Loans - Troubled Debt Restructurings on Financing Receivables (Details) - TDRs [Member] $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2020 USD ($) Loan	Sep. 30, 2019 USD ($) Loan	Sep. 30, 2020 USD ($) Loan	Sep. 30, 2019 USD ($) Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans \| Loan	8	5	23	16
Troubled Debt Restructurings, Recorded Investment \| $	$ 7,915	$ 459	$ 15,582	$ 1,397
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans \| Loan	1	3	6	10
Troubled Debt Restructurings, Recorded Investment \| $	$ 51	$ 218	$ 660	$ 1,118
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans \| Loan	1		5
Troubled Debt Restructurings, Recorded Investment \| $	$ 451		$ 7,327
Home Equity and Improvement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans \| Loan	3		4	2
Troubled Debt Restructurings, Recorded Investment \| $	$ 66		$ 92	$ 26
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings, Number of Loans \| Loan	3	2	8	4
Troubled Debt Restructurings, Recorded Investment \| $	$ 7,347	$ 241	$ 7,503	$ 253

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- Definition

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, after troubled debt restructuring, of modified financing receivable.

+ References

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