CONSOLIDATED BALANCE SHEETS (Parenthetical) - $ / shares	Mar. 31, 2015	Dec. 31, 2014
CONSOLIDATED BALANCE SHEETS
Preferred Stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Preferred Stock, shares authorized	10,000,000	10,000,000
Preferred Stock, shares issued	0	0
Preferred Stock, shares outstanding	0	0
Common Stock, par value (in dollars per share)	$ 0.00001	$ 0.00001
Common Stock, shares authorized	250,000,000	250,000,000
Common Stock, shares issued	79,467,530	77,817,861
Common Stock, shares outstanding	79,467,530	77,817,861