CONDENSED CONSOLIDATED BALANCE SHEETS [Parenthetical] (USD $)	Mar. 31, 2014	Dec. 31, 2013
Preferred stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Preferred stock, shares authorized	5,000,000	5,000,000
Preferred stock, shares issued	0	0
Preferred stock, shares outstanding	0	0
Common stock, par value (in dollars per share)	$ 0.0001	$ 0.0001
Common stock, shares authorized	200,000,000	200,000,000
Common stock, shares issued	78,457,126	78,433,916
Common stock, shares outstanding	78,457,126	78,433,916