Loans, Troubled Debt Restructurings Subsequent Default (Details) $ in Thousands	12 Months Ended
Dec. 31, 2020 USD ($) loan	Dec. 31, 2019 USD ($) loan	Dec. 31, 2018 USD ($) loan
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	9	66	55
Recorded Investment \| $	$ 1,244	$ 6,959	$ 5,241
Commercial and industrial
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	0	3
Recorded Investment \| $	$ 0	$ 0	$ 0
Commercial real estate - investor
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	0	1	0
Recorded Investment \| $	$ 0	$ 461	$ 0
Residential mortgage
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	5	38	20
Recorded Investment \| $	$ 1,036	$ 5,630	$ 3,553
Home equity
Financing Receivable, Modifications [Line Items]
Number of Loans \| loan	4	27	32
Recorded Investment \| $	$ 208	$ 868	$ 1,688

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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=121611835&loc=SL6953682-111524

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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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