Summary of Significant Accounting Policies - Additional Information (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Mortgage loans held for sale	$ 2,844,707	$ 2,944,962
Employee Stock Ownership Plan (ESOP), Cash Contributions to ESOP	$ 3,900,000
ESOP loan payment and release of ESOP shares	391,868
Net Income (Loss) Available to Common Stockholders, Basic	$ 1,159,598
Weighted Average Number of Shares Outstanding, Basic and Diluted	4,371,646
TC Federal Bank
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Ownership percentage	100.00%
Reported Value Measurement [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Mortgage loans held for sale	$ 2,844,707	2,944,962
Federal Reserve Bank of Atlanta [Member]
New Accounting Pronouncements Or Change In Accounting Principle [Line Items]
Federal funds maturity period	90 days
Reserve requirements held in cash	$ 0	$ 0