Investments in Unconsolidated Affiliated Entities (Unaudited Condensed Income Statement) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended				6 Months Ended
	Jun. 30, 2013		Jun. 30, 2012		Jun. 30, 2013		Jun. 30, 2012
Schedule of Equity Method Investments [Line Items]
Company's share of net income/(loss)	$ 17		$ 39		$ 71		$ 86
Brownmill, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Revenue	844		895		1,805		1,837
Property operating expenses	319		310		708		627
Depreciation and amortization	209		218		420		435
Operating income/(loss)	316		367		677		775
Interest expense and other, net	(288)		(294)		(575)		(590)
Net income/(loss)	28		73		102		185
Company's share of net income/(loss)	14		33		50		78
Additional depreciation and amortization expense	(66)	[1]	(73)	[1]	(135)	[1]	(147)	[1]
Company's loss from investment	(52)		(40)		(85)		(69)
LVP Rego Park, LLC [Member]
Schedule of Equity Method Investments [Line Items]
Operating expenses	1		1		2		4
Operating income/(loss)	(1)		(1)		(2)		(4)
Interest income	857		787		1,725		1,550
Net income/(loss)	856		786		1,723		1,546
Company's share of net income/(loss)	85		79		172		155
Additional depreciation and amortization expense	(16)				(16)
Company's loss from investment	$ 69		$ 79		$ 156		$ 155

[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