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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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Reference 1: http://www.xbrl.org/2003/role/presentationRef
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RELATED PARTY TRANSACTIONS (Details) - USD ($)	12 Months Ended
RELATED PARTY TRANSACTIONS (Details) - USD ($)	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2015	Dec. 11, 2015
ADVISOR'S COMPENSATION AND RELATED PARTY TRANSACTIONS
Related party expense	$ 0	$ 2,221,000	$ 1,293,000
General and administrative to related party	346,000	157,000	171,000
Amended and restated advisory agreement, as amended in January 2012 \| Real estate investment trust management corporation
ADVISOR'S COMPENSATION AND RELATED PARTY TRANSACTIONS
Related party expense	0	693,000	2,448,000
Director \| Advisory services
ADVISOR'S COMPENSATION AND RELATED PARTY TRANSACTIONS
Related party expense	1,193,000	863,000
Majestic Property Management Corp. \| Real property management, real estate brokerage and construction supervision services
ADVISOR'S COMPENSATION AND RELATED PARTY TRANSACTIONS
Related party expense	32,000	34,000	56,000
Gould Investors L.P. \| Shared services agreement
ADVISOR'S COMPENSATION AND RELATED PARTY TRANSACTIONS
General and administrative to related party	723,000	549,000	532,000
Gould Investors L.P. \| Insurance reimbursement
ADVISOR'S COMPENSATION AND RELATED PARTY TRANSACTIONS
Related party expense	24,000	41,000	15,000
Affiliated entity
ADVISOR'S COMPENSATION AND RELATED PARTY TRANSACTIONS
Related party expense	2,834,000	1,919,000	1,436,000
Affiliated entity \| Rent expense
ADVISOR'S COMPENSATION AND RELATED PARTY TRANSACTIONS
Related party expense			64,000
Affiliated entity \| Payment of acquisition fee
ADVISOR'S COMPENSATION AND RELATED PARTY TRANSACTIONS
Related party expense	$ 2,571,000	2,221,000	$ 1,242,000
Unsecured short term borrowing from Gould Investors L.P. \| Other notes payable \| Affiliated entity
ADVISOR'S COMPENSATION AND RELATED PARTY TRANSACTIONS
Debt face amount				$ 8,000,000
Interest rate (as a percent)				5.24%
Interest expense, related party		$ 86,000