Employee Stock Ownership Plan (Narrative) (Details)		3 Months Ended		9 Months Ended
	Dec. 01, 2020 $ / shares shares	Mar. 31, 2022 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) shares	Mar. 31, 2022 USD ($) $ / shares shares	Mar. 31, 2021 USD ($) h $ / shares shares	Dec. 31, 2021 shares	Jun. 30, 2021 shares	Dec. 31, 2020 shares	Jun. 30, 2020 shares
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Number of shares allocated to employees		472,955	467,104	472,955	467,104
Number of shares owned		752,384	767,104	752,384	767,104
Common stock, shares outstanding		2,702,633		2,702,633			2,702,633
ESOP compensation expense | $		$ 77,045	$ 162,476	$ 245,362	$ 218,750
Common Stock [Member]
Employee Stock Ownership Plan (ESOP) Disclosures [Line Items]
Common stock, shares outstanding		2,702,633	2,702,633	2,702,633	2,702,633	2,702,633	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
Period of services rendered					15 years
Price per share | $ / shares		$ 18.29		$ 18.29
Aggregate purchase price | $					$ 5,487,000
Loan, frequency of periodic payment				annual
Number of loan repayment annual installments		15		15
Interest rate on loan		3.00%		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
Common stock, shares outstanding	2,702,633
Shares distributed				14,265	2,015
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