Parent Company Only Financial Information - Parent Only Balance Sheets (Details) - USD ($)	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2019
Assets
Cash in bank subsidiary	$ 1,989,643	$ 3,610,747
Other assets	825,081	363,355
Total assets	213,627,300	170,650,249
Liabilities:
Total liabilities	183,778,149	149,867,914
Stockholders' Equity
Total stockholders' equity	29,849,151	20,782,335	$ 20,139,787
Total liabilities and stockholders' equity	213,627,300	$ 170,650,249
Parent
Assets
Cash in bank subsidiary	3,374,104
Investment in subsidiary, at underlying equity	25,842,077
Loan receivable-ESOP	873,970
Other assets	5,922
Total assets	30,096,073
Liabilities:
Due to subsidiary bank	246,922
Total liabilities	246,922
Stockholders' Equity
Total stockholders' equity	29,849,151
Total liabilities and stockholders' equity	$ 30,096,073