Other License Agreements and Acquired Product Rights (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended		1 Months Ended				1 Months Ended					1 Months Ended	12 Months Ended		0 Months Ended	1 Months Ended	12 Months Ended
	Feb. 28, 2012	Dec. 31, 2012 Tolmar Notes [Member]	Jul. 31, 2009 North American [Member]	Dec. 31, 2012 North American [Member]	Sep. 30, 2007 North American [Member]	Sep. 30, 2007 North American [Member] Due within 30 days from end of quarter in which net sales reach 30 million [Member]	Jun. 30, 2010 Non US [Member]	Mar. 31, 2007 Non US [Member]	Dec. 31, 2011 Non US [Member]	Aug. 31, 2006 Non US [Member]	Aug. 31, 2006 Non US [Member] To be paid within 30 days of regulatory approval of the first product [Member]	Jun. 30, 2010 Kunwha License Agreement [Member]	Dec. 31, 2012 Kunwha License Agreement [Member]	May 31, 2010 Kunwha License Agreement [Member]	Oct. 07, 2010 TTY License and Supply Agreement [Member]	Nov. 30, 2011 TTY License and Supply Agreement [Member]	Dec. 31, 2012 TTY License and Supply Agreement [Member]
Other License Agreements and Acquired Product Rights (Textual) [Abstract]
Expiration date of the Agreement													Jul. 23, 2027
Upfront payment												$ 0.3			$ 0.3
Up-front payment net of tax												0.25
Milestone payments										0				1.3
Milestone payments net of tax														1.1	1.3
Term of the agreement																	15 years
Milestone payment received																0.3
Purchase price of rights and assets					7					3
Cash paid as consideration					3					1
Promissory note to be paid					4.00	2.00			0.25	2.00	1.00
Promissory note paid			2.00				0.75	1.00
Cumulative net sales for determining payment of promissory note					30
Amount outstanding under the Tolmar note				2
Notes Settlement amount	1.05
Notes Issued Outstanding Amount		$ 2