SIGNIFICANT ACCOUNTING POLICIES (Details 2) (USD $)	9 Months Ended		0 Months Ended		9 Months Ended			9 Months Ended
	Sep. 30, 2013 item	Sep. 30, 2012	Jan. 03, 2012 Class A units	Aug. 20, 2007 Class A units	Sep. 30, 2013 Minimum	Sep. 30, 2013 Minimum Cash and cash equivalents	Sep. 30, 2013 Maximum	Sep. 30, 2013 Maximum Cash and cash equivalents	Sep. 30, 2013 Investment Properties/Joint Venture item	Sep. 30, 2013 Investment Properties/Joint Venture Minimum	Sep. 30, 2013 Investment Properties/Joint Venture Maximum
Principles of Consolidation
Ownership interest in each subsidiary (as a percent)					99.67%		100.00%
Number of limited liability companies									9
Percentage of ownership in Joint Ventures										40.00%	50.00%
Carrying value of investment to discontinue applying the equity method	$ 0
Revenue Recognition
Period for which arrears are charged against income	60 days
Income Taxes
Provision for income taxes	0
Segment Reporting
Number of segments	1
Income Per Depositary Receipt
Forward split of depositary receipts			3
Exchange ratio of depositary receipts for partnership units before adjustment			10
Exchange ratio of depositary receipts for partnership units after adjustment			30
Number of units in each depository receipt			0.03333	0.1
Income (Loss) per Unit
Dilutive units	0
Concentration of Credit Risks and Financial Instruments
Interest rate on interest bearing accounts (as a percent)						0.01%		0.35%
Federally uninsured amounts of cash and cash equivalents, and security deposits included in prepaid expenses and other assets	6,445,000	6,243,000
Advertising Expense
Advertising expense	23,483	43,190
Interest Capitalized
Criteria of capitalization of interest on property based on specified period of construction					1 year
Capitalized interest	$ 0	$ 0