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Stockholders' Deficit (Details Textual) (USD $) | 3 Months Ended | 12 Months Ended |  |  |  | 3 Months Ended |  | 3 Months Ended |  | 3 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Mar. 31, 2013 | Mar. 31, 2012 | Dec. 31, 2012 | Jun. 03, 2010 | Jan. 16, 2008 | Aug. 17, 2007 | Sep. 30, 2012 Derivative warrants [Member] Investors | Aug. 17, 2007 Restricted stock units (RSUs) [Member] | Mar. 31, 2013 Common Stock [Member] | Sep. 30, 2012 Common Stock [Member] | Dec. 31, 2012 Common Stock [Member] | Sep. 30, 2012 Series G Convertible Preferred Stock [Member]
Stockholder's Deficit (Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Common stock, shares value representing payment for principal | $ 7,860 |  | $ 7,542 |  |  |  |  |  | $ 3,130,435 |  | $ 4,262,527 |
Common stock shares issued employee stock incentive plan |  |  |  |  |  |  |  |  |  |  |  | 8,900
Common stock exercise of outstanding warrant | 2,010,500 |  |  |  |  |  | 287,500 |  |  |  |  |
Shares issued from warrant conversion |  |  |  |  |  |  |  |  | 2,010,500 | 287,500 |  |
Shares authorized for stock-based compensation |  |  |  | 3,000,000 | 2,500,000 | 2,500,000 |  | 500,000 |  |  |  |
Common stock, shares issued | 78,596,929 |  | 75,416,203 |  |  |  |  |  | 1,089,578 |  | 1,441,013 | 140,000
Number of accredited investors to whom common stock stock issued |  |  |  |  |  |  | 4 |  |  |  |  |
Stockholder's Deficit (Additional Textual) [Abstract] |  |  |  |  |  |  |  |  |  |  |  |
Number of stock incentive plans | 2 |  |  |  |  |  |  |  |  |  |  |
Stock incentive plan expiration date |  |  | Aug. 17, 2007 |  |  |  |  |  |  |  |  |
Exercise price of incentive option granted |  |  | Exercise price of any incentive option granted to an eligible employee owning more than 10% of our outstanding common stock must not be less than 110% of fair market value on the date of the grant. |  |  |  |  |  |  |  |  |
Share-based compensation | $ 688,580 | $ 388,419 |  |  |  |  |  |  |  |  |  |
Weighted average estimated fair value of stock options | $ 1.44 | $ 1.43 |  |  |  |  |  |  |  |  |  |
Eligible employee threshold percentage | 10.00% |  |  |  |  |  |  |  |  |  |  |
Purchase price of common stock percentage | 110.00% |  |  |  |  |  |  |  |  |  |  |

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