SIGNIFICANT ACCOUNTING POLICIES (Details) - 10Q	Mar. 31, 2015 item
Residential and mixed-use properties
Line of Business
Number of properties	20
Number of units	2,412
Condominium
Line of Business
Number of units	19
Wholly owned properties
Line of Business
Number of properties	24
Wholly owned properties | Residential buildings
Line of Business
Number of properties	16
Number of units	2,412
Wholly owned properties | Mixed use residential, retail and office buildings
Line of Business
Number of properties	4
Wholly owned properties | Commercial
Line of Business
Number of properties	3
Area of property (in square feet)	108,043
Wholly owned properties | Condominium
Line of Business
Number of properties	1
Number of units	19
Partially owned properties | Residential and mixed-use properties
Line of Business
Number of properties	9
Number of units	790
Area of property (in square feet)	12,500
Partially owned properties | Residential and mixed-use properties | Minimum
Line of Business
Percentage of ownership interest	40.00%
Partially owned properties | Residential and mixed-use properties | Maximum
Line of Business
Percentage of ownership interest	50.00%
Partially owned properties | Car parking lot
Line of Business
Capacity of real estate property (in cars per lot)	50