Investments in Joint Ventures (Details) (IATG Puerto Rico LLC [Member], USD $)	Dec. 31, 2011
IATG Puerto Rico LLC [Member]
Condensed balance sheet
Net real estate	$ 5,156,600
Cash and cash equivalents	29,000
Accounts receivable	36,000
Deferred expenses	4,400
Prepaid expenses	84,000
Total assets	5,310,000
Note payable (1)	10,124,000	[1]
Other liabilities	3,269,000
Total liabilities	13,393,000
Members' deficit	(8,083,000)
Total liabilities and members' deficit	$ 5,310,000

[1] The note payable is payable to an affiliate of Lightstone and payment thereof is subordinate to the Company's right to receive its share of any proceeds of a sale or refinancing.