Loans and Allowance for Loan Losses - Summary Of Allowance For Loan Losses - (Detail) - USD ($)	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Loans And Leases Receivable Disclosure [Line Items]
Beginning balance	$ 4,085,719	$ 3,064,777
Charge-offs	137,364	68,002
Recoveries	112,061	309,186
Net (charge offs) recoveries	25,303	(241,184)
Provision for allowance for loan losses	123,183	779,758
Ending balance	4,183,599	4,085,719
Consumer loans [Member]
Loans And Leases Receivable Disclosure [Line Items]
Charge-offs	48,022	0
Recoveries	6,595	7,910
Commercial and industrial loans [Member]
Loans And Leases Receivable Disclosure [Line Items]
Charge-offs	78,219	149
Recoveries	27,629	146,335
Real Estate [Member]
Loans And Leases Receivable Disclosure [Line Items]
Charge-offs	11,123	67,853
Recoveries	77,837	154,941
Real Estate [Member] \| Residential [Member]
Loans And Leases Receivable Disclosure [Line Items]
Charge-offs	11,123	2,951
Recoveries	33,794	123,368
Real Estate [Member] \| Home equity [Member]
Loans And Leases Receivable Disclosure [Line Items]
Charge-offs	0	1,377
Recoveries	0	0
Real Estate [Member] \| Multi-family [Member]
Loans And Leases Receivable Disclosure [Line Items]
Charge-offs		0
Recoveries	0	0
Real Estate [Member] \| Commercial [Member]
Loans And Leases Receivable Disclosure [Line Items]
Charge-offs	0	62,896
Recoveries	19,651	0
Real Estate [Member] \| Construction and land development [Member]
Loans And Leases Receivable Disclosure [Line Items]
Charge-offs	0	629
Recoveries	$ 24,392	$ 31,573

Amount of recovery of loans and lease receivables which had previously been fully or partially written-off as bad debts.

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Amount of loans and leases that have been written off from both loan receivables and allowance reserve for credit loss.

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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 of expense related to estimated loss from loan and lease transactions.

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