Condensed Consolidated Statements of Shareholders' Deficit (Unaudited) - USD ($)	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	InterGroup Shareholder' Deficit [Member]	Noncontrolling Interest [Member]	Total
Beginning balance at Jun. 30, 2018	$ 33,000	$ 10,522,000	$ (41,217,000)	$ (13,268,000)	$ (43,930,000)	$ (26,037,000)	$ (69,967,000)
Beginning balance, shares at Jun. 30, 2018	3,395,616
Stock options expense		30,000			30,000		30,000
Purchase of treasury stock				(198,000)	(198,000)		(198,000)
Issuance of stock
Net income (loss)			630,000		630,000	498,000	1,128,000
Ending balance at Sep. 30, 2018	$ 33,000	10,552,000	(40,587,000)	(13,466,000)	(43,468,000)	(25,539,000)	(69,007,000)
Ending balance, shares at Sep. 30, 2018	3,395,616
Beginning balance at Jun. 30, 2018	$ 33,000	10,522,000	(41,217,000)	(13,268,000)	(43,930,000)	(26,037,000)	(69,967,000)
Beginning balance, shares at Jun. 30, 2018	3,395,616
Net income (loss)							6,000
Ending balance at Dec. 31, 2018	$ 33,000	10,550,000	(41,614,000)	(13,732,000)	(44,763,000)	(25,618,000)	(70,381,000)
Ending balance, shares at Dec. 31, 2018	3,404,982
Beginning balance at Sep. 30, 2018	$ 33,000	10,552,000	(40,587,000)	(13,466,000)	(43,468,000)	(25,539,000)	(69,007,000)
Beginning balance, shares at Sep. 30, 2018	3,395,616
Stock options expense		29,000			29,000		29,000
Purchase of treasury stock				(266,000)	(266,000)		(266,000)
Issuance of stock
Issuance of stock, shares	9,366
Investment in Santa Fe		(31,000)			(31,000)	16,000	(15,000)
Net income (loss)			(1,027,000)		(1,027,000)	(95,000)	(1,122,000)
Ending balance at Dec. 31, 2018	$ 33,000	10,550,000	(41,614,000)	(13,732,000)	(44,763,000)	(25,618,000)	(70,381,000)
Ending balance, shares at Dec. 31, 2018	3,404,982
Beginning balance at Jun. 30, 2019	$ 33,000	10,342,000	(39,760,000)	(14,347,000)	(43,732,000)	(24,697,000)	(68,429,000)
Beginning balance, shares at Jun. 30, 2019	3,404,982
Stock options expense		8,000			8,000		8,000
Purchase of treasury stock				(156,000)	(156,000)		(156,000)
Investment in Santa Fe		(147,000)			(147,000)	74,000	(73,000)
Net income (loss)			336,000		336,000	308,000	644,000
Ending balance at Sep. 30, 2019	$ 33,000	10,203,000	(39,424,000)	(14,503,000)	(43,691,000)	(24,315,000)	(68,006,000)
Ending balance, shares at Sep. 30, 2019	3,404,982
Beginning balance at Jun. 30, 2019	$ 33,000	10,342,000	(39,760,000)	(14,347,000)	(43,732,000)	(24,697,000)	(68,429,000)
Beginning balance, shares at Jun. 30, 2019	3,404,982
Net income (loss)							1,024,000
Ending balance at Dec. 31, 2019	$ 33,000	10,166,000	(39,176,000)	(14,693,000)	(43,670,000)	(24,161,000)	(67,831,000)
Ending balance, shares at Dec. 31, 2019	3,404,982
Beginning balance at Sep. 30, 2019	$ 33,000	10,203,000	(39,424,000)	(14,503,000)	(43,691,000)	(24,315,000)	(68,006,000)
Beginning balance, shares at Sep. 30, 2019	3,404,982
Stock options expense		9,000			9,000		9,000
Purchase of treasury stock				(190,000)	(190,000)		(190,000)
Investment in Santa Fe		(46,000)			(46,000)	22,000	(24,000)
Net income (loss)			248,000		248,000	132,000	380,000
Ending balance at Dec. 31, 2019	$ 33,000	$ 10,166,000	$ (39,176,000)	$ (14,693,000)	$ (43,670,000)	$ (24,161,000)	$ (67,831,000)
Ending balance, shares at Dec. 31, 2019	3,404,982