Fair Values of Financial Instruments - Estimated Fair Value and Related Carrying Values of Financial Instruments (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Financial assets:
Restricted stock	$ 4,935	$ 4,869
Bank owned life insurance	18,366	18,254
Other real estate owned		837
Financial liabilities:
Subordinated notes payable	22,180	22,168
Other borrowings	750	755
Carrying Amount
Financial assets:
Cash and due from banks	13,916	12,887
Interest bearing deposits	308,016	297,902
Federal funds sold	23,982	28,040
Available for sale	125,129	122,021
Loans held for sale	1,342	4,064
Loans, net of allowance for credit losses	1,138,799	1,102,539
Accrued interest receivable	4,113	4,313
Restricted stock	4,935	4,869
Other investments	4,983	5,065
Bank owned life insurance	18,366	18,254
Other real estate owned		837
Financial liabilities:
Deposits	1,491,455	1,442,876
Accrued interest payable	267	280
FHLB advances	26,149	26,313
Subordinated notes payable	22,180	22,168
Other borrowings	750	755
Estimated Fair Value
Financial assets:
Cash and due from banks	13,916	12,887
Interest bearing deposits	308,016	297,902
Federal funds sold	23,982	28,040
Available for sale	125,129	122,021
Loans held for sale	1,342	4,064
Loans, net of allowance for credit losses	1,119,549	1,089,812
Accrued interest receivable	4,113	4,313
Restricted stock	4,935	4,869
Other investments	4,983	5,065
Bank owned life insurance	18,366	18,254
Other real estate owned		837
Financial liabilities:
Deposits	1,486,804	1,443,864
Accrued interest payable	267	280
FHLB advances	26,686	27,007
Subordinated notes payable	28,272	30,091
Other borrowings	750	755
Level 1 | Estimated Fair Value
Financial assets:
Cash and due from banks	13,916	12,887
Interest bearing deposits	308,016	297,902
Federal funds sold	23,982	28,040
Level 2 | Estimated Fair Value
Financial assets:
Available for sale	125,129	122,021
Loans held for sale	1,342	4,064
Accrued interest receivable	4,113	4,313
Restricted stock	4,935	4,869
Other investments	4,983	5,065
Bank owned life insurance	18,366	18,254
Financial liabilities:
Deposits	1,135,248	1,063,619
Accrued interest payable	267	280
FHLB advances	26,686	27,007
Subordinated notes payable	28,272	30,091
Level 3 | Estimated Fair Value
Financial assets:
Loans, net of allowance for credit losses	1,119,549	1,089,812
Other real estate owned		837
Financial liabilities:
Deposits	351,556	380,245
Other borrowings	$ 750	$ 755