Convertible Notes and Warrant Liabilities (Details 4) (USD $)	12 Months Ended	1 Months Ended	12 Months Ended		0 Months Ended	12 Months Ended	0 Months Ended	12 Months Ended	1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended
Dec. 31, 2012	Dec. 31, 2011	Feb. 28, 2011 Warrant Liabilities	Dec. 31, 2012 Warrant Liabilities	Dec. 31, 2011 Warrant Liabilities	Feb. 22, 2011 Warrant Liabilities	Jul. 02, 2012 $0.15 Warrants	Dec. 31, 2012 $0.15 Warrants	Jul. 02, 2012 $0.25 Warrants	Dec. 31, 2012 $0.25 Warrants	Feb. 28, 2011 Convertible Notes	Dec. 31, 2012 Convertible Notes	Dec. 31, 2011 Convertible Notes	Feb. 22, 2011 Convertible Notes	Jul. 31, 2012 Convertible Notes Second Tranche	Dec. 31, 2012 Convertible Notes Second Tranche	Jul. 02, 2012 Convertible Notes Second Tranche
Input
Stock Price (in dollars per share)				$ 0.15	$ 0.1075	$ 0.0755	$ 0.20	$ 0.15	$ 0.20	$ 0.15		$ 0.15	$ 0.1075	$ 0.0755		$ 0.15	$ 0.20
Exercise Price (in dollars per share)				$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.15	$ 0.25	$ 0.25		$ 0.10	$ 0.10	$ 0.10		$ 0.10	$ 0.10
Expected Life			5 years	3 years 1 month 24 days	4 years 1 month 24 days		5 years	4 years 6 months	5 years	4 years 6 months	3 years	1 year 1 month 24 days	2 years 1 month 24 days		3 years	2 years 6 months
Stock Volatility (as a percent)			90.00%	100.00%	95.00%		110.00%	100.00%	110.00%	100.00%	95.00%	105.00%	100.00%		100.00%	100.00%
Risk-Free Rate (as a percent)			2.16%	0.39%	0.63%		0.67%	0.63%	0.67%	0.63%	1.22%	0.17%	0.27%		0.39%	0.31%
Dividend Rate (as a percent)			0.00%	0.00%	0.00%		0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%		0.00%	0.00%
Outstanding Shares of Common Stock	31,139	30,351	30,351,092	32,434,430	30,351,092		30,976,092	32,434,430	30,976,092	32,434,430	30,351,092	32,434,430	30,351,092		30,976,092	32,434,430
Effective discount rate (as a percent)											20.30%	13.10%	13.20%		10.00%	13.20%
Probability of forced redemption (as a percent)											20.00%	20.00%	20.00%		20.00%	20.00%
Redemption amount due pursuant to clause (II)	$ 0

Percentage of likelihood a loan will be forced for redemption, used as an input to measure fair value.

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Represents the redemption amount due, used as an input to measure fair value, for specified costs due under the various debt agreements.

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Agreed upon price for the exchange of the underlying asset.

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Expected dividends to be paid to holders of the underlying shares or financial instruments (expressed as a percentage of the share or instrument's price).

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Period the instrument, asset or liability is expected to be outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

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Measure of dispersion, in percentage terms (for instance, the standard deviation or variance), for a given stock price.

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Risk-free interest rate assumption used in valuing an instrument.

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Interest rate used to find the present value of an amount to be paid or received in the future as an input to measure fair value. For example, but not limited to, weighted average cost of capital (WACC), cost of capital, cost of equity and cost of debt.

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Price of a single share of a number of saleable stocks of a company.

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Number of [basic] shares or units, after adjustment for contingently issuable shares or units and other shares or units not deemed outstanding, determined by relating the portion of time within a reporting period that common shares or units have been outstanding to the total time in that period.

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