Convertible Notes and Warrants (Details) (USD $)	3 Months Ended	9 Months Ended	12 Months Ended		9 Months Ended			0 Months Ended					3 Months Ended	9 Months Ended		0 Months Ended	3 Months Ended	0 Months Ended		9 Months Ended		0 Months Ended	9 Months Ended		0 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2013	Dec. 31, 2012	Feb. 22, 2011 2011 Securities Purchase Agreement item	Sep. 30, 2013 February 2013 Amendment and Waiver Agreement	Sep. 30, 2013 September 2013 Amendment and Waiver Agreement	Sep. 18, 2013 September 2013 Amendment and Waiver Agreement	Feb. 20, 2013 2011 and 2012 Warrants 2011 Securities Purchase Agreement	Feb. 22, 2013 2011 and 2012 Warrants February 2013 Amendment and Waiver Agreement	Sep. 18, 2013 2011 and 2012 Warrants September 2013 Amendment and Waiver Agreement	Feb. 22, 2013 2011 Warrants	Feb. 22, 2011 2011 Warrants	Sep. 30, 2013 2011 Warrants	Sep. 30, 2013 2011 Warrants	Dec. 31, 2012 2011 Warrants	Jul. 02, 2012 2012 Warrants	Sep. 30, 2013 2012 Warrants	Feb. 22, 2013 2012 Warrants - $0.15 Warrants	Jul. 02, 2012 2012 Warrants - $0.15 Warrants	Sep. 30, 2013 2012 Warrants - $0.15 Warrants	Dec. 31, 2012 2012 Warrants - $0.15 Warrants	Jul. 02, 2012 2012 Warrants - $0.25 Warrants	Sep. 30, 2013 2012 Warrants - $0.25 Warrants	Dec. 31, 2012 2012 Warrants - $0.25 Warrants	Feb. 22, 2013 Third Tranche Warrants	Jan. 16, 2013 Third Tranche Warrants	Sep. 30, 2013 Third Tranche Warrants	Sep. 30, 2013 2011 Convertible Notes	Feb. 22, 2011 2011 Convertible Notes	Sep. 30, 2013 2012 Convertible Notes	Jul. 02, 2012 2012 Convertible Notes	Jan. 16, 2013 Third Tranche Convertible Notes
Convertible Notes
Interest rate (as a percent)																													5.00%	5.00%		5.00%
Amount of additional secured convertible debt that may be secured in tranche				$ 2,000,000
Number of tranches				2
Amount of additional debt funding available in each separate tranche				1,000,000
Aggregate principal amount																													4,000,000		1,000,000	250,000
Period considered in a year for calculation of interest																												360 days
Number of securities called by outstanding warrants returned to the Company for forfeiture (in shares)									12,500,000
Amount of debentures subject to relinquishment of right to purchase									750,000
Conversion price (in dollars per share)							$ 0.06																					$ 0.06		$ 0.06		$ 0.06
Percentage of outstanding principal redeemed under a change of control		130.00%	130.00%																									130.00%
Percentage of accrued and unpaid interest		100.00%	100.00%																									100.00%
Warrants
Beginning balance (in shares)														40,000,000						10,000,000			10,000,000
Less: Canceled (in shares)														(40,000,000)						(10,000,000)			(10,000,000)		(2,500,000)		(2,500,000)
Add: Issued											65,263,156	40,000,000		65,263,156		20,000,000		16,315,790	10,000,000	16,315,790		10,000,000				2,500,000	2,500,000
Less: Exercised (in shares)													(18,236,853)	(47,322,376)			(9,250,535)			(9,250,535)
Ending balance (in shares)													17,940,780	17,940,780						7,065,255						2,500,000
Exercise price of warrants (in dollars per share)									$ 0.098		$ 0.098	$ 0.15	$ 0.098	$ 0.098	$ 0.15			$ 0.098	$ 0.15	$ 0.098	$ 0.15	$ 0.25		$ 0.25		$ 0.15
Volume Weighted Average Price (VWAP price) (in dollars per share)									$ 0.155	$ 0.3705
Exercise price of warrants cancelled (in dollars per share)														$ 0.15						$ 0.15			$ 0.25				$ 0.15
Exercise price of warrants issued (in dollars per share)														$ 0.098						$ 0.098							$ 0.15
Exercise price of warrants exercised (in dollars per share)														$ 0.098						$ 0.098
Number of shares exercisable under warrants issued								50,000,000	81,578,946
Purchase price as a percentage of exercise price of warrants														30.00%
Shares of common stock issued on conversion of warrants													8,913,000	19,608,926			3,401,809			3,401,809
Term of warrants																5 years										5 years
Percentage of change in the present value of the cash flows of the convertible notes and associated warrants, minimum					10.00%	10.00%
Loss on the extinguishment of debt	$ 1,991,000	$ 3,274,000			$ 1,283,000	$ 1,991,000