Employee Stock Ownership Plan (Narrative) (Details)		12 Months Ended
	Dec. 01, 2020 shares	Jun. 30, 2022 USD ($) h $ / shares shares	Jun. 30, 2021 USD ($) shares	Dec. 01, 2021 $ / shares	Jun. 30, 2020 shares
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Price per share | $ / shares		$ 0.25
Common stock, shares outstanding		2,702,633	2,702,633		2,402,633
ESOP compensation expense | $		$ 325,067	$ 353,897
Shares distributed			300,000
Common Stock [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Common stock, shares outstanding		2,702,633	2,702,633		2,402,633
Employee Stock Ownership Plan [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Number of hours worked per year to quality for the plan | h		1,000
Number of shares allocated to employees	469,119	496,091	487,220
Period of services rendered		15 years
Price per share | $ / shares		$ 18.29
Aggregate purchase price | $		$ 5,487,000
Loan, frequency of periodic payment		annual
Number of loan repayment annual installments		15
Interest rate on loan		3.00%
Purchase price per share, lower range limit | $ / shares		$ 18.04
Purchase price per share, upper range limit | $ / shares		$ 19.43
Number of shares owned	769,119	752,384	766,649
Common stock, shares outstanding	2,702,633
ESOP compensation expense | $		$ 325,067	$ 353,897
Shares distributed		14,265	2,470
Employee Stock Ownership Plan [Member] | Common Stock [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Number of shares sold	300,000
Sale of stock, price per share | $ / shares				$ 0.3333