CONSOLIDATED BALANCE SHEETS (unaudited) (Parenthetical) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Preferred stock, par value (in USD per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	50,000,000	50,000,000
Common stock, par value (in USD per share)	$ 0.001	$ 0.001
Common stock, shares authorized	750,000,000	750,000,000
Common stock, shares issued	28,181,761	28,108,105
Common stock, shares outstanding	28,181,761	28,108,105
Series A Preferred Stock
Preferred stock, par value (in USD per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	612,943	630,419
Preferred stock, shares outstanding	612,943	630,419
Series B Preferred Stock
Preferred stock, par value (in USD per share)	$ 0.001	$ 0.001
Preferred stock, shares authorized	10,000,000	10,000,000
Preferred stock, share issued	8,064,534	0
Preferred stock, share outstanding	8,064,534	0
Preferred stock, liquidation preference	$ 25,025,000
Preferred stock, shares authorized	10,000,000
Preferred stock, shares issued	8,064,534
Preferred stock, shares outstanding	8,064,534