PFIZER AGREEMENT TRANSITION (Details) (Pfizer, XIAFLEX, USD $)	0 Months Ended	3 Months Ended
	Nov. 06, 2012	Mar. 31, 2013 item
Pfizer | XIAFLEX
Collaborations and license agreements
Cost of reversion of rights held and responsibility for regulatory activities		$ 0
Period for sell of remaining inventory after agreement termination date	6 months
Number of additional lots of bulk product, which must be delivered for engagement of additional packaging and labeling		1