Loans and Allowance for Loan Losses - Schedule of Allowance for Loan Losses and Recorded Investment by Portfolio Segment and Impairment Methodology (Details) - USD ($) $ in Thousands	Mar. 31, 2022	Dec. 31, 2021	Mar. 31, 2021	Dec. 31, 2020
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for Loans Individually Evaluated for Impairment	$ 305	$ 312
Allowance for Loan Collectively Evaluated for Impairment	16,367	15,811
Allowance for loan losses, Total	16,672	16,123	$ 15,339	$ 15,352
Loans Individually Evaluated for Impairment	1,115	1,124
Loans Collectively Evaluated for Impairment	1,427,295	1,312,895
Loans, Total	1,428,410	1,314,019
Accrued interest receivable, allowance	0	205
Accrued interest receivable	4,500	4,400
Commercial real estate
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for Loans Individually Evaluated for Impairment	0	0
Allowance for Loan Collectively Evaluated for Impairment	6,480	8,150
Allowance for loan losses, Total	6,480	8,150	8,594	8,505
Loans Individually Evaluated for Impairment	0	0
Loans Collectively Evaluated for Impairment	730,841	701,450
Loans, Total	730,841	701,450
SBA loans—real estate
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for Loans Individually Evaluated for Impairment	0	0
Allowance for Loan Collectively Evaluated for Impairment	1,750	2,022
Allowance for loan losses, Total	1,750	2,022	2,030	1,802
Loans Individually Evaluated for Impairment	810	812
Loans Collectively Evaluated for Impairment	216,359	219,287
Loans, Total	217,169	220,099
SBA loans—non-real estate
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for Loans Individually Evaluated for Impairment	0	0
Allowance for Loan Collectively Evaluated for Impairment	169	199
Allowance for loan losses, Total	169	199	292	278
Loans Individually Evaluated for Impairment	0	0
Loans Collectively Evaluated for Impairment	35,895	55,759
Loans, Total	35,895	55,759
Commercial and industrial ("C&I")
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for Loans Individually Evaluated for Impairment	305	312
Allowance for Loan Collectively Evaluated for Impairment	3,187	2,536
Allowance for loan losses, Total	3,492	2,848	2,331	2,563
Loans Individually Evaluated for Impairment	305	312
Loans Collectively Evaluated for Impairment	176,629	162,231
Loans, Total	176,934	162,543
Home mortgage
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for Loans Individually Evaluated for Impairment	0	0
Allowance for Loan Collectively Evaluated for Impairment	4,768	2,891
Allowance for loan losses, Total	4,768	2,891	2,075	2,185
Loans Individually Evaluated for Impairment	0	0
Loans Collectively Evaluated for Impairment	266,465	173,303
Loans, Total	266,465	173,303
Consumer
Financing Receivable Allowance For Credit Losses [Line Items]
Allowance for Loans Individually Evaluated for Impairment	0	0
Allowance for Loan Collectively Evaluated for Impairment	13	13
Allowance for loan losses, Total	13	13	$ 17	$ 19
Loans Individually Evaluated for Impairment	0	0
Loans Collectively Evaluated for Impairment	1,106	865
Loans, Total	$ 1,106	$ 865

Allowance for accrued interest receivable.

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Amount, after allowance for credit loss, of accrued interest on financing receivable.

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Amount of allowance for credit loss on financing receivable. Excludes allowance for financing receivable covered under loss sharing agreement.

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