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Loans - Additional information (Details)		3 Months Ended
	Mar. 27, 2020 USD ($) item	Mar. 31, 2022 USD ($)	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)
LOANS
Real estate-construction loans, percentage		4.90%		5.60%
Loan balances net of unearned income		$ 596,000		$ 826,000
Loans, net of unearned income		978,372,000		985,054,000
Fee Income from Loans		9,496,000	$ 10,327,000
Unrecognized fee income from the PPP loans originations		$ 179,000		386,000
Paycheck Protection Program (PPP)
LOANS
Number of times of average monthly payroll costs | item	2.5
Loan amount	$ 10,000,000.0
Interest rate	1.00%
Percentage of guarantee by SBA	100.00%
Number of loans		44
Loans, net of unearned income		$ 7,835,000		$ 17,311,000
Fee Income from Loans		240,000
Unrecognized fee income from the PPP loans originations		$ 179,000
Paycheck Protection Program (PPP) | originated prior to June 5, 2020
LOANS
Loan term	2 years
Paycheck Protection Program (PPP) | originated after June 5, 2020
LOANS
Loan term	5 years
Paycheck Protection Program (PPP) | Minimum
LOANS
Percentage of loan proceeds used for payroll expenses	60.00%

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Financing Receivable Amount Of Loans Authorized

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Represents the percentage of loan proceeds used for payroll expenses.

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Number of loans.

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Real estate-construction loans, percentage.

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Amount of unrecognized fee income from the PPP loan originations.

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The aggregate interest and fee income generated by: (1) loans the Entity has positive intent and ability to hold for the foreseeable future, or until maturity or payoff, including commercial and consumer loans, whether domestic or foreign, which may consist of: (a) industrial and agricultural; (b) real estate; and (c) real estate construction loans; (d) trade financing; (e) lease financing; (f) home equity lines-of-credit; (g) automobile and other vehicle loans; and (h) credit card and other revolving-type loans and (2) loans and leases held-for-sale which may include mortgage loans, direct financing, and sales-type leases.

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Amount of deferred interest and fee income, unamortized costs incurred to originate loans and leases, unamortized loan commitments and loan syndication fees, and premiums over or discounts from face amounts of acquired loans. Excludes amounts for loans and leases covered under loss sharing agreements.

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Amount before allowance and after deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Excludes loans and leases covered under loss sharing agreements.

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