credit Deterioration [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Average Recorded Investment	932	263
Impaired Loans with No Allowance: Interest Income Recognized
Commercial and industrial [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Average Recorded Investment	583	74
Impaired Loans with Allowance: Interest Income Recognized
Impaired Financing Receivable, Average Recorded Investment, Total	669	264
Impaired Financing Receivable, Interest Income Recognized, Total
Commercial and industrial [Member] | Acquired with Credit Deterioration [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Average Recorded Investment	55
Impaired Loans with No Allowance: Interest Income Recognized
Commercial and industrial [Member] | Excluded Acquired with Credit Deterioration [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Average Recorded Investment	31	190
Impaired Loans with No Allowance: Interest Income Recognized
Commercial real estate [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Average Recorded Investment	5,177	7,059
Impaired Loans with Allowance: Interest Income Recognized
Impaired Financing Receivable, Average Recorded Investment, Total	7,445	9,756
Impaired Financing Receivable, Interest Income Recognized, Total
Commercial real estate [Member] | Acquired with Credit Deterioration [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Average Recorded Investment	335
Impaired Loans with No Allowance: Interest Income Recognized
Commercial real estate [Member] | Excluded Acquired with Credit Deterioration [Member]
Financing Receivable, Impaired [Line Items]
Impaired Loans with No Allowance: Average Recorded Investment	1,933	2,697
Impaired Loans with No Allowance: Interest Income Recognized