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Convertible Securities (Details) (USD $)
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1 Months Ended | 3 Months Ended | 12 Months Ended | 1 Months Ended | 1 Months Ended | 1 Months Ended | 1 Months Ended | 12 Months Ended | 1 Months Ended | 12 Months Ended | 12 Months Ended | |||||||||||||||||||
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Jun. 30, 2010
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Jun. 30, 2010
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Dec. 31, 2012
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Dec. 31, 2011
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Dec. 31, 2010
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Jun. 30, 2010
Series A Preferred Stock [Member]
Montaur [Member]
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Dec. 31, 2008
Series A Preferred Stock [Member]
Montaur [Member]
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Dec. 31, 2012
Series B Preferred Stock [Member]
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Dec. 31, 2011
Series B Preferred Stock [Member]
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Jul. 31, 2012
Series B Preferred Stock [Member]
Montaur [Member]
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May 31, 2011
Series B Preferred Stock [Member]
Montaur [Member]
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Jun. 30, 2010
Series B Preferred Stock [Member]
Montaur [Member]
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Nov. 30, 2012
Series B Preferred Stock [Member]
Platinum [Member]
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Jun. 30, 2010
Series B Preferred Stock [Member]
Additional Issuance In Consideration For Agreement [Member]
Montaur [Member]
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Dec. 31, 2012
Series C Preferred Stock [Member]
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Dec. 31, 2011
Series C Preferred Stock [Member]
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Jun. 30, 2010
Series C Preferred Stock [Member]
Bupp Investors [Member]
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Jul. 31, 2012
Common Stock [Member]
Montaur [Member]
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May 31, 2011
Common Stock [Member]
Montaur [Member]
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Dec. 31, 2012
Common Stock [Member]
Bupp Investors [Member]
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Nov. 30, 2012
Common Stock [Member]
Platinum [Member]
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Jun. 30, 2010
Convertible Preferred Stock [Member]
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Dec. 31, 2012
Series X Warrants [Member]
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Dec. 31, 2008
Series Y Warrants [Member]
Montaur [Member]
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Dec. 31, 2012
Series AA Warrants [Member]
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Dec. 31, 2012
Series GG Warrants [Member]
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Jun. 30, 2010
Bupp Note [Member]
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Jun. 30, 2010
Montaur Series A Note [Member]
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Jul. 31, 2009
Montaur Series A Note [Member]
Series AA Warrants [Member]
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Apr. 30, 2008
Montaur Series B Note [Member]
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| Debt Instrument [Line Items] | ||||||||||||||||||||||||||||||
| Debt instrument, face amount | $ 1,000,000 | $ 7,000,000 | $ 3,000,000 | |||||||||||||||||||||||||||
| Debt instrument, stated interest rate | 2.80% | 7.00% | 10.00% | 10.00% | 10.00% | |||||||||||||||||||||||||
| Warrants, exercise price | $ 0.68 | $ 0.46 | $ 0.575 | $ 0.97 | $ 2.1 | $ 0.97 | ||||||||||||||||||||||||
| Warrants, expiration date | Dec. 31, 2013 | Jul. 23, 2014 | Dec. 29, 2016 | |||||||||||||||||||||||||||
| Warrants, number of securities called by warrants | 6,000,000 | 2,400,000 | ||||||||||||||||||||||||||||
| Preferred stock, shares exchanged | 3,000 | 10,000 | ||||||||||||||||||||||||||||
| Stock issued during period, shares | 10,000 | 918 | 1,000 | |||||||||||||||||||||||||||
| Preferred stock, dividend rate, percentage | 8.00% | 10.00% | ||||||||||||||||||||||||||||
| Convertible preferred stock, shares issuable upon conversion | 6,000,000 | 22,687,260 | 32,700,000 | 1,300,000 | 3,226,000 | |||||||||||||||||||||||||
| Common stock, shares issued upon conversion | 3,226,000 | |||||||||||||||||||||||||||||
| Loss on extinguishment of debt | (41,700,000) | (41,717,380) | ||||||||||||||||||||||||||||
| Write-off of derivative liabilities | 966,000 | 966,000 | ||||||||||||||||||||||||||||
| Stock conversion, shares converted | 3,063 | 917 | 3,226,000 | 10,016,010 | 2,998,590 | |||||||||||||||||||||||||
| Shares repurchased | 3,001,860 | |||||||||||||||||||||||||||||
| Preferred stock, shares outstanding | 6,938 | 9,083 | 0 | 1,000 | ||||||||||||||||||||||||||
| Interest expense related to debt | 545,000 | 4,000 | 16,000 | |||||||||||||||||||||||||||
| Deemed dividend | $ 8,000,000 | $ 0 | $ 0 | $ 8,000,000 | ||||||||||||||||||||||||||