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Loans and Allowance for Loan Losses - Summary of Major Classifications of Loans (Details) - USD ($) $ in Thousands		Mar. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Loans And Leases Receivable Disclosure [Line Items]
Total loans, gross		$ 601,693	$ 584,384
Less allowance for loan losses		(8,806)	(8,559)	$ (6,361)
Total loans, net		592,887	575,825
Commercial (Secured by Real Estate - Owner Occupied)
Loans And Leases Receivable Disclosure [Line Items]
Total loans, gross		156,332	158,662
Less allowance for loan losses		(2,435)	(2,701)	(1,913)
Commercial (Secured by Real Estate - Non-owner Occupied)
Loans And Leases Receivable Disclosure [Line Items]
Total loans, gross		119,461	104,042
Less allowance for loan losses		(2,220)	(1,980)	(1,171)
Commercial and Industrial
Loans And Leases Receivable Disclosure [Line Items]
Total loans, gross		155,374	152,834
Paycheck Protection Program Loans
Loans And Leases Receivable Disclosure [Line Items]
Total loans, gross	[1]	7,078	17,883
Less allowance for loan losses		0	0
Construction, Land and Acquisition & Development
Loans And Leases Receivable Disclosure [Line Items]
Total loans, gross		27,138	16,317
Less allowance for loan losses		(336)	(162)	(224)
Residential Mortgage 1-4 Family
Loans And Leases Receivable Disclosure [Line Items]
Total loans, gross		56,448	63,065
Consumer Installment
Loans And Leases Receivable Disclosure [Line Items]
Total loans, gross		79,862	71,580
Less allowance for loan losses		$ (1,098)	$ (969)	$ (719)
[1] Includes PPP loans that are fully guaranteed by the SBA; thus no allowance for loan losses has been allocated to these loans.

X

- Definition

Amount of allowance to cover probable credit losses on loans and leases. Includes carryover of or adjustments to the allowance for loan losses in connection with business combinations. Excludes allowance for loans and leases covered under loss sharing agreements.

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

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Amount after allowance and 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 and loans held for sale.

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