Agreement with Procaps S.a. - Additional Information (Detail) (USD $)	3 Months Ended	9 Months Ended
	Sep. 30, 2012	Sep. 30, 2012	Dec. 31, 2011	Oct. 18, 2011 Y
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Deferred revenue			$ 200,000
Extended term of agreement				5
Deferred revenue	$ 200,000	$ 200,000