LOANS - Summary of aging of loans receivable by portfolio segment (Detail) - USD ($)	Dec. 31, 2022	Dec. 31, 2021
Financing Receivable, Past Due [Line Items]
PCI Loans	$ 4,220,697	$ 5,565,827
Total loans	721,603,936	572,362,843
Commercial and Industrial
Financing Receivable, Past Due [Line Items]
Total loans	1,684,189	7,905,524
30-59 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans Due	92,977	27,529
60-89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans Due	360,849	312,616
Greater than 89 Days Past Due
Financing Receivable, Past Due [Line Items]
Loans Due	298,637	1,327,168
Past Due
Financing Receivable, Past Due [Line Items]
Loans Due	752,463	1,667,313
Not Past Due
Financing Receivable, Past Due [Line Items]
Loans Due	716,630,776	565,129,703
Not Past Due \| Commercial and Industrial
Financing Receivable, Past Due [Line Items]
Loans Due	1,684,189	7,905,524
Residential First Mortgage \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
PCI Loans	2,841,097	4,113,571
Total loans	466,100,627	319,968,234
Residential First Mortgage \| 60-89 Days Past Due \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
Loans Due	360,849	312,616
Residential First Mortgage \| Greater than 89 Days Past Due \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
Loans Due	279,515	857,676
Residential First Mortgage \| Past Due \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
Loans Due	640,364	1,170,292
Residential First Mortgage \| Not Past Due \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
Loans Due	462,619,166	314,684,371
Commercial and Multi-Family \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
PCI Loans	1,348,483	1,412,995
Total loans	162,338,669	175,375,419
Commercial and Multi-Family \| Not Past Due \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
Loans Due	160,990,186	173,962,424
Construction Loans \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
Total loans	61,825,478	41,384,687
Construction Loans \| Greater than 89 Days Past Due \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
Loans Due	469,492
Construction Loans \| Past Due \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
Loans Due		469,492
Construction Loans \| Not Past Due \| Commercial Real Estate Portfolio Segment
Financing Receivable, Past Due [Line Items]
Loans Due	61,825,478	40,915,195
Home Equity and Other Consumer \| Consumer
Financing Receivable, Past Due [Line Items]
PCI Loans	31,117	39,261
Total loans	29,654,973	27,728,979
Home Equity and Other Consumer \| 30-59 Days Past Due \| Consumer
Financing Receivable, Past Due [Line Items]
Loans Due	92,977	27,529
Home Equity and Other Consumer \| Greater than 89 Days Past Due \| Consumer
Financing Receivable, Past Due [Line Items]
Loans Due	19,122
Home Equity and Other Consumer \| Past Due \| Consumer
Financing Receivable, Past Due [Line Items]
Loans Due	112,099	27,529
Home Equity and Other Consumer \| Not Past Due \| Consumer
Financing Receivable, Past Due [Line Items]
Loans Due	$ 29,511,757	$ 27,662,189

Fair value at acquisition of acquired loans not accounted for as debt securities with evidence of deterioration of credit quality.

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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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