Consolidated Statements of Shareholders' Deficit - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	InterGroup Shareholder' Deficit [Member]	Noncontrolling Interest [Member]	Total
Beginning balance at Jun. 30, 2018	$ 33,000	$ 10,522,000	$ (41,217,000)	$ (13,268,000)	$ (43,930,000)	$ (26,037,000)	$ (69,967,000)
Beginning balance, shares at Jun. 30, 2018	3,395,616
Net income (loss)			1,457,000		1,457,000	1,357,000	2,814,000
Issuance of stock
Issuance of stock, shares	9,366
Stock options expense		76,000			76,000		76,000
Investment in Santa Fe		(256,000)			(256,000)	133,000	(123,000)
Investment in Justice						(150,000)	(150,000)
Purchase of treasury stock				(1,079,000)	(1,079,000)		(1,079,000)
Ending balance at Jun. 30, 2019	$ 33,000	10,342,000	(39,760,000)	(14,347,000)	(43,732,000)	(24,697,000)	(68,429,000)
Ending balance, shares at Jun. 30, 2019	3,404,982
Net income (loss)			(3,781,000)		(3,781,000)	(1,308,000)	(5,089,000)
Stock options expense		142,000			142,000		142,000
Investment in Santa Fe		(4,505,000)			(4,505,000)	3,468,000	(1,037,000)
Purchase of treasury stock				(648,000)	(648,000)		(648,000)
Investment in Portsmouth		(266,000)			(266,000)	167,000	(99,000)
Investment in Woodland		913,000			913,000		913,000
Ending balance at Jun. 30, 2020	$ 33,000	$ 6,626,000	$ (43,541,000)	$ (14,995,000)	$ (51,877,000)	$ (22,370,000)	$ (74,247,000)
Ending balance, shares at Jun. 30, 2020	3,404,982