Allowance for Loan Losses - Composition of Allowance for Loans Losses, by Class (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for Loans Evaluated Individually for Impairment	$ 576	$ 462	$ 2,213
Allowance for Loans Evaluated Collectively for Impairment	14,945	15,791	9,426
Total Allowance for Loan Losses	15,521	16,253
Commercial \| Real estate
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for Loans Evaluated Individually for Impairment	42	112	251
Allowance for Loans Evaluated Collectively for Impairment	5,325	5,066	3,491
Total Allowance for Loan Losses	5,367	5,178
Commercial \| Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for Loans Evaluated Individually for Impairment	16	18	0
Allowance for Loans Evaluated Collectively for Impairment	730	644	365
Total Allowance for Loan Losses	746	662
Commercial \| Other
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for Loans Evaluated Individually for Impairment	381	169	1,273
Allowance for Loans Evaluated Collectively for Impairment	2,449	3,269	2,056
Total Allowance for Loan Losses	2,830	3,438
Municipal
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for Loans Evaluated Individually for Impairment	0	0	0
Allowance for Loans Evaluated Collectively for Impairment	157	171	27
Total Allowance for Loan Losses	157	171
Residential \| Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for Loans Evaluated Individually for Impairment	0	0	0
Allowance for Loans Evaluated Collectively for Impairment	148	102	25
Total Allowance for Loan Losses	148	102
Residential \| Term
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for Loans Evaluated Individually for Impairment	137	163	237
Allowance for Loans Evaluated Collectively for Impairment	2,596	2,416	787
Total Allowance for Loan Losses	2,733	2,579
Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for Loans Evaluated Individually for Impairment	0	0	447
Allowance for Loans Evaluated Collectively for Impairment	925	1,211	631
Total Allowance for Loan Losses	925	1,211
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for Loans Evaluated Individually for Impairment	0	0	5
Allowance for Loans Evaluated Collectively for Impairment	833	778	862
Total Allowance for Loan Losses	833	778
Unallocated
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for Loans Evaluated Individually for Impairment	0	0	0
Allowance for Loans Evaluated Collectively for Impairment	1,782	2,134	$ 1,182
Total Allowance for Loan Losses	$ 1,782	$ 2,134

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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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The valuation allowance for financing receivables that are expected to be uncollectible that were collectively evaluated for impairment.

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Amount of valuation allowance for financing receivables that are expected to be uncollectible that were individually evaluated for impairment.

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