Loans (Troubled Debt Restructurings Subsequent Default) (Details) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021 USD ($) loan	Sep. 30, 2020 USD ($) loan	Sep. 30, 2021 USD ($) loan	Sep. 30, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans modified as a troubled debt restructuring	0	5	0	17
TDR, subsequent default		$ 950		$ 950
Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans modified as a troubled debt restructuring	0	4	0	10
Home Equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans modified as a troubled debt restructuring	0	1	0	4
Payment Default [Member]
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans modified as a troubled debt restructuring \| loan	1	2	1	2
TDR, subsequent default	$ 330		$ 330
Payment Default [Member] \| Residential Real Estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans modified as a troubled debt restructuring \| loan	1	1	1	1
TDR, subsequent default	$ 330	$ 903	$ 330	$ 903
Payment Default [Member] \| Home Equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of loans modified as a troubled debt restructuring \| loan	0	1	0	1
TDR, subsequent default	$ 0	$ 47	$ 0	$ 47

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Number of financing receivables that have been modified by troubled debt restructurings.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 33
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953676-111524

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Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-Subparagraph (a)(2)
-URI http://asc.fasb.org/extlink&oid=121611835&loc=SL6953682-111524

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