Consolidated Statements of Stockholders' Deficit (Parenthetical) (USD $)	3 Months Ended
	Mar. 31, 2013
Issuance of Class A Common Stock, per share, Lower range	$ 0.70
Issuance of Class A Common Stock, per share, Upper range	$ 0.73
Issuance of Class A Common Stock, issuance costs (in dollars)	$ 8,742
Private placement of Class A Common Stock, per share	$ 0.83
Private placement of Class A Common Stock, issuance costs (in dollars)	$ 90,000
Employee stock options exercised	$ 0.81