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Fair Value Measurements & Derivative Instruments - Additional Information (Detail) (USD $) | 1 Months Ended | 12 Months Ended |  | 1 Months Ended | 12 Months Ended |  | 12 Months Ended
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Jan. 31, 2011 | Sep. 30, 2012 | Jun. 17, 2010 | Jan. 31, 2011 Unidym, Inc. [Member] | Sep. 30, 2012 Unidym, Inc. [Member] | Sep. 30, 2011 Unidym, Inc. [Member] | Sep. 30, 2012 Ablaris Therapeutics, Inc. [Member]
Fair Value Measurements Disclosure [Line Items] |  |  |  |  |  |  |
Non cash consideration received in sale of interest in subsidiary, bonds | $ 2,500,000 |  |  | $ 2,500,000 |  |  |
Bond convertible conversion price per share |  |  |  | $ 2.00 |  |  |
Derivative fair value related to third party |  |  |  | 26,310 | 10,645 | 6,854 |
Gain from change in value of the derivative asset, net of the derivative liability |  | 85,334 |  |  |  |  |
Gain from change in value of the derivative asset |  |  |  |  | 89,125 |  |
Warrants issued to acquire Common Stock |  |  | 329,649 |  |  |  |
Non cash gain (loss) from change in fair value of derivative liability |  | 281,038 |  |  |  |  | 20,520
Duration of 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 |  |  |  |  |  |  | 0.01
Number of exchange rights sold |  |  |  |  |  |  | 675,000
Contingent consideration |  | $ 173,621 |  |  |  |  |

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