Warrants (Details) (USD $)	12 Months Ended
	Dec. 31, 2012
Warrants to purchase common stock issued and outstanding
Number of Warrants	15,723,504
Warrants Weighted Average Exercise Price	$ 1.36
Warrants Weighted Average Life In Years	2 years 10 months 24 days
Derivative [Member] | Derivative With Exercise Price One [Member]
Warrants to purchase common stock issued and outstanding
Warrants Issued Year	2010
Number of Warrants	13,387,994
Warrant Exercise Price	1.40
Derivative [Member] | Derivative With Exercise Price One [Member] | Maximum [Member]
Warrants to purchase common stock issued and outstanding
Investment Warrants Expiration Date	Dec. 03, 2015
Derivative [Member] | Derivative With Exercise Price One [Member] | Minimum [Member]
Warrants to purchase common stock issued and outstanding
Investment Warrants Expiration Date	Oct. 26, 2015
Derivative [Member] | Derivative with Exercise Price Two [Member]
Warrants to purchase common stock issued and outstanding
Warrants Issued Year	2010
Number of Warrants	1,940,157
Warrant Exercise Price	1.00
Derivative [Member] | Derivative with Exercise Price Two [Member] | Maximum [Member]
Warrants to purchase common stock issued and outstanding
Investment Warrants Expiration Date	Dec. 03, 2015
Derivative [Member] | Derivative with Exercise Price Two [Member] | Minimum [Member]
Warrants to purchase common stock issued and outstanding
Investment Warrants Expiration Date	Sep. 26, 2015
Equity [Member] | Derivative with Exercise Price Three [Member]
Warrants to purchase common stock issued and outstanding
Warrants Issued Year	2011
Number of Warrants	16,071
Warrant Exercise Price	1.40
Investment Warrants Expiration Date	Jun. 17, 2018
Equity [Member] | Derivative with Exercise Price Four [Member]
Warrants to purchase common stock issued and outstanding
Warrants Issued Year	2011
Number of Warrants	343,137
Warrant Exercise Price	3.06
Investment Warrants Expiration Date	Dec. 21, 2016
Equity [Member] | Derivative with Exercise Price Five [Member]
Warrants to purchase common stock issued and outstanding
Warrants Issued Year	2012
Number of Warrants	36,145
Warrant Exercise Price	1.66
Investment Warrants Expiration Date	Oct. 05, 2019