Allowance for Loan Losses - Narrative (Details) $ in Thousands	3 Months Ended	12 Months Ended
Mar. 31, 2022 USD ($) loan_class	Dec. 31, 2021 USD ($)	Mar. 31, 2021 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of loan classes \| loan_class	8
Percent of related loans	0.67%	0.69%
Increase (decrease) in qualitative portion	$ 137
Allowance for loan losses	$ 15,766	$ 15,521	$ 16,594
Allowance for loan losses as a percent of total loans	0.92%	0.94%	1.09%
Number of classes in the commercial loan portfolio \| loan_class	3
Loan-to-value percent, commercial real estate	80.00%
Number of classes in the residential loan portfolio \| loan_class	2
Construction loans, percent of capital	58.70%
Construction loans, maximum percent of capital	100.00%
Construction loans and non-owner-occupied commercial real estate loans, percent of capital	211.80%
Construction loans and non-owner-occupied commercial real estate loans, maximum percent of capital	300.00%
Outstanding loans and commitments subject by independent consulting firm	60.00%
Residential loans, loan to value percent minimum	75.00%
Residential loans, loan to value percent, maximum	80.00%
Consumer loans, loan to value percent, minimum	80.00%
Consumer loans, loan to value percent, maximum	90.00%
Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 866	$ 833	$ 872
Delinquent period before consumer loans are charged off	120 days
Residential
Accounts, Notes, Loans and Financing Receivable [Line Items]
Loan to value ratio	0.80
Amortization term (in years)	30 years
Delinquent period before residential loans are placed on non-accrual status	90 days
Delinquent period for loans charged off	180 days
Delinquent period for loans charged off after receipt of notification	60 days
Residential \| Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 161	148	131
Loan maturities	1 year
Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 939	925	947
Loan maturities	300 months
Loan to value ratio	0.80
Commercial \| Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 939	746	649
Loan maturities	2 years
Unallocated Reserves
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 1,732	$ 1,782	1,027
Percent of total allowance reserve	11.00%	11.50%
Unallocated Reserves \| Consumer
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 0	$ 0	0
Unallocated Reserves \| Residential \| Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	0	0
Unallocated Reserves \| Home equity line of credit
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	0	0
Unallocated Reserves \| Commercial \| Construction
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 0	$ 0	$ 0

Allowance for Loan Losses of Total Loans, Percentage

No definition available.

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- Definition

Allowance for Loan and Lease Losses, Related Loans, Percentage

+ References

No definition available.

+ Details

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- Definition

Allowance for Loan and Lease Losses, Related Loans, Period Increase (Decrease)

+ References

No definition available.

+ Details

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- Definition

Collateralized Consumer Loans To Individuals Loan To Value

+ References

No definition available.

+ Details

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- Definition

Collateralized Consumer Loans To Individuals Loan To Value Maximum Range High

+ References

No definition available.

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- Definition

The maximum percentage of loan to value for commercial real estate loans based on current appraisal information.

+ References

No definition available.

+ Details

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- Definition

The regulatory maximum allowed ratio of loan portfolio to Company capital for construction and non-owner-occupied commercial real estate.

+ References

No definition available.

+ Details

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- Definition

The actual ratio of loan amount to Company capital for construction and non-owner-occupied commercial real estate.

+ References

No definition available.

+ Details

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- Definition

The regulatory maximum allowed ratio of loan portfolio to Company capital for construction loans.

+ References

No definition available.

+ Details

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- Definition

The ratio of loan portfolio to Company capital for construction loans .

+ References

No definition available.

+ Details

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- Definition

Delinquent Period Before Consumer Loans Charged Off

+ References

No definition available.

+ Details

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- Definition

The minimum amount of days past due at which residential loans are placed on non-accrual status..

+ References

No definition available.

+ Details

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- Definition

Delinquent Period for Loans Charged Off

+ References

No definition available.

+ Details

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- Definition

Delinquent Period for Loans Charged Off, Period After Receipt of Notification from Bankruptcy Court

+ References

No definition available.

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- Definition

Financing Receivable, Commercial, Number of Loan Classes

+ References

No definition available.

+ Details

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- Definition

Financing Receivables, Number Of Loan Classes

+ References

No definition available.

+ Details

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- Definition

Loans and Leases Receivable, Residential, Number of Loan Classes

+ References

No definition available.

+ Details

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- Definition

Loans and Leases Receivable, Amortization Term

+ References

No definition available.

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- Definition

Loans and Leases Receivable, Loan to Value Ratio

+ References

No definition available.

+ Details

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- Definition

Loans and Leases Receivable, Term

+ References

No definition available.

+ Details

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- Definition

Percentage of loans and commitments subject to review by an independent consulting firm each year.

+ References

No definition available.

+ Details

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- Definition

Percentage of Total Reserve Allowance accounted for by Loan Loss Allowances

+ References

No definition available.

+ Details

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- Definition

Residential Loans Typical Loan To Value

+ References

No definition available.

+ Details

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- Definition

Residential Loans Typical Loan To Value Range Low

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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Reference 4: http://www.xbrl.org/2003/role/disclosureRef
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
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Reference 8: http://www.xbrl.org/2003/role/disclosureRef
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