CONSOLIDATED STATEMENTS OF SHAREHOLDERS' DEFICIT - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	InterGroup Shareholders' Deficit [Member]	Noncontrolling Interest [Member]
Beginning Balance at Jun. 30, 2015	$ (63,972,000)	$ 33,000	$ 10,494,000	$ (36,459,000)	$ (11,878,000)	$ (37,810,000)	$ (26,162,000)
Beginning Balance (in shares) at Jun. 30, 2015		3,391,096
Net loss	(9,267,000)	$ 0	0	(7,136,000)	0	(7,136,000)	(2,131,000)
Stock options expense	391,000	0	391,000	0	0	391,000	0
Issuance of stock for compensation	88,000	$ 0	88,000	0	0	88,000	0
Issuance of stock for compensation (in shares)		4,520
Redemption of limited partnership interests	(50,000)	$ 0	0	(50,000)	0	(50,000)	0
Investment in Santa Fe	(120,000)	0	(292,000)	0	0	(292,000)	172,000
Investment in Portsmouth	(113,000)	0	(318,000)	0	0	(318,000)	205,000
Purchase of treasury stock	(204,000)	0	0	0	(204,000)	(204,000)	0
Ending Balance at Jun. 30, 2016	(73,247,000)	$ 33,000	10,363,000	(43,645,000)	(12,082,000)	(45,331,000)	(27,916,000)
Ending Balance (in shares) at Jun. 30, 2016		3,395,616
Net loss	(1,676,000)	$ 0	0	(1,653,000)	0	(1,653,000)	(23,000)
Stock options expense	268,000	0	268,000	0	0	268,000	0
Investment in Santa Fe	(83,000)	0	(188,000)	0	0	(188,000)	105,000
Investment in Portsmouth	(36,000)	0	(97,000)	0	0	(97,000)	61,000
Purchase of treasury stock	(544,000)	0	0	0	(544,000)	(544,000)	0
Ending Balance at Jun. 30, 2017	$ (75,318,000)	$ 33,000	$ 10,346,000	$ (45,298,000)	$ (12,626,000)	$ (47,545,000)	$ (27,773,000)
Ending Balance (in shares) at Jun. 30, 2017		3,395,616