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Income Taxes - Reconciliation (Details) - USD ($)
12 Months Ended
Jun. 30, 2022
Jun. 30, 2021
Effective Income Tax Rate Reconciliation, Amount [Abstract]    
At Federal statutory rate at 21% $ 372,150 $ 388,665
Tax exempt interest (8,579) (13,936)
Earnings on bank owned life insurance (47,162) (34,580)
State tax, net of federal benefit 107,169 106,736
Other 13,804 30,835
Income tax expense (benefit) $ 437,382 $ 477,720
Federal statutory rate 21.00% 21.00%