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Business Combination - Pro forma (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Unaudited pro forma information
After tax merger related expenses	$ 2,760
After tax merger related expenses per share (in US$ per share)	$ (0.75)
Total revenues (net interest income plus noninterest income)		$ 120,173
Net income		$ 18,261
Net income per share, basic and diluted		$ 4.99
Peoples Bankshares, Incorporated (Peoples)
Unaudited pro forma information
After tax merger related expenses	$ 2,110

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- Definition

The after tax merger related expenses included in the business acquisition pro forma net income (loss).

+ References

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The per share after tax merger related expenses included in the business acquisition pro forma net income (loss).

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The pro forma basic and diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

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- Definition

The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(3)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
-Section 50
-Paragraph 2
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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)
-URI http://asc.fasb.org/extlink&oid=79982066&loc=d3e1392-128463

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
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