Revenue from Contracts with Customers (Disaggregation by Timing of Revenue Recognition) (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Revenue from contracts in scope of Topic 606		$ 12,703	$ 11,204	$ 38,243	$ 32,388
Wealth Management Revenues
Revenue from contracts in scope of Topic 606	[1]	10,455	8,954	30,778	26,248
Wealth Management Revenues | Transferred over Time [Member]
Revenue from contracts in scope of Topic 606		10,455	8,954	30,778	26,248
Card Interchange Fees
Revenue from contracts in scope of Topic 606	[1]	1,265	1,161	3,714	3,139
Card Interchange Fees | Transferred at Point in Time [Member]
Revenue from contracts in scope of Topic 606		1,265	1,161	3,714	3,139
Service Charges on Deposit Accounts
Revenue from contracts in scope of Topic 606	[1]	673	598	1,917	1,975
Service Charges on Deposit Accounts | Transferred at Point in Time [Member]
Revenue from contracts in scope of Topic 606		531	447	1,516	1,488
Service Charges on Deposit Accounts | Transferred over Time [Member]
Revenue from contracts in scope of Topic 606		142	151	401	487
Other Income
Revenue from contracts in scope of Topic 606	[1]	310	491	1,834	1,026
Other Income | Transferred at Point in Time [Member]
Revenue from contracts in scope of Topic 606		247	441	1,678	895
Other Income | Transferred over Time [Member]
Revenue from contracts in scope of Topic 606		$ 63	$ 50	$ 156	$ 131

[1] Revenue from contracts with customers in scope of ASC 606.