CONSOLIDATED STATEMENTS OF OPERATIONS (USD $)	12 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2012
Revenues:
Rental and other revenue from real estate properties	$ 65,254,000	$ 30,592,000	$ 8,675,000
Other income	1,141,000	1,213,000	1,218,000
Total revenues	66,395,000	31,805,000	9,893,000
Expenses:
Operating expenses relating to real estate properties	37,067,000	16,409,000	6,042,000
Interest expense	20,670,000	11,978,000	3,778,000
Advisor's fee, related party	1,801,000	971,000	420,000
Property acquisition costs	2,542,000	2,637,000	2,407,000
General and administrative-including $623, $779 and $705 to related party	6,324,000	5,862,000	2,739,000
Depreciation and amortization	15,576,000	7,094,000	2,004,000
Total expenses	83,980,000	44,951,000	17,390,000
Total revenues less total expenses	(17,585,000)	(13,146,000)	(7,497,000)
Equity in earnings of unconsolidated ventures	19,000	198,000	965,000
Gain on sale of available-for-sale securities		530,000	605,000
Gain on sale of partnership interest		5,481,000
Loss from continuing operations	(17,566,000)	(6,937,000)	(5,927,000)
Discontinued operations:
Income from discontinued operations	1,400,000	8,257,000	3,493,000
Discontinued operations	1,400,000	9,026,000	7,477,000
Net (loss) income	(16,166,000)	2,089,000	1,550,000
Plus: net loss attributable to non-controlling interests	6,712,000	2,924,000	2,880,000
Net (loss) income attributable to common shareholders	(9,454,000)	5,013,000	4,430,000
Basic and diluted per share amounts attributable to common shareholders:
Loss from continuing operations (in dollars per share)	$ (0.76)	$ (0.28)	$ (0.16)
Income from discontinued operations (in dollars per share)	$ 0.10	$ 0.63	$ 0.48
Basic and diluted (loss) earnings per share (in dollars per share)	$ (0.66)	$ 0.35	$ 0.32
Amounts attributable to BRT Realty Trust:
Loss from continuing operations	(10,854,000)	(3,244,000)	(2,255,000)
Income from discontinued operations	1,400,000	8,257,000	6,685,000
Net (loss) income attributable to common shareholders	(9,454,000)	5,013,000	4,430,000
Weighted average number of common shares outstanding:
Basic and diluted (in shares)	14,265,589	14,137,091	14,035,972
Loan
Discontinued operations:
Gain on sale of assets			3,192,000
Real estate assets
Discontinued operations:
Gain on sale of assets		$ 769,000	$ 792,000