Real Estate Assets Parenthetical for Depreciation Expense (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Property, Plant and Equipment [Line Items]
Depreciation	$ 1,693,299	$ 1,252,147
Consolidated Entities [Member]
Property, Plant and Equipment [Line Items]
Depreciation	1,500,000		4,800,000
Consolidated VIEs [Member]
Property, Plant and Equipment [Line Items]
Depreciation	$ 239,000		$ 940,000