CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	3 Months Ended		6 Months Ended
	Dec. 31, 2011	Dec. 31, 2010	Dec. 31, 2011	Dec. 31, 2010
Revenues:
Hotel	$ 10,412,000	$ 9,142,000	$ 21,521,000	$ 18,668,000
Real estate	3,610,000	3,560,000	7,140,000	7,163,000
Total revenues	14,022,000	12,702,000	28,661,000	25,831,000
Costs and operating expenses:
Hotel operating expenses	(7,796,000)	(6,816,000)	(15,941,000)	(14,133,000)
Real estate operating expenses	(2,051,000)	(1,946,000)	(3,912,000)	(3,853,000)
Depreciation and amortization expense	(1,099,000)	(1,719,000)	(2,189,000)	(3,470,000)
General and administrative expense	(410,000)	(400,000)	(898,000)	(872,000)
Total costs and operating expenses	(11,356,000)	(10,881,000)	(22,940,000)	(22,328,000)
Income from operations	2,666,000	1,821,000	5,721,000	3,503,000
Other income (expense):
Interest expense	(1,592,000)	(1,646,000)	(3,157,000)	(3,240,000)
Net (loss) gain on marketable securities	(186,000)	3,703,000	(4,841,000)	4,056,000
Net unrealized (loss) gain on other investments and derivative instruments	(99,000)	11,822,000	(417,000)	11,863,000
Impairment loss on other investments	(215,000)	(310,000)	(632,000)	(540,000)
Dividend and interest income	509,000	472,000	599,000	611,000
Trading and margin interest expense	(382,000)	(324,000)	(806,000)	(627,000)
Other (expense) income, net	(1,965,000)	13,717,000	(9,254,000)	12,123,000
Income (loss) before income taxes	701,000	15,538,000	(3,533,000)	15,626,000
Income tax benefit (expense)	9,000	(5,002,000)	1,577,000	(5,020,000)
Income (loss) from continuing operations	710,000	10,536,000	(1,956,000)	10,606,000
Discontinued operations:
Income from discontinued operations	29,000	17,000	47,000	27,000
Income tax expense	(12,000)	(7,000)	(19,000)	(11,000)
Income from discontinued operations	17,000	10,000	28,000	16,000
Net (loss) income	727,000	10,546,000	(1,928,000)	10,622,000
Less: Net income attributable to the noncontrolling interest	(726,000)	(1,944,000)	(1,146,000)	(2,011,000)
Net (loss) income attributable to InterGroup	$ 1,000	$ 8,602,000	$ (3,074,000)	$ 8,611,000
Net (loss) income per share from continuing operations
Basic (in dollars per share)	$ 0.29	$ 4.35	$ (0.81)	$ 4.39
Diluted (in dollars per share)	$ 0.29	$ 4.16	$ (0.81)	$ 4.23
Net income per share from discontinued operations
Basic (in dollars per share)	$ 0.01	$ 0	$ 0.01	$ 0.01
Diluted (in dollars per share)	$ 0.01	$ 0	$ 0.01	$ 0.01
Net (loss) income per share attributable to InterGroup
Basic (in dollars per share)	$ 0	$ 3.55	$ (1.28)	$ 3.56
Diluted (in dollars per share)	$ 0	$ 3.40	$ (1.28)	$ 3.43
Weighted average number of common shares outstanding (in shares)	2,414,516	2,424,136	2,409,370	2,417,055
Weighted average number of diluted common shares outstanding (in shares)	2,489,307	2,532,804	2,409,370	2,507,999