Other License Agreements and Acquired Product Rights (Details) (USD $) In Millions, unless otherwise specified	1 Months Ended		0 Months Ended	1 Months Ended				6 Months Ended		0 Months Ended	1 Months Ended	6 Months Ended	12 Months Ended
	Jun. 30, 2010	May 31, 2010	Jan. 06, 2012 North American [Member]	Jul. 31, 2009 North American [Member]	Jan. 05, 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, 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]	Jun. 30, 2012 TTY License and Supply Agreement [Member]	Dec. 31, 2011 License Amendment with CDC [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									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
Cash paid as consideration						3
Promissory note to be paid						4	2
Promissory note paid				2
Cumulative net sales for determining payment of promissory note						30
Payment to settle outstanding balance of Tolmar note			1.05
Amount outstanding under the Tolmar note					2
Additional cost of product royalties													0.3
Overpayment of royalty expense													$ 1.1