Loans - Troubled Debt Restructurings on Payments (Details) - Subsequently Defaulted [Member] $ in Thousands	3 Months Ended
Mar. 31, 2020 USD ($) Loan	Mar. 31, 2019 USD ($) Loan
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans \| Loan	6	5
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment \| $	$ 718	$ 2,681
Residential Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans \| Loan	3	1
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment \| $	$ 268	$ 76
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans \| Loan	1
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment \| $	$ 172
Commercial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans \| Loan	1	3
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment \| $	$ 132	$ 2,544
Home Equity and Improvement [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Troubled Debt Restructurings That Subsequently Defaulted, Number of Loans \| Loan	1	1
Troubled Debt Restructurings That Subsequently Defaulted, Recorded Investment \| $	$ 146	$ 61

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=118936363&loc=SL6953682-111524

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- Definition

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=118936363&loc=SL6953682-111524

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