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5. Stockholders' Deficit (Details) (USD $)
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6 Months Ended |
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Jun. 30, 2014
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|
Series A [Member]
|
|
| Contractual life, in years |
4 years 1 month 6 days
|
| Expected volatility |
132.00%
|
| Risk-free interest rate |
0.40%
|
| Exercise price |
$ 0.60
|
| Fair value per warrant |
$ 0.03
|
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Series A Affiliates [Member]
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|
| Contractual life, in years |
3 years 1 month 6 days
|
| Expected volatility |
114.10%
|
| Risk-free interest rate |
0.40%
|
| Exercise price |
$ 0.60
|
| Fair value per warrant |
$ 0.03
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|
Series B [Member]
|
|
| Contractual life, in years |
3 years 1 month 6 days
|
| Expected volatility |
114.10%
|
| Risk-free interest rate |
0.40%
|
| Exercise price |
$ 0.60
|
| Fair value per warrant |
$ 0.03
|
|
Series C [Member]
|
|
| Contractual life, in years |
5 years 1 month 6 days
|
| Expected volatility |
121.90%
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| Risk-free interest rate |
0.40%
|
| Exercise price |
$ 0.60
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| Fair value per warrant |
$ 0.03
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Aug/Sep 2011 Notes [Member]
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|
| Contractual life, in years |
2 years 1 month 6 days
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| Expected volatility |
126.60%
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| Risk-free interest rate |
0.40%
|
| Exercise price |
$ 0.60
|
| Fair value per warrant |
$ 0.03
|
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Feb2012PIPE [Member]
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|
| Contractual life, in years |
4 years 7 months 6 days
|
| Expected volatility |
126.60%
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| Risk-free interest rate |
0.40%
|
| Exercise price |
$ 0.60
|
| Fair value per warrant |
$ 0.03
|
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Series J warrants March 28, 2013 [Member]
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|
| Contractual life, in years |
3 years
|
| Expected volatility |
141.80%
|
| Risk-free interest rate |
0.39%
|
| Exercise price |
$ 0.40
|
| Fair value per warrant |
$ 0.36
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Series J warrants May 20, 2013 [Member]
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|
| Contractual life, in years |
3 years
|
| Expected volatility |
144.30%
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| Risk-free interest rate |
0.36%
|
| Exercise price |
$ 0.40
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| Fair value per warrant |
$ 0.26
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Series J warrants February 6, 2013 [Member]
|
|
| Contractual life, in years |
3 years
|
| Expected volatility |
147.00%
|
| Risk-free interest rate |
0.36%
|
| Exercise price |
$ 0.40
|
| Fair value per warrant |
$ 0.30
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Series K Warrants December 12, 2013
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|
| Contractual life, in years |
3 years
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| Expected volatility |
136.10%
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| Risk-free interest rate |
0.39%
|
| Exercise price |
$ 0.3125
|
| Fair value per warrant |
$ 0.20
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Series K Warrants January 29, 2014
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|
| Contractual life, in years |
3 years
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| Expected volatility |
152.40%
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| Risk-free interest rate |
0.39%
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| Exercise price |
$ 0.3125
|
| Fair value per warrant |
$ 0.30
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Series K Warrants February, 28 2014
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|
| Contractual life, in years |
3 years
|
| Expected volatility |
152.70%
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| Risk-free interest rate |
0.39%
|
| Exercise price |
$ 0.425
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| Fair value per warrant |
$ 0.37
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Series K Warrants June 30, 2014
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|
| Contractual life, in years |
3 years
|
| Expected volatility |
153.90%
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| Risk-free interest rate |
0.90%
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| Exercise price |
$ 0.375
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| Fair value per warrant |
$ 0.29
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