Allowance for credit losses change in method of calculating impairments.

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Loans and leases receivable amount funded.

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- Definition

Loans and leases receivable draw amount.

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- Definition

Financing receivable number of loans balance.

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- Definition

Number of processed loan deferments.

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Remaining deferments, number of accounts.

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- Definition

Number of financing receivables that have been modified by troubled debt restructurings.

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Amount of financing receivable modified as troubled debt restructuring.

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- Definition

Amount of financing receivable modified as troubled debt restructuring within previous 12 months, with subsequent payment default.

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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.

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Amount, before allowance for credit loss, of financing receivable.

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For an unclassified balance sheet, amounts due from parties associated with the reporting entity as evidenced by a written promise to pay.

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Loans and Allowance for Loan Losses - Additional Information (Details)	12 Months Ended
	Dec. 31, 2021 USD ($) loan	Dec. 31, 2020 USD ($) loan	Dec. 31, 2019 USD ($) loan
Loans And Leases Receivable Disclosure [Line Items]
Loans, related parties	$ 0	$ 0
Recorded investment in troubled debt restructurings	313,000	333,000
Specific reserves to loans classified as TDRs	$ 313,000	$ 333,000
Loans identified as TDRs \| loan	0	0	0
Financing receivable, modifications, subsequent default, recorded investment	$ 0	$ 0	$ 0
Gross loans receivable	1,314,019,000	1,099,736,000
SBA PPP Loan
Loans And Leases Receivable Disclosure [Line Items]
Total loans funded	154,500,000
Loans forgiven	118,700,000
Home mortgage
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	173,303,000	128,212,000
SBA loans—non-real estate
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	55,759,000	$ 75,151,000
SBA loans—non-real estate \| SBA PPP Loan
Loans And Leases Receivable Disclosure [Line Items]
Gross loans receivable	$ 40,600,000
Payment Deferral \| Total deferments under the CARES Act
Loans And Leases Receivable Disclosure [Line Items]
Number of processed loan deferments \| loan	226
Gross loans receivable	$ 250,758,000
Payment Deferral \| Payment resumed or paid off
Loans And Leases Receivable Disclosure [Line Items]
Number of loans \| loan	223
Gross loans receivable	$ 245,714,000
Payment Deferral \| Remaining deferments
Loans And Leases Receivable Disclosure [Line Items]
Remaining deferments, Number of accounts \| loan	3
Gross loans receivable	$ 5,044,000
Payment Deferral \| Home mortgage \| Total deferments under the CARES Act
Loans And Leases Receivable Disclosure [Line Items]
Number of processed loan deferments \| loan	69
Gross loans receivable	$ 30,205,000
Payment Deferral \| Home mortgage \| Payment resumed or paid off
Loans And Leases Receivable Disclosure [Line Items]
Number of loans \| loan	69
Gross loans receivable	$ 30,205,000
Payment Deferral \| Home mortgage \| Remaining deferments
Loans And Leases Receivable Disclosure [Line Items]
Remaining deferments, Number of accounts \| loan	0
Gross loans receivable	$ 0