Debt (Details Textual) (USD $)	3 Months Ended		1 Months Ended					3 Months Ended	1 Months Ended
	Mar. 31, 2013	Dec. 31, 2012	Oct. 31, 2012 5400 Westminster LP [Member]	Mar. 31, 2013 Two Point Seven One Percent Loan Due October Two Thousand and Fourteen [Member]	Mar. 31, 2013 Three Percent Loan Due August Two Thousand and Fourteen [Member] Memphis, TN [Member]	Mar. 31, 2013 Three Point Five Percent Due May Two Thousand Sixteen [Member]	Mar. 31, 2013 Hotel Wales Loan [Member]	Mar. 31, 2013 Note B [Member] Cerritos, CA [Member]	Oct. 31, 2012 Notes Payable, Other Payables [Member]	Mar. 31, 2013 Notes Payable, Other Payables [Member]
Debt (Textual) [Abstract]
Debt instrument basis spread on floor rate	0.50%					1.00%	3.00%
Debt instrument interest rate cap basis spread at LIBOR				1.00%	0.50%
Interest Rate of B Note								6.6996%	15.00%
Amount payable on notes for interest accruing								$ 12,000
Note Issued								14,500,000	1,600,000
Percentage on return on capital								9.00%
Percentage of trust holds loan			50.00%
Maturity period of the assumed debt	Aug. 15, 2022								Oct. 15, 2022
Eliminated amount of note									800,000
Outstanding balance of loan								860,000		800,000
Debt (Additional Textual) [Abstract]
Outstanding mortgage loans payable	$ 278,824,000	$ 280,576,000