Loans, Loans Modified in a Troubled Debt Restructuring (Details) $ in Thousands	6 Months Ended
Jun. 30, 2021 USD ($) loan	Jun. 30, 2020 USD ($) loan
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	47	44
Recorded Investment(a)	$ 9,808	$ 7,531
Unpaid Principal Balance(b)	$ 9,871	$ 8,986
Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	2	2
Recorded Investment(a)	$ 128	$ 1,112
Unpaid Principal Balance(b)	$ 129	$ 1,140
Commercial real estate — owner occupied
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	1
Recorded Investment(a)	$ 0	$ 288
Unpaid Principal Balance(b)	$ 0	$ 319
Commercial real estate — investor
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	4	1
Recorded Investment(a)	$ 1,690	$ 395
Unpaid Principal Balance(b)	$ 1,690	$ 1,705
Real estate construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	0	1
Recorded Investment(a)	$ 0	$ 102
Unpaid Principal Balance(b)	$ 0	$ 102
Residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	37	24
Recorded Investment(a)	$ 7,424	$ 5,163
Unpaid Principal Balance(b)	$ 7,450	$ 5,237
Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
Number of Loans \| loan	4	15
Recorded Investment(a)	$ 566	$ 471
Unpaid Principal Balance(b)	$ 603	$ 483

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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=123577603&loc=SL6953676-111524

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Amount, after troubled debt restructuring, of modified financing receivable.

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Amount, before troubled debt restructuring, of financing receivable to be modified.

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