Fair Value Measurements & Derivative Instruments - Additional Information (Detail) (USD $)	1 Months Ended	12 Months Ended		1 Months Ended	12 Months Ended		12 Months Ended
	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