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Subsequent Events (Details) (USD $) | 9 Months Ended |  |  |  |  | 0 Months Ended | 1 Months Ended |  | 0 Months Ended | 1 Months Ended | 0 Months Ended | 1 Months Ended | 0 Months Ended
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Sep. 30, 2012 | Sep. 30, 2011 | Jun. 30, 2012 | Dec. 31, 2011 | Nov. 19, 2010 | Oct. 31, 2009 | Nov. 13, 2012 Sale [Member] | Aug. 31, 2012 Warrant holder A [Member] | Dec. 31, 2009 Warrant holder A [Member] | Oct. 10, 2012 Warrant holder A [Member] Warranty Exercises [Member] | Sep. 30, 2012 Underwriting Offering [Member] | Jul. 31, 2012 Underwriting Offering [Member] | Apr. 30, 2012 Underwriting Offering [Member] | Mar. 31, 2012 Underwriting Offering [Member] | Oct. 31, 2012 Underwriting Offering [Member] Warranty Exercises [Member] | Nov. 19, 2010 Series E Seven Percent Senior Convertible Preferred Stock [Member] | Oct. 25, 2012 Series E Seven Percent Senior Convertible Preferred Stock [Member] Redemption of Preferred Stock [Member] | Nov. 07, 2012 Restricted Stock Private Placement [Member] Issuance of Equity [Member] | Aug. 23, 2012 Aspire Capital Purchase Agreement [Member] | Nov. 12, 2012 Aspire Capital Purchase Agreement [Member] Issuance of Equity [Member] | Nov. 13, 2012 Suzhou Erye Pharmaceuticals Company Ltd. [Member] Sale [Member] | Nov. 13, 2012 Chief Executive Officer [Member] New Contract [Member]
Subsequent Event [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Warrants Exercised |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 690,311 |  |  |  |  |  |  |
Class of Warrant or Right, Exercise Price of Warrants or Rights |  |  |  |  |  |  |  | 0.51 | 2.50 | 1.45 | 0.51 | 0.51 |  | 0.51 | 0.51 |  |  |  |  |  |  |
Proceeds from Warrant Exercises | $ 5,925,931 | $ 0 |  |  |  |  |  |  |  |  | $ 700,000 | $ 1,600,000 |  |  | $ 352,000 |  |  |  |  |  |  |
Warrant Inducement Per Share |  |  |  |  |  |  |  |  |  |  | $ 0.03 |  |  |  | $ 0.03 |  |  |  |  |  |  |
Class of Warrant or Right, Number of Securities Called by Warrants or Rights |  |  |  |  |  |  |  | 2,100,000 |  | 225,000 |  |  |  |  |  |  |  |  |  |  |  |
Proceeds from Issuance of Warrants |  |  |  |  |  |  |  | 1,100,000 |  | 326,250 |  |  |  |  |  |  |  |  |  |  |  |
Inducement Fee Calculation, Per Share Market Price |  |  |  |  |  |  |  |  |  | $ 0.72 |  |  |  |  |  |  |  |  |  |  |  |
Stock Redeemed or Called During Period, Shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,351,558 |  |  |  |  |
Preferred Stock, Dividend Rate, Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.00% | 7.00% |  |  |  |  |
Preferred stock, par value | $ 0.01 |  |  | $ 0.01 | $ 0.01 |  |  |  |  |  |  |  |  |  |  |  | $ 0.01 |  |  |  |  |
Stock Redeemed or Called During Period, Value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3,400,000 |  |  |  |  |
Stock Redeemed or Called During Period, Value from Escrow |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,500,000 |  |  |  |  |
Committment to Purchase Reporting Entity Common Stock, Value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 20,000,000 |  |  |
Common Stock, Shares, Issued | 155,141,086 |  |  | 109,329,587 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2,300,000 |  |
Stock Issued During Period, Shares, New Issues |  |  |  |  |  |  |  |  |  |  |  |  | 2,000,000 | 15,000,000 |  |  |  | 833,333 |  |  |  |
Sale of Stock, Price Per Share |  |  |  |  | $ 0.945 |  |  |  |  |  |  |  |  |  |  |  |  | $ 0.60 |  |  |  |
Stock Issued During Period, Value, New Issues | 12,160,227 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 500,000 |  | 1,500,000 |  |
Equity Method Investment, Ownership Percentage |  |  | 51.00% |  |  | 51.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 51.00% |
Divestiture, Purchase Price, Cash Portion |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12,280,000 |
Divestiture, Return of Common Stock, Shares |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,040,000 |
Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period |  |  |  |  |  |  | 1,170,000 |  |  |  |  |  |  |  |  |  |  |  |  |  | 1,170,000 |
Warrants Cancelled |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 640,000 |
Extension of Employment Agreement (in years) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2 years
Annual Base Salary |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 495,000
Cash Bonus, Target Percent of Annual Base Salary For Progress Toward Stated Objectives |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00%
Cash Bonus, Percent of Annual Base Salary For Extraordinary Performance |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00%
Duration of COBRA Premiums Following Termination of Employment (in years) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 year
Stock Options Vesting Period Following Termination of Employment (in months) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 12 months
Stock Options Exercisable Period Following Termination of Employment (in years) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 years
Duration Of COBRA Premiums Following Termination Of Employment With Cause (in years) |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1 year

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