NOTE 18 - QUARTERLY FINANCIAL DATA (UNAUDITED) - Unaudited Quarterly Financial Tables- (Details) - USD ($)	3 Months Ended								12 Months Ended
	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Total Revenues - Net									$ 81,515,994	$ 78,036,586	$ 73,368,210
Total Costs and Expenses									61,831,783	58,940,506	59,012,594
Net Income									25,452,185	23,678,798	$ 18,795,517
Quarterly Financial Data [Member]
Total Revenues - Net	$ 21,035,000	$ 20,979,000	$ 20,168,000	$ 19,334,000	$ 20,892,000	$ 20,008,000	$ 18,403,000	$ 18,734,000	81,516,000	78,037,000
Total Costs and Expenses	16,348,000	16,577,000	14,358,000	14,549,000	17,160,000	14,006,000	13,794,000	13,981,000	61,832,000	58,941,000
Net Income	$ 11,349,000	$ 4,262,000	$ 5,240,000	$ 4,601,000	$ 7,123,000	$ 7,122,000	$ 4,934,000	$ 4,500,000	$ 25,452,000	$ 23,679,000
Basic Net Income Per Common Share Available to Common Stockholders	$ 1.47	$ 0.52	$ 0.62	$ 0.55	$ 0.89	$ 0.9	$ 0.64	$ 0.55	$ 3.16	$ 2.98
Diluted Net Income Per Common Share Available to Common Stockholders	$ 1.44	$ 0.51	$ 0.61	$ 0.54	$ 0.87	$ 0.88	$ 0.63	$ 0.54	$ 3.1	$ 2.92