Consolidated Statements of Operations - USD ($)	12 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Revenues:
Total revenues	$ 58,017,000	$ 74,753,000
Costs and operating expenses:
Depreciation and amortization expense	(4,872,000)	(4,935,000)
General and administrative expense	(2,870,000)	(2,346,000)
Total costs and operating expenses	(53,126,000)	(59,557,000)
Income from operations	4,891,000	15,196,000
Other income (expense):
Interest expense - mortgage	(9,321,000)	(9,788,000)
Loss on disposal of assets		(398,000)
Net loss on marketable securities	(1,913,000)	(1,733,000)
Loss on debt extinguishment	(687,000)
Impairment loss on other investments	(219,000)	(98,000)
Dividend and interest income	363,000	484,000
Trading and margin interest expense	(997,000)	(1,150,000)
Net other expense	(12,774,000)	(12,683,000)
(Loss) Income before income taxes	(7,883,000)	2,513,000
Income tax benefit	2,794,000	301,000
Net (loss) income	(5,089,000)	2,814,000
Less: Net loss (income) attributable to the noncontrolling interest	1,308,000	(1,357,000)
Net (loss) income attributable to InterGroup	$ (3,781,000)	$ 1,457,000
Net (loss) income per share
Basic	$ (2.21)	$ 1.21
Diluted	(2.21)	1.06
Net (loss) income per share attributable to InterGroup
Basic	(1.64)	0.63
Diluted	$ (1.64)	$ 0.55
Weighted average number of common shares outstanding	2,300,059	2,328,156
Weighted average number of diluted shares outstanding	2,623,254	2,658,551
Hotel [Member]
Revenues:
Total revenues	$ 42,839,000	$ 59,881,000
Costs and operating expenses:
Total costs and operating expenses	(37,333,000)	(44,466,000)
Real Estate [Member]
Revenues:
Total revenues	15,178,000	14,872,000
Costs and operating expenses:
Total costs and operating expenses	$ (8,051,000)	$ (7,810,000)