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Fair Value Measurements & Derivative Instruments - Additional Information (Detail) (USD $) | 3 Months Ended |  |  |  | 1 Months Ended | 3 Months Ended |  | 3 Months Ended
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Dec. 31, 2012 | Dec. 12, 2012 | Sep. 30, 2012 | Jun. 17, 2010 | Jan. 31, 2011 Unidym, Inc. [Member] | Dec. 31, 2012 Unidym, Inc. [Member] | Sep. 30, 2012 Unidym, Inc. [Member] | Dec. 31, 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 |  |  |
Bond convertible conversion price per share |  |  |  |  | $ 2.00 |  |  |
Fair value of derivative relating to third party |  |  |  |  | 26,310 | 0 | 10,645 |
Loss from change in value of the derivative asset, net of the derivative liability | 239,605 |  |  |  |  |  |  |
Derivative asset | 30,011 |  | 280,261 |  |  | 0 |  |
Loss from change in fair value of the derivative asset |  |  |  |  |  | 250,250 |  |
Warrants issued to acquire Common Stock |  | 912,543 |  | 329,649 |  |  |  |
Warrants outstanding | 322,150 |  |  |  |  |  |  |
Non-cash gain (loss) from change in fair value of the derivative liability | 274,451 |  |  |  |  |  |  | 9,428
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 rights sold |  |  |  |  |  |  |  | 675,000
Contingent consideration | $ 173,621 |  | $ 173,621 |  |  |  |  |

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