Nature of Business and Summary of Significant Accounting Policies (Details)	12 Months Ended
	Dec. 31, 2012
Licenses [Member]
Intangible assets with finite useful lives, amortized over estimated useful lives
Estimated Useful Lives	14 years
EU Product rights [Member]
Intangible assets with finite useful lives, amortized over estimated useful lives
Estimated Useful Lives	11 years
Maximum [Member] | U.S. Product right [Member]
Intangible assets with finite useful lives, amortized over estimated useful lives
Estimated Useful Lives	12 years
Minimum [Member] | U.S. Product right [Member]
Intangible assets with finite useful lives, amortized over estimated useful lives
Estimated Useful Lives	10 years