QUARTERLY FINANCIAL DATA (UNAUDITED) - Unaudited Quarterly Financial Tables- (Details) - USD ($)	3 Months Ended								12 Months Ended
	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2020	Sep. 30, 2020	Jun. 30, 2022	Jun. 30, 2021
Total Revenues – Net									$ 97,592,145	$ 89,929,765
Total Costs and Expenses									75,584,963	72,832,150
Net Income									$ 17,234,388	$ 13,673,811
Basic Net Income Per Common Share Available to Common Stockholders									$ 1.78	$ 1.47
Quarterly Financial Data [Member]
Total Revenues – Net	$ 24,812	$ 24,571	$ 24,479	$ 23,730	$ 24,697	$ 23,090	$ 21,164	$ 20,979	$ 97,592	$ 89,930
Total Costs and Expenses	20,667	18,933	17,996	17,989	20,853	18,968	16,182	16,829	75,585	72,832
Net Income	$ 3,653	$ 3,262	$ 5,137	$ 5,182	$ 2,196	$ 4,299	$ 3,928	$ 3,251	$ 17,234	$ 13,674
Basic Net Income Per Common Share Available to Common Stockholders	$ 0.31	$ 0.33	$ 0.58	$ 0.56	$ 0.10	$ 0.55	$ 0.45	$ 0.37	$ 1.78	$ 1.47
Diluted Net Income Per Common Share Available to Common Stockholders	$ 0.31	$ 0.32	$ 0.57	$ 0.55	$ 0.11	$ 0.54	$ 0.44	$ 0.36	$ 1.75	$ 1.45