SECURITIES HELD TO MATURITY - Summary of debt securities held to maturity and unrealized loss position (Detail) - USD ($)	Mar. 31, 2023	Dec. 31, 2022
Marketable Securities [Line Items]
Fair Value, Less Than 12 Months	$ 22,497,212	$ 38,069,709
Unrealized Losses, Less Than 12 Months	(1,138,461)	(1,557,872)
Fair Value, 12 Months or More	48,165,176	29,645,962
Unrealized Losses, 12 Months or More	(5,869,593)	(5,227,489)
Fair Value, Total	68,415,471	67,715,671
Unrealized Losses, Total	(7,008,054)	(6,785,361)
U.S. Government and Agency Obligations
Marketable Securities [Line Items]
Fair Value, Less Than 12 Months		9,543,150
Unrealized Losses, Less Than 12 Months		(456,850)
Fair Value, 12 Months or More	12,183,053	2,533,134
Unrealized Losses, 12 Months or More	(816,947)	(466,866)
Fair Value, Total	12,183,053	12,076,284
Unrealized Losses, Total	(816,947)	(923,716)
Corporate Bonds
Marketable Securities [Line Items]
Fair Value, Less Than 12 Months	13,871,194	11,464,282
Unrealized Losses, Less Than 12 Months	(1,103,901)	(680,447)
Fair Value, 12 Months or More	4,284,963	3,329,054
Unrealized Losses, 12 Months or More	(465,038)	(420,946)
Fair Value, Total	18,156,157	14,793,336
Unrealized Losses, Total	(1,568,939)	(1,101,393)
Municipal Bonds
Marketable Securities [Line Items]
Fair Value, Less Than 12 Months	7,693,548	7,670,152
Unrealized Losses, Less Than 12 Months	(6,787)	(36,250)
Fair Value, 12 Months or More	2,246,917	2,199,401
Unrealized Losses, 12 Months or More	(382,525)	(431,328)
Fair Value, Total	7,693,548	9,869,553
Unrealized Losses, Total	(389,312)	(467,578)
MBSs - residential
Marketable Securities [Line Items]
Fair Value, Less Than 12 Months	932,470	2,008,303
Unrealized Losses, Less Than 12 Months	(27,773)	(101,341)
Fair Value, 12 Months or More	11,366,555	10,809,648
Unrealized Losses, 12 Months or More	(1,502,865)	(1,330,520)
Fair Value, Total	12,299,025	12,817,951
Unrealized Losses, Total	(1,530,638)	(1,431,861)
MBSs - commercial
Marketable Securities [Line Items]
Fair Value, Less Than 12 Months		7,383,822
Unrealized Losses, Less Than 12 Months		(282,984)
Fair Value, 12 Months or More	18,083,688	10,774,725
Unrealized Losses, 12 Months or More	(2,702,218)	(2,577,829)
Fair Value, Total	18,083,688	18,158,547
Unrealized Losses, Total	$ (2,702,218)	$ (2,860,813)