Investments in Unconsolidated Affiliated Entities (Unaudited Condensed Income Statement) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2013		Mar. 31, 2012
Schedule of Equity Method Investments [Line Items]
Company's share of net income/(loss)	$ 54		$ 47
Brownmill, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Revenue	961		942
Property operating expenses	389		317
Depreciation and amortization	211		217
Operating income/(loss)	361		408
Interest expense and other, net	(287)		(296)
Net income/(loss)	74		112
Company's share of net income/(loss)	36		45
Additional depreciation and amortization expense	69	[1]	74	[1]
Company's loss from investment	(33)		(29)
LVP Rego Park, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Operating expenses	1		3
Operating income/(loss)	(1)		(3)
Interest income	868		763
Net income/(loss)	867		760
Company's share of net income/(loss)	$ 87		$ 76

[1] Additional depreciation and amortization expense relates to the amortization of the difference between the cost of the Company's investment in Brownmill and the amount of the underlying equity in net assets of Brownmill.