ORGANIZATION (Details)	Jan. 31, 2014
ORGANIZATION [Abstract]
Percentage of ordinary taxable income that must be distributed to shareholders (in hundredths)	90.00%
Multi-family residential properties [Member]
Real Estate Properties [Line Items]
Number of real estate properties	92
Number of apartment units owned	10,725
Commercial properties [Member]
Real Estate Properties [Line Items]
Number of real estate properties	165
Net rentable area (in square feet)	10,400,000