Sale of Common Stock (Details) (USD $)	0 Months Ended							3 Months Ended		0 Months Ended				0 Months Ended
	Feb. 22, 2013	Mar. 31, 2013	Dec. 31, 2012	Mar. 31, 2013 2013 Warrants	Feb. 22, 2013 2013 Warrants	Mar. 31, 2013 2013 SPA Option	Feb. 22, 2013 2013 SPA Option	Mar. 31, 2013 SPA	Mar. 31, 2013 SPA 2013 Warrants	Feb. 22, 2013 SPA 2013 SPA Option	Mar. 31, 2013 SPA 2013 SPA Option	Feb. 22, 2013 Common Stock 2013 Warrants	Feb. 22, 2013 Common Stock SPA	Feb. 22, 2013 Common Stock SPA 2013 Warrants	Feb. 22, 2013 Common Stock Right to Shares Agreement
Sale of Common Stock
Shares of common stock sold		55,794,000	32,434,000										26,933,333
Common stock, share price (in dollars per share)													$ 0.15
Common stock issuable under warrants												1,885,333		26,933,333
Gross proceeds from sale of common stock	$ 4,040,000													$ 4,040,000
Net proceeds from sale of common stock														3,504,000
Term to hold share purchase														24 months
Reserved shares issued (in shares)															7,000,000
Rights to purchase common stock (in shares)															7,000,000
Period for obligation to deliver shares															3 days
Common stock, shares reserved but unissued		7,000,000
Portion of shares of common stock and warrants available for same per share purchase price (as a percent)										0.5
Warrants
Beginning balance (in shares)				28,818,666	28,818,666	13,466,667	13,466,667
Ending balance (in shares)				28,818,666	28,818,666	13,466,667	13,466,667
Exercise price of warrants (in dollars per share)				$ 0.20	$ 0.20	$ 0.15	$ 0.15							$ 0.20
Term of warrants														5 years
Number of shares exercisable under warrants issued														28,818,666
Period for presenting effective registration statement for avoiding cashless exercise of warrants														180 days
Limitation of beneficial ownership of common stock for exercise of warrants (as a percent)														4.99%
Discretionary increase in limitation of beneficial ownership of common stock for exercise of warrants (as a percent)														9.99%
Notice period for discretionary increase in limitation of beneficial ownership of common stock for exercise of warrants														61 days
Grant date fair value									2,759,000		1,211,000
Proceeds received to be used for investor relations								1,000,000
Payments made for investor relations								500,000
Escrow account for investor relations								$ 500,000
Period from closing for release of funds held in escrow account								6 months
Amortization period of investor relations payment								1 year