Consolidated Balance Sheets (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Statement Of Financial Position [Abstract]
Real estate facilities, related to VIEs	$ 16,584,089	$ 16,829,789
Secured debt, related to VIEs	$ 10,072,106	$ 10,149,024
Preferred stock, par value	$ 0.001	$ 0.001
Preferred Stock, shares authorized	200,000,000	200,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common stock, par value	$ 0.001	$ 0.001
Common stock, shares authorized	700,000,000	700,000,000
Common stock, shares issued	56,136,435	46,184,742
Common stock, shares outstanding	56,136,435	46,184,742