Shareholders' Equity (Schedule of Consolidated and Affiliate Bank Actual Capital and Minimum Required Levels) (Details) $ in Thousands	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Tier 1 (Core) Capital (to Average Assets)
Minimum capital conservation buffer	0.025
Bank
Total Capital (to Risk Weighted Assets)
Actual Amount of Total Capital (to Risk Weighted Assets)	$ 723,998	$ 680,695
Actual Ratio of Total Capital (to Risk Weighted Assets)	0.1476	0.1407
Minimum Required For Capital Adequacy Purposes: Amount, Total Capital	$ 392,402	$ 386,959
Minimum Required For Capital Adequacy Purposes: Ratio, Total Capital (to Risk Weighted Assets)	0.0800	0.0800
Minimum Required To Be Well-Capitalized Under Prompt Corrective Action Regulations: Amount, Total Capital (to Risk Weighted Assets)	$ 490,503	$ 483,698
Minimum Required To Be Well-Capitalized Under Prompt Corrective Action Regulations: Ratio, Total Capital (to Risk Weighted Assets)	0.1000	0.1000
Tier 1 (Core) Capital (to Risk Weighted Assets)
Actual Amount of Tier 1 Capital (to Risk Weighted Assets)	$ 688,696	$ 649,221
Actual Ratio of Tier 1 Capital (to Risk Weighted Assets)	0.1404	0.1342
Minimum Required For Capital Adequacy Purposes: Amount, Tier 1 Capital (to Risk Weighted Assets)	$ 294,302	$ 290,219
Minimum Required For Capital Adequacy Purposes: Ratio, Tier 1 Capital (to Risk Weighted Assets)	0.0600	0.0600
Minimum Required To Be Well-Capitalized Under Prompt Corrective Action Regulations: Amount, Tier 1 Capital (to Risk Weighted Assets)	$ 392,402	$ 386,959
Minimum Required To Be Well-Capitalized Under Prompt Corrective Action Regulations: Ratio, Tier 1 Capital (to Risk Weighted Assets)	0.0800	0.0800
Common Tier 1 (CET 1) Capital Ratio (to Risk Weighted Assets)
Actual Amount of Common Tier 1 Capital (to Risk Weighted Assets)	$ 688,696	$ 649,221
Actual Ratio of Common Tier 1 Capital (to Risk Weighted Assets)	14.04%	13.42%
Minimum Required For Capital Adequacy Purposes: Amount, Common Tier 1 Capital (to Risk Weighted Assets)	$ 220,726	$ 217,664
Minimum Required For Capital Adequacy Purposes: Ratio, Common Tier 1 Capital (to Risk Weighted Assets)	4.50%	4.50%
Minimum Required To Be Well-Capitalized Under Prompt Corrective Action Regulations: Amount, Common Tier 1 Capital (to Risk Weighted Assets)	$ 318,827	$ 314,404
Minimum Required To Be Well-Capitalized Under Prompt Corrective Action Regulations: Ratio, Common Tier 1 Capital (to Risk Weighted Assets)	6.50%	6.50%
Tier 1 (Core) Capital (to Average Assets)
Actual Amount of Tier 1 Capital (to Average Assets)	$ 688,696	$ 649,221
Actual Ratio of Tier 1 Capital (to Average Assets)	0.1103	0.1009
Minimum Required For Capital Adequacy Purposes: Amount, Tier 1 Capital (to Average Assets)	$ 249,642	$ 257,341
Minimum Required For Capital Adequacy Purposes: Ratio, Tier 1 Capital (to Average Assets)	0.0400	0.0400
Minimum Required To Be Well-Capitalized Under Prompt Corrective Action Regulations: Amount, Tier 1 Capital (to Average Assets)	$ 312,053	$ 321,677
Minimum Required To Be Well-Capitalized Under Prompt Corrective Action Regulations: Ratio, Tier 1 Capital (to Average Assets)	0.0500	0.0500
Minimum capital conservation buffer	0.025
Consolidated
Total Capital (to Risk Weighted Assets)
Actual Amount of Total Capital (to Risk Weighted Assets)	$ 810,391	$ 747,542
Actual Ratio of Total Capital (to Risk Weighted Assets)	0.1650	0.1545
Minimum Required For Capital Adequacy Purposes: Amount, Total Capital	$ 392,870	$ 387,024
Minimum Required For Capital Adequacy Purposes: Ratio, Total Capital (to Risk Weighted Assets)	0.0800	0.0800
Tier 1 (Core) Capital (to Risk Weighted Assets)
Actual Amount of Tier 1 Capital (to Risk Weighted Assets)	$ 735,089	$ 676,068
Actual Ratio of Tier 1 Capital (to Risk Weighted Assets)	0.1497	0.1397
Minimum Required For Capital Adequacy Purposes: Amount, Tier 1 Capital (to Risk Weighted Assets)	$ 294,652	$ 290,268
Minimum Required For Capital Adequacy Purposes: Ratio, Tier 1 Capital (to Risk Weighted Assets)	0.0600	0.0600
Common Tier 1 (CET 1) Capital Ratio (to Risk Weighted Assets)
Actual Amount of Common Tier 1 Capital (to Risk Weighted Assets)	$ 700,260	$ 641,690
Actual Ratio of Common Tier 1 Capital (to Risk Weighted Assets)	14.26%	13.26%
Minimum Required For Capital Adequacy Purposes: Amount, Common Tier 1 Capital (to Risk Weighted Assets)	$ 220,989	$ 217,701
Minimum Required For Capital Adequacy Purposes: Ratio, Common Tier 1 Capital (to Risk Weighted Assets)	4.50%	4.50%
Tier 1 (Core) Capital (to Average Assets)
Actual Amount of Tier 1 Capital (to Average Assets)	$ 735,089	$ 676,068
Actual Ratio of Tier 1 Capital (to Average Assets)	0.1175	0.1050
Minimum Required For Capital Adequacy Purposes: Amount, Tier 1 Capital (to Average Assets)	$ 250,162	$ 257,622
Minimum Required For Capital Adequacy Purposes: Ratio, Tier 1 Capital (to Average Assets)	0.0400	0.0400
Minimum capital conservation buffer	0.025