Other Assets (Details Textual) (USD $) In Thousands, unless otherwise specified	Mar. 31, 2012	Dec. 31, 2011
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Accumulated amortization, incentives to lessees	$ 3,991	$ 3,696
Accumulated depreciation on FF&E and leasehold improvements	18,223	17,814
Accumulated amortization on loan closing costs	1,415	4,026
Accumulated amortization of in place leases	3,532	2,833
Accumulated amortization of finite-lived intangible assets, above market leases	$ 9,106	$ 8,845