Investment Securities - Summary Of Investments Securities Available For Sale (Detail) - USD ($)	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 49,670,706	$ 45,870,407
Gross Unrealized Gains	0	246,540
Gross Unrealized Losses	3,427,539	485,311
Estimated Fair Value	$ 46,243,167	$ 45,631,636
Fair Value as % of Total	100.00%	100.00%
US treasuries [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 10,127,958	$ 5,129,275
Gross Unrealized Gains	0	0
Gross Unrealized Losses	581,984	25,271
Estimated Fair Value	$ 9,545,974	$ 5,104,004
Fair Value as % of Total	21.00%	11.00%
Mortgage-backed securities [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 9,957,104	$ 10,295,332
Gross Unrealized Gains	0	174,102
Gross Unrealized Losses	619,629	100,143
Estimated Fair Value	$ 9,337,475	$ 10,369,291
Fair Value as % of Total	20.00%	23.00%
Collateralized mortgage obligations [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 17,196,129	$ 18,804,325
Gross Unrealized Gains	0	70,925
Gross Unrealized Losses	573,514	145,656
Estimated Fair Value	$ 16,622,615	$ 18,729,594
Fair Value as % of Total	36.00%	41.00%
Municipal bonds [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 8,764,515	$ 8,766,475
Gross Unrealized Gains	0	1,513
Gross Unrealized Losses	1,390,436	170,787
Estimated Fair Value	$ 7,374,079	$ 8,597,201
Fair Value as % of Total	16.00%	19.00%
Corporate obligations [Member]
Debt Securities, Available-for-Sale [Line Items]
Amortized Cost	$ 3,625,000	$ 2,875,000
Gross Unrealized Gains	0	0
Gross Unrealized Losses	261,976	43,454
Estimated Fair Value	$ 3,363,024	$ 2,831,546
Fair Value as % of Total	7.00%	6.00%