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Loans - Summary of Average of Impaired Loans and Related Interest Income by Loan Portfolio Class (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Average Recorded Investment	$ 1,422	$ 74	$ 970	$ 0
Impaired Loans with Allowance: Interest Income	0	0	0	0
Impaired Loans with No Allowance: Average Recorded Investment	7,204	6,795	7,348	6,963
Impaired Loans with No Allowance: Interest Income	45	261	122	318
Commercial and industrial
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Average Recorded Investment	55	0	59	0
Impaired Loans with Allowance: Interest Income	0	0	0	0
Impaired Loans with No Allowance: Average Recorded Investment	0	0	0	0
Impaired Loans with No Allowance: Interest Income	0	0	0	0
Commercial real estate
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Average Recorded Investment	1,367	0	911	0
Impaired Loans with Allowance: Interest Income	0	0	0	0
Impaired Loans with No Allowance: Average Recorded Investment	7,047	6,201	7,159	6,388
Impaired Loans with No Allowance: Interest Income	45	261	115	318
Commercial real estate construction
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Average Recorded Investment	0	0	0	0
Impaired Loans with Allowance: Interest Income	0	0	0	0
Impaired Loans with No Allowance: Average Recorded Investment	0	0	0	0
Impaired Loans with No Allowance: Interest Income	0	0	0	0
Residential mortgage
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Average Recorded Investment	0	0	0	0
Impaired Loans with Allowance: Interest Income	0	0	0	0
Impaired Loans with No Allowance: Average Recorded Investment	101	594	124	575
Impaired Loans with No Allowance: Interest Income	0	0	7	0
Home equity lines of credit
Financing Receivable, Impaired [Line Items]
Impaired Loans with Allowance: Average Recorded Investment	0	74	0	0
Impaired Loans with Allowance: Interest Income	0	0	0	0
Impaired Loans with No Allowance: Average Recorded Investment	56	0	65	0
Impaired Loans with No Allowance: Interest Income	$ 0	$ 0	$ 0	$ 0

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Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
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Amount of interest income, recognized on cash basis, on financing receivables, for which there is no related allowance for credit losses and are recognized as impaired.

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Amount of average investment of impaired financing receivables for which there is a related allowance for credit losses.

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Amount of interest income on financing receivables, for which there is a related allowance for credit losses, recognized on a cash-basis method of accounting that the financing receivables were impaired.

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