FAIR VALUE - Summary of assets measured at fair value on a recurring basis (Detail) - USD ($)	Mar. 31, 2023	Jan. 01, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	$ 82,051,189	$ 0	$ 85,100,578
MBSs - residential
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	38,297,167		39,649,045
MBSs - commercial
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	18,632,513		19,552,724
Fair Value, Recurring Basis | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	4,983,764		4,927,608
Fair Value, Recurring Basis | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	77,230,774		80,497,032
Fair Value, Recurring Basis | U.S Treasury Bills | Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	4,983,764		4,927,608
Fair Value, Recurring Basis | U.S. Government and Agency Obligations | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	5,500,932		5,465,154
Fair Value, Recurring Basis | Cash Flow Hedge | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	163,349		324,062
Fair Value, Recurring Basis | Corporate Bonds | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	14,636,813		15,506,047
Fair Value, Recurring Basis | MBSs - residential | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	38,297,167		39,649,045
Fair Value, Recurring Basis | MBSs - commercial | Significant Other Observable Inputs (Level 2)
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	18,632,513		19,552,724
Fair Value, Recurring Basis | Carrying Value
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	82,214,538		85,424,640
Fair Value, Recurring Basis | Carrying Value | U.S Treasury Bills
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	4,983,764		4,927,608
Fair Value, Recurring Basis | Carrying Value | U.S. Government and Agency Obligations
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	5,500,932		5,465,154
Fair Value, Recurring Basis | Carrying Value | Cash Flow Hedge
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	163,349		324,062
Fair Value, Recurring Basis | Carrying Value | Corporate Bonds
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	14,636,813		15,506,047
Fair Value, Recurring Basis | Carrying Value | MBSs - residential
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	38,297,167		39,649,045
Fair Value, Recurring Basis | Carrying Value | MBSs - commercial
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Securities available for sale	$ 18,632,513		$ 19,552,724