CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' DEFICIT - USD ($)	Total	Common Stock [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Treasury Stock [Member]	InterGroup Shareholders' Deficit [Member]	Noncontrolling Interest [Member]
Beginning Balance at Jun. 30, 2017	$ (75,318,000)	$ 33,000	$ 10,346,000	$ (45,298,000)	$ (12,626,000)	$ (47,545,000)	$ (27,773,000)
Beginning Balance (in shares) at Jun. 30, 2017		3,395,616
Net (loss) Income	(295,000)	$ 0	0	(412,000)	0	(412,000)	117,000
Stock options expense	62,000	0	62,000	0	0	62,000	0
Ending Balance at Sep. 30, 2017	(75,551,000)	$ 33,000	10,408,000	(45,710,000)	(12,626,000)	(47,895,000)	(27,656,000)
Ending Balance (in shares) at Sep. 30, 2017		3,395,616
Beginning Balance at Jun. 30, 2017	(75,318,000)	$ 33,000	10,346,000	(45,298,000)	(12,626,000)	(47,545,000)	(27,773,000)
Beginning Balance (in shares) at Jun. 30, 2017		3,395,616
Net (loss) Income	(2,802,000)
Ending Balance at Dec. 31, 2017	(78,107,000)	$ 33,000	10,468,000	(46,915,000)	(12,735,000)	(49,149,000)	(28,958,000)
Ending Balance (in shares) at Dec. 31, 2017		3,395,616
Beginning Balance at Sep. 30, 2017	(75,551,000)	$ 33,000	10,408,000	(45,710,000)	(12,626,000)	(47,895,000)	(27,656,000)
Beginning Balance (in shares) at Sep. 30, 2017		3,395,616
Net (loss) Income	(2,507,000)	$ 0	0	(1,205,000)	0	(1,205,000)	(1,302,000)
Stock options expense	60,000	0	60,000	0	0	60,000	0
Purchase of treasury stock	(109,000)	0	0	0	(109,000)	(109,000)	0
Ending Balance at Dec. 31, 2017	(78,107,000)	$ 33,000	10,468,000	(46,915,000)	(12,735,000)	(49,149,000)	(28,958,000)
Ending Balance (in shares) at Dec. 31, 2017		3,395,616
Beginning Balance at Jun. 30, 2018	(69,967,000)	$ 33,000	10,522,000	(41,217,000)	(13,268,000)	(43,930,000)	(26,037,000)
Beginning Balance (in shares) at Jun. 30, 2018		3,395,616
Net (loss) Income	1,128,000	$ 0	0	630,000	0	630,000	498,000
Stock options expense	30,000	0	30,000	0	0	30,000	0
Purchase of treasury stock	(198,000)	0	0	0	(198,000)	(198,000)	0
Ending Balance at Sep. 30, 2018	(69,007,000)	$ 33,000	10,552,000	(40,587,000)	(13,466,000)	(43,468,000)	(25,539,000)
Ending Balance (in shares) at Sep. 30, 2018		3,395,616
Beginning Balance at Jun. 30, 2018	(69,967,000)	$ 33,000	10,522,000	(41,217,000)	(13,268,000)	(43,930,000)	(26,037,000)
Beginning Balance (in shares) at Jun. 30, 2018		3,395,616
Net (loss) Income	6,000
Ending Balance at Dec. 31, 2018	(70,381,000)	$ 33,000	10,550,000	(41,614,000)	(13,732,000)	(44,763,000)	(25,618,000)
Ending Balance (in shares) at Dec. 31, 2018		3,404,982
Beginning Balance at Sep. 30, 2018	(69,007,000)	$ 33,000	10,552,000	(40,587,000)	(13,466,000)	(43,468,000)	(25,539,000)
Beginning Balance (in shares) at Sep. 30, 2018		3,395,616
Issuance of stock for compensation	0	$ 0	0	0	0	0	0
Issuance of stock for compensation (in shares)		9,366
Net (loss) Income	(1,122,000)	$ 0	0	(1,027,000)	0	(1,027,000)	(95,000)
Stock options expense	29,000	0	29,000	0	0	29,000	0
Investment in Santa Fe	(15,000)	0	(31,000)	0	0	(31,000)	16,000
Purchase of treasury stock	(266,000)	0	0	0	(266,000)	(266,000)	0
Ending Balance at Dec. 31, 2018	$ (70,381,000)	$ 33,000	$ 10,550,000	$ (41,614,000)	$ (13,732,000)	$ (44,763,000)	$ (25,618,000)
Ending Balance (in shares) at Dec. 31, 2018		3,404,982