SECURITIES HELD TO MATURITY - Summary of amortized cost, fair value, and gross unrecognized gains and losses of securities held to maturity (Detail) - USD ($)	Mar. 31, 2022	Dec. 31, 2021
Marketable Securities [Line Items]
Amortized Cost	$ 81,314,630	$ 74,053,099
Gross Unrealized Gains	266,460	822,646
Gross Unrealized Losses	(3,166,584)	(794,686)
Fair Value	78,414,506	74,081,059
U.S. Government and Agency Obligations
Marketable Securities [Line Items]
Securities held to maturity, due in One through five years, Amortized Cost	10,000,000
Securities held to maturity, due in Five through ten years, Amortized Cost	3,000,000	3,000,000
Securities held to maturity, due in Five through ten years, Gross Unrealized Losses	(177,120)
Securities held to maturity, due in One through five years, Fair Value	10,000,000
Securities held to maturity, due in Five through ten years, Fair Value	2,822,880	3,000,000
Corporate Bonds
Marketable Securities [Line Items]
Securities held to maturity, due in Five through ten years, Amortized Cost	12,752,169	13,681,053
Securities held to maturity, due in Five through ten years, Gross Unrealized Gains	202,327	410,726
Securities held to maturity, due in Five through ten years, Gross Unrealized Losses	(210,344)	(39,870)
Securities held to maturity, due in Five through ten years, Fair Value	12,744,152	14,051,909
Municipal Obligations
Marketable Securities [Line Items]
Securities held to maturity, due in Less than one year, Amortized Cost	4,005,595	4,006,006
Securities held to maturity, due in One through five years, Amortized Cost	903,250	903,483
Securities held to maturity, due in Five through ten years, Amortized Cost	375,000	375,000
Securities held to maturity, due in more than ten years, Amortized Cost	1,731,343	1,732,386
Securities held to maturity, due in Less than one year, Gross Unrealized Gains	4,171	12,668
Securities held to maturity, due in Five through ten years, Gross Unrealized Gains	10,193	27,353
Securities held to maturity, due in more than ten years, Gross Unrealized Gains		9,527
Securities held to maturity, due in Less than one year, Gross Unrealized Losses	(1,227)	(2,776)
Securities held to maturity, due in One through five years, Gross Unrealized Losses	(43,381)	(15,399)
Securities held to maturity, due in more than ten years, Gross Unrealized Losses	(213,090)
Securities held to maturity, due in Less than one year, Fair Value	4,008,539	4,015,898
Securities held to maturity, due in One through five years, Fair Value	859,869	888,084
Securities held to maturity, due in Five through ten years, Fair Value	385,193	402,353
Securities held to maturity, due in more than ten years, Fair Value	1,518,253	1,741,913
Residential Mortgage Backed Securities
Marketable Securities [Line Items]
Amortized Cost	17,125,728	16,913,787
Gross Unrealized Gains	37,447	75,094
Gross Unrealized Losses	(812,311)	(240,797)
Fair Value	16,350,864	16,748,084
Commercial Mortgage Backed Securities
Marketable Securities [Line Items]
Amortized Cost	31,421,545	33,441,384
Gross Unrealized Gains	12,322	287,278
Gross Unrealized Losses	(1,709,111)	(495,844)
Fair Value	$ 29,724,756	$ 33,232,818

Debt securities, held-to-maturity, maturities after ten years accumulated unrecognized gain.

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