Loans and Allowance for Loan Losses - Summary of Impaired Loans (Detail) - USD ($)	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	$ 1,352,996	$ 3,038,366	$ 1,411,247	$ 3,047,485
Interest Income Recognized	12,789	44	32,202	21,809
Interest Income Received	10,917	22,449	30,638	46,341
Consumer loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	0	0	0	0
Interest Income Recognized	0	0	0	0
Interest Income Received	0	0	0	0
Commercial and industrial loans [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	0	0	0	0
Interest Income Recognized	0	0	0	0
Interest Income Received	0	0	0	0
Real Estate [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,352,996	3,038,366	1,411,247	3,047,485
Interest Income Recognized	12,789	44	32,202	21,809
Interest Income Received	10,917	22,449	30,638	46,341
Real Estate [Member] \| Residential [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	1,344,047	1,693,820	1,401,972	1,572,102
Interest Income Recognized	12,717	0	32,016	21,765
Interest Income Received	10,879	22,220	30,441	46,112
Real Estate [Member] \| Home equity [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	0	0	0	797
Interest Income Recognized	0		0
Interest Income Received	0		0
Real Estate [Member] \| Multi-family [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	0	0	0	0
Interest Income Recognized	0	0	0	0
Interest Income Received	0	0	0	0
Real Estate [Member] \| Commercial [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	0	1,339,199	0	1,386,126
Interest Income Recognized	0	0	0	0
Interest Income Received	0	0	0	0
Real Estate [Member] \| Construction and land development [Member]
Financing Receivable, Impaired [Line Items]
Average Recorded Investment	8,949	5,347	9,275	88,460
Interest Income Recognized	72	44	186	44
Interest Income Received	$ 38	$ 229	$ 197	$ 229

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Amount of average investment of impaired financing receivables for which there is no related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 17
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5258-111524

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
-Subparagraph (c)(1)
-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

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Amount of interest income, recognized on accrual basis, on financing receivables that are recognized as impaired, for which there is no related allowance for credit losses.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 310
-SubTopic 10
-Section 50
-Paragraph 15
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-URI https://asc.fasb.org/extlink&oid=123577603&loc=d3e5212-111524

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Amount of interest income, recognized on cash basis, on financing receivables, for which there is no related allowance for credit losses and are recognized as impaired.

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-Publisher FASB
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-SubTopic 10
-Section 50
-Paragraph 15
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