SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES - Earnings Per Share - (Details) - USD ($)	12 Months Ended
	Jun. 30, 2022	Jun. 30, 2021
Basic Numerator: Net Income Available to Common Stockholders	$ 12,440,906	$ 10,207,588
Basic Denominator: Weighted Average Shares Outstanding	6,554,209	6,505,283
Basic Income Per Common Share	$ 1.90	$ 1.57
Common Stock [Member]
Basic Numerator: Net Income Available to Common Stockholders	$ 11,690,796	$ 9,592,134
Basic Denominator: Weighted Average Shares Outstanding	6,554,209	6,505,283
Basic Income Per Common Share	$ 1.78	$ 1.47
Weighted average shares outstanding	6,554,209	6,505,283
Shares included upon conversion of Class C Common to calculate a diluted EPS	127,504	127,504
Total Denominator for Diluted Earnings Per Share	6,681,713	6,632,787
Diluted Income per Common Share	$ 1.75	$ 1.45
Common Class C [Member]
Basic Numerator: Net Income Available to Common Stockholders	$ 191,038	$ 156,744
Basic Denominator: Weighted Average Shares Outstanding	382,513	382,513
Basic Income Per Common Share	$ 0.50	$ 0.41
Weighted average shares outstanding	382,513	382,513
Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock
Total Denominator for Diluted Earnings Per Share	382,513	382,513
Diluted Income per Common Share	$ 0.50	$ 0.41