CONSOLIDATED STATEMENTS OF STOCKHOLDERS' EQUITY - USD ($)	Class A non-voting Preferred [Member]	Common Stock [Member]	Class C Common Stock [Member]	Additional Paid-in Capital [Member]	Retained Earnings [Member]	Treasury Stock, Common [Member]	Noncontrolling Interest [Member]	Total
Beginning balance, value at Jun. 30, 2021	$ 31	$ 657	$ 38	$ 185,100,976	$ (46,007,663)	$ (675,390)	$ (3,048,524)	$ 135,370,125
Beginning Balance, Shares at Jun. 30, 2021		6,554,210
Net income					12,440,906		4,793,482	17,234,388
Buyout of noncontrolling interests				(569,441)			23,441	(546,000)
Stock issued to employees under stock bonus plans
Distributions to noncontrolling interests							(5,822,232)	(5,822,232)
Ending balance, value at Jun. 30, 2022	31	$ 657	38	184,531,535	(33,566,757)	(675,390)	(4,053,833)	146,236,281
Ending Balance, Shares at Jun. 30, 2022		6,554,210
Net income					9,375,776		2,750,740	12,126,516
Purchase of treasury shares						(1,759,457)		(1,759,457)
Cancellation of shares		$ (10)		(1,919,017)		1,919,027
Cancellation of shares, shares		(103,328)
Distributions to noncontrolling interests							(5,776,200)	(5,776,200)
Ending balance, value at Jun. 30, 2023	$ 31	$ 647	$ 38	$ 182,612,518	$ (24,190,981)	$ (515,820)	$ (7,079,293)	$ 150,827,140
Ending Balance, Shares at Jun. 30, 2023		6,450,882