Revenue Recognition Revenue from Contracts with Customers (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenue from Contracts with Customers [Line Items]
Noninterest Income, Other Operating Income	$ 123	$ 125
Non-interest income within the scope of other ASC topics	1,746	1,523
Noninterest Income	4,974	4,502
Revenue in Scope ASC 606 [Member]
Revenue from Contracts with Customers [Line Items]
Noninterest Income, Other Operating Income	149	118
Total Revenue in ASC 606	3,228	2,979
Deposit Account [Member]
Revenue from Contracts with Customers [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1,100	1,263
Deposit Account [Member] | Revenue in Scope ASC 606 [Member]
Revenue from Contracts with Customers [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1,100	1,263
Credit and Debit Card [Member]
Revenue from Contracts with Customers [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1,341	933
Credit and Debit Card [Member] | Revenue in Scope ASC 606 [Member]
Revenue from Contracts with Customers [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	1,341	933
Fiduciary and Trust [Member]
Revenue from Contracts with Customers [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	638	665
Fiduciary and Trust [Member] | Revenue in Scope ASC 606 [Member]
Revenue from Contracts with Customers [Line Items]
Revenue from Contract with Customer, Including Assessed Tax	$ 638	$ 665