Business Combination - Purchase Price Allocation (Details) - USD ($) $ in Thousands	Jan. 01, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Identifiable liabilities assumed:
Goodwill resulting from acquisition		$ 25,191	$ 25,191	$ 14,425
Peoples Bankshares, Incorporated (Peoples)
Purchase price
Cash paid	$ 10,579
Common stock issued	11,612
Total purchase price	22,191
Identifiable assets acquired:
Cash and cash equivalents	29,680
Securities available for sale	17,169
Loans	124,195
Accrued interest receivable	430
Corporate premises and equipment	3,105
Other real estate owned	281
Core deposit intangible asset	1,711
Bank-owned life insurance	3,591
Investment in small business investment company	1,493
Other receivables	5,234
Other assets	3,658
Total identifiable assets acquired	190,547
Identifiable liabilities assumed:
Demand and savings deposits	94,798
Time deposits	77,018
Borrowings	4,245
Accrued interest payable	260
Salaries, benefits and deferred compensation	2,054
Other liabilities	747
Total identifiable liabilities assumed	179,122
Net identifiable assets acquired	11,425
Goodwill resulting from acquisition	$ 10,766
Amortization period (in years)	15 years