CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		6 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2017	Dec. 31, 2016
Revenues:
Hotel	$ 13,187,000	$ 12,837,000	$ 27,624,000	$ 27,442,000
Real estate	3,625,000	3,605,000	7,302,000	7,254,000
Total revenues	16,812,000	16,442,000	34,926,000	34,696,000
Costs and operating expenses:
Hotel operating expenses	(10,743,000)	(9,611,000)	(21,332,000)	(19,867,000)
Real estate operating expenses	(2,102,000)	(1,754,000)	(3,997,000)	(3,561,000)
Depreciation and amortization expenses	(1,267,000)	(1,370,000)	(2,541,000)	(2,638,000)
General and administrative expenses	(730,000)	(602,000)	(1,561,000)	(1,330,000)
Total costs and operating expenses	(14,842,000)	(13,337,000)	(29,431,000)	(27,396,000)
Income from operations	1,970,000	3,105,000	5,495,000	7,300,000
Other income (expense):
Interest expense - mortgages	(2,490,000)	(2,402,000)	(4,983,000)	(4,864,000)
Net loss on marketable securities	(1,178,000)	(3,290,000)	(2,200,000)	(2,136,000)
Impairment loss on other investments	(200,000)	(24,000)	(200,000)	(44,000)
Dividend and interest income	48,000	68,000	131,000	110,000
Trading and margin interest expense	(313,000)	(291,000)	(626,000)	(553,000)
Total other expense, net	(4,133,000)	(5,939,000)	(7,878,000)	(7,487,000)
Loss before income taxes	(2,163,000)	(2,834,000)	(2,383,000)	(187,000)
Income tax (expense) benefit	(344,000)	825,000	(419,000)	(227,000)
Net loss	(2,507,000)	(2,009,000)	(2,802,000)	(414,000)
Less: Net loss (income) attributable to the noncontrolling interest	1,302,000	293,000	1,185,000	(111,000)
Net loss attributable to InterGroup	$ (1,205,000)	$ (1,716,000)	$ (1,617,000)	$ (525,000)
Net loss per share
Basic and diluted	$ (1.06)	$ (0.85)	$ (1.18)	$ (0.17)
Net loss per share attributable to InterGroup
Basic and diluted	$ (0.51)	$ (0.72)	$ (0.68)	$ (0.22)
Weighted average number of basic and diluted common shares outstanding	2,371,125	2,375,654	2,371,445	2,378,690