CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($)	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Mar. 31, 2017	Mar. 31, 2018	Mar. 31, 2017
Revenues:
Hotel	$ 14,344,000	$ 13,495,000	$ 41,968,000	$ 40,937,000
Real estate	3,628,000	3,713,000	10,930,000	10,967,000
Total revenues	17,972,000	17,208,000	52,898,000	51,904,000
Costs and operating expenses:
Hotel operating expenses	(10,573,000)	(10,333,000)	(31,905,000)	(30,200,000)
Real estate operating expenses	(1,843,000)	(1,731,000)	(5,840,000)	(5,292,000)
Depreciation and amortization expenses	(1,260,000)	(1,255,000)	(3,801,000)	(3,893,000)
General and administrative expenses	(828,000)	(752,000)	(2,389,000)	(2,082,000)
Total costs and operating expenses	(14,504,000)	(14,071,000)	(43,935,000)	(41,467,000)
Income from operations	3,468,000	3,137,000	8,963,000	10,437,000
Other income (expense):
Interest expense - mortgages	(2,360,000)	(2,470,000)	(7,343,000)	(7,334,000)
Net loss on marketable securities	(108,000)	(390,000)	(2,308,000)	(2,526,000)
Unrealized loss on other investments	(42,000)	0	(42,000)	0
Impairment loss on other investments	0	(121,000)	(200,000)	(165,000)
Dividend and interest income	92,000	125,000	223,000	235,000
Trading and margin interest expense	(260,000)	(292,000)	(886,000)	(845,000)
Total other expense, net	(2,678,000)	(3,148,000)	(10,556,000)	(10,635,000)
Income (loss) before income taxes	790,000	(11,000)	(1,593,000)	(198,000)
Income tax expense	(11,000)	(159,000)	(430,000)	(386,000)
Net income (loss)	779,000	(170,000)	(2,023,000)	(584,000)
Less: Net (income) loss attributable to the noncontrolling interest	(251,000)	23,000	934,000	(88,000)
Net income (loss) attributable to InterGroup	$ 528,000	$ (147,000)	$ (1,089,000)	$ (672,000)
Net income (loss) per share
Basic	$ 0.33	$ (0.07)
Diluted	0.29	(0.07)
Basic and diluted			$ (0.86)	$ (0.25)
Net income (loss) per share attributable to InterGroup
Basic	0.22	(0.06)
Diluted	$ 0.20	$ (0.06)
Basic and diluted			$ (0.46)	$ (0.28)
Weighted average number of basic common shares outstanding	2,353,073	2,364,395
Weighted average number of diluted common shares outstanding	2,671,073	2,364,395
Weighted average number of basic and diluted common shares outstanding			2,357,289	2,363,292