SIGNIFICANT ACCOUNTING POLICIES (Details)	Sep. 30, 2012 item
Line of business
Number of units	120
Residential and mixed-use properties
Line of business
Number of properties	20
Number of units	2,251
Condominium
Line of business
Number of properties	1
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	2,251
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)	110,949
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	799
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