Summary of Significant Accounting Policies (Details) (USD $)	3 Months Ended			1 Months Ended			3 Months Ended
	Mar. 31, 2014	Mar. 31, 2013	Dec. 31, 2013	Oct. 31, 2012 Flat Iron VI LLC	Dec. 31, 2012 Siphon Draw LLC	May 31, 2013 Red Rock River LLC	Mar. 31, 2014 Short Term Loans Receivable	Mar. 31, 2014 Long Term Loans Receivable	Mar. 31, 2014 Minimum	Mar. 31, 2014 Maximum	Mar. 31, 2014 Self-Managed Homes	Mar. 31, 2013 Self-Managed Homes	Mar. 31, 2014 Preferred Operator Homes	Mar. 31, 2013 Preferred Operator Homes	Mar. 31, 2014 Cash and Cash Equivalents	Dec. 31, 2013 Cash and Cash Equivalents
Summary Of Significant Accounting Policies [Line Items]
Estimate useful lives of assets in real estate portfolio									5 years	27 years 6 months
Mortgage loans	$ 36,656,000		$ 43,512,000				$ 35,500,000
Mortgage loans, weighted-average interest rate							11.80%	8.00%
Mortgage loans, weighted-average remaining term							84 days	29 years
Mortgage loans								1,100,000
Cash held with designated brokers to facilitate acquisition of properties															20,100,000	0
Rents and other receivables, net	700,000		1,700,000								600,000		100,000
Provision for doubtful accounts	545,000	157,000									300,000	200,000	200,000	0
Investment in joint-venture				$ 5,500,000	$ 4,700,000	$ 18,000,000
Equity interest in joint-venture, percentage				78.00%	80.00%	62.00%