Loans (Retail Loan Portfolio Categorized By Payment Status) (Details) - USD ($) $ in Thousands	Dec. 31, 2015	Dec. 31, 2014
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 2,052,600	$ 1,881,071
Residential Mortgage [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	98,302	100,241
Residential Mortgage [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	96,977	99,047
Residential Mortgage [Member] | Non-Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,325	1,194
Home Equity [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	402,487	379,774
Home Equity [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	401,729	379,311
Home Equity [Member] | Non-Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	758	463
Consumer Indirect [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	652,494	636,357
Consumer Indirect [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	651,027	635,188
Consumer Indirect [Member] | Non-Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	1,467	1,169
Other Consumer [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	18,361	20,915
Other Consumer [Member] | Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	18,340	20,896
Other Consumer [Member] | Non-Performing [Member]
Financing Receivable, Recorded Investment [Line Items]
Total Loans	$ 21	$ 19