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Fair Value Measurements & Derivative Instruments - Additional Information (Detail) (USD $) | 9 Months Ended |  |  |  |  |  | 9 Months Ended | 12 Months Ended | 1 Months Ended | 9 Months Ended |
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Jun. 30, 2013 | Jan. 31, 2013 | Dec. 31, 2012 | Sep. 30, 2012 | Sep. 30, 2011 | Jun. 30, 2010 | Jun. 30, 2013 Warrants | Sep. 30, 2012 Warrants | Jan. 31, 2011 Unidym, Inc. | Jun. 30, 2013 Unidym, Inc. | Jun. 30, 2013 Ablaris Therapeutics, Inc. | Jun. 30, 2013 Wisepower
Fair Value Measurements Disclosure [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Non cash consideration received in sale of interest in subsidiary, bonds |  |  |  |  |  |  |  |  | $ 2,500,000 |  |  |
Bond convertible conversion price per share |  |  |  |  |  |  |  |  | $ 2.00 |  |  |
Derivative assets | 30,011 |  |  | 280,261 |  |  |  |  |  |  |  | 0
Loss from change in fair value of the derivative asset |  |  |  |  |  |  |  |  |  | 250,250 |  |
Warrants issued to acquire Common Stock |  | 833,530 | 912,543 |  |  | 329,649 |  |  |  |  |  |
Warrants outstanding | 322,150 |  |  |  |  |  |  |  |  |  |  |
Non-cash gain (loss) from change in fair value of the derivative liability |  |  |  |  |  |  | (465,869) | (297,767) |  |  | 9,877 |
Duration of exchange rights | 7 years |  |  |  |  |  |  |  |  |  |  |
Exchange right convertible conversion ratio for first year |  |  |  |  |  |  |  |  |  |  | 0.06 |
Exchange right convertible conversion ratio for second year |  |  |  |  |  |  |  |  |  |  | 0.04 |
Exchange right convertible conversion ratio for third year |  |  |  |  |  |  |  |  |  |  | 0.03 |
Exchange right convertible conversion ratio for fourth year |  |  |  |  |  |  |  |  |  |  | 0.02 |
Exchange right convertible conversion ratio for fifth year and beyond |  |  |  |  |  |  |  |  |  |  | 0.01 |
Number of exchange right sold |  |  |  |  |  |  |  |  |  |  | 675,000 |
Contingent consideration | $ 173,621 |  |  | $ 173,621 | $ 0 |  |  |  |  |  |  |

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