Commitments and Contingencies (ACL on Unfunded Commitments) (Details) - USD ($) $ in Thousands	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
ACL on unfunded commitments	$ 2,161	$ 2,382		$ 293
Adoption of ASC 326			$ 1,483
Provision	(221)	606
Commercial Real Estate [Member]
ACL on unfunded commitments	1,267	907		136
Adoption of ASC 326			817
Provision	360	(46)
Commercial & Industrial [Member]
ACL on unfunded commitments	816	1,402		144
Adoption of ASC 326			626
Provision	(586)	632
Total Commercial [Member]
ACL on unfunded commitments	2,083	2,309		280
Adoption of ASC 326			1,443
Provision	(226)	586
Residential Real Estate [Member]
ACL on unfunded commitments	62	54		6
Adoption of ASC 326			34
Provision	8	14
Home Equity [Member]
ACL on unfunded commitments	0	0		0
Adoption of ASC 326			0
Provision	0	0
Other Consumer [Member]
ACL on unfunded commitments	16	19		7
Adoption of ASC 326			6
Provision	(3)	6
Total Consumer [Member]
ACL on unfunded commitments	16	19		$ 7
Adoption of ASC 326			$ 6
Provision	$ (3)	$ 6

Amount of expected credit loss for credit exposure on off-balance-sheet commitment, including but not limited to, loan commitment, standby letter of credit, financial guarantee not accounted for as insurance. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 45
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121611286&loc=d3e11927-110247

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=124255206&loc=SL82919202-210446

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Amount of expense (reversal of expense) for expected credit loss for off-balance sheet credit exposure. Excludes off-balance sheet credit exposure accounted for as insurance and instrument accounted for under derivatives and hedging.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 50
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124255953&loc=SL82919249-210447

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The impact of the adoption of Topic 326 on the allowance for credit losses on unfunded commitments, effective 1/1/20.

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