ORGANIZATION (Details) ft² in Millions	Oct. 31, 2015 ft² Property Unit
ORGANIZATION [Abstract]
Percentage of ordinary taxable income that must be distributed to shareholders	90.00%
Multi-family Properties [Member]
Real Estate Properties [Line Items]
Number of real estate properties	94
Number of apartment units owned | Unit	12,269
Multi-family Properties [Member] | Held for Sale [Member]
Real Estate Properties [Line Items]
Number of real estate properties	8
Commercial Properties [Member]
Real Estate Properties [Line Items]
Number of real estate properties	83
Net rentable area (in square feet) | ft²	4.5
Commercial Properties [Member] | Held for Sale [Member]
Real Estate Properties [Line Items]
Number of real estate properties	13