Loans And The Allowance For Credit Losses (Recorded Investment In Loans Past Due) (Details) - USD ($) $ in Thousands	Dec. 31, 2023	Jan. 01, 2023	Dec. 31, 2022	Jan. 01, 2022
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	$ 1,720,946		$ 1,672,369
Non-accruing Loans	27,224	$ 22,339	22,339	$ 17,394
Total Past Due	1,720,946		1,672,369
Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	1,681,478		1,643,519
Total Past Due	1,681,478		1,643,519
30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	10,310		3,185
Total Past Due	10,310		3,185
60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	1,800		891
Total Past Due	1,800		891
90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	134		2,435
Total Past Due	134		2,435
Commercial And Industrial [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	223,089		250,095
Non-accruing Loans	1,839	2,625	2,625	4,919
Total Past Due	223,089		250,095
Commercial And Industrial [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	220,602		246,412
Total Past Due	220,602		246,412
Commercial And Industrial [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	518		235
Total Past Due	518		235
Commercial And Industrial [Member] | 60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	130		684
Total Past Due	130		684
Commercial And Industrial [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance			139
Total Past Due			139
Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	446,851
Total Past Due	446,851
Commercial Real Estate Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	969,861
Total Past Due	969,861
Home Equities [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	80,156
Non-accruing Loans	515	563	563	755
Total Past Due	80,156
Consumer And Other Loans [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	989		657
Total Past Due	989		657
Consumer And Other Loans [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	959		652
Total Past Due	959		652
Consumer And Other Loans [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	27		3
Total Past Due	27		3
Consumer And Other Loans [Member] | 60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	3		1
Total Past Due	3		1
Consumer And Other Loans [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance			1
Total Past Due			1
Total Real Estate Loans [Member] | Commercial Real Estate Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Non-accruing Loans	19,000	6,648	6,648	5,758
Total Real Estate Loans [Member] | Home Equities [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	80,156		80,948
Non-accruing Loans	515		563
Total Past Due	80,156		80,948
Total Real Estate Loans [Member] | Home Equities [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	77,080		79,320
Total Past Due	77,080		79,320
Total Real Estate Loans [Member] | Home Equities [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	1,906		759
Total Past Due	1,906		759
Total Real Estate Loans [Member] | Home Equities [Member] | 60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	655		206
Total Past Due	655		206
Total Real Estate Loans [Member] | Home Equities [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance			100
Total Past Due			100
Mortgages [Member] | Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	443,587		439,708
Non-accruing Loans	4,602	3,738	3,738	3,020
Total Past Due	443,587		439,708
Mortgages [Member] | Residential Mortgages [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	437,471		434,393
Total Past Due	437,471		434,393
Mortgages [Member] | Residential Mortgages [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	1,173		1,105
Total Past Due	1,173		1,105
Mortgages [Member] | Residential Mortgages [Member] | 60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	341
Total Past Due	341
Mortgages [Member] | Residential Mortgages [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance			472
Total Past Due			472
Mortgages [Member] | Commercial Real Estate Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	854,869		779,677
Non-accruing Loans	19,000		6,648
Total Past Due	854,869		779,677
Mortgages [Member] | Commercial Real Estate Mortgages [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	831,375		771,871
Total Past Due	831,375		771,871
Mortgages [Member] | Commercial Real Estate Mortgages [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	4,360		1,083
Total Past Due	4,360		1,083
Mortgages [Member] | Commercial Real Estate Mortgages [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	134		75
Total Past Due	134		75
Construction [Member] | Residential Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	3,264		502
Total Past Due	3,264		502
Construction [Member] | Residential Mortgages [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	3,264		3,502
Total Past Due	3,264		3,502
Construction [Member] | Commercial Real Estate Mortgages [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	114,992		117,782
Non-accruing Loans	1,268	$ 8,765	8,765	$ 2,942
Total Past Due	114,992		117,782
Construction [Member] | Commercial Real Estate Mortgages [Member] | Current [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	110,727		107,369
Total Past Due	110,727		107,369
Construction [Member] | Commercial Real Estate Mortgages [Member] | 30-59 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	2,326
Total Past Due	2,326
Construction [Member] | Commercial Real Estate Mortgages [Member] | 60-89 Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance	671
Total Past Due	$ 671
Construction [Member] | Commercial Real Estate Mortgages [Member] | 90+ Days [Member]
Financing Receivable, Recorded Investment, Past Due [Line Items]
Balance			1,648
Total Past Due			$ 1,648