Condensed Consolidated Balance Sheets (unaudited) (Parenthetical) - $ / shares	Mar. 31, 2016	Dec. 31, 2015
Stockholders' Equity
Preferred stock par value (in dollars per share)	$ 0	$ 0
Preferred stock shares authorized	0	0
Preferred stock shares issued	0	0
Preferred stock shares outstanding	0	0
Common stock par value (in dollars per share)	$ 0.001	$ 0.001
Common stock shares authorized	100,000,000	50,000,000
Common stock shares issued	42,437,116	42,027,991
Common stock shares outstanding	42,437,116	42,027,991