DEFERRED REVENUE (Details) (USD $)	2 Months Ended	3 Months Ended	6 Months Ended		6 Months Ended				3 Months Ended	6 Months Ended		1 Months Ended		1 Months Ended			3 Months Ended	6 Months Ended
	Jun. 30, 2011	Jun. 30, 2012	Jun. 30, 2012	Dec. 31, 2011	Jun. 30, 2012 Completion of transfer of know-how and product development milestones	Jun. 30, 2012 Completion of transfer of know-how	Jun. 30, 2012 Development of an initial set of product codes	Jun. 30, 2012 Development of an additional set of product codes	Jun. 30, 2012 Quill Transaction	Jun. 30, 2012 Quill Transaction	Apr. 04, 2012 Quill Transaction	Apr. 30, 2012 Asset Sale and Purchase Agreement Quill Transaction	Apr. 04, 2012 Asset Sale and Purchase Agreement Quill Transaction	Apr. 30, 2012 Manufacturing and Supply Agreement Quill Transaction	Mar. 31, 2012 License Agreement Cook	Feb. 29, 2012 License Agreement Cook	Jun. 30, 2012 License Agreement Cook	Jun. 30, 2012 License Agreement Cook	Feb. 03, 2012 License Agreement Cook
Deferred revenue
Sales milestone fee received upon Cook's achievement of certain targeted level of sales of Zilver PTX																$ 4,000,000
Deferred revenue									20,000,000	20,000,000							3,800,000	3,800,000	4,000,000
Percentage to be applied to future Zilver PTX royalties receivable to derive the amount by which the sales milestone fee will be drawn down by periodically															50.00%
Revenue recognition period					3 years
Manufacturing equipment revenue recognized		400,000
Revenue Recognized																	100,000	100,000
Deferred revenue, current portion		6,205,000	6,205,000	496,000					5,400,000	5,400,000							800,000	800,000
Deferred revenue classified as non-current		18,069,000	18,069,000	3,771,000													3,000,000	3,000,000
Initial cash payment									20,000,000	20,000,000	20,400,000		20,400,000
Future consideration														12,000,000
Additional contingent cash consideration					27,000,000	5,000,000	22,000,000	15,000,000		42,000,000		30,000,000
Proceeds from the sale of certain manufacturing equipment	$ 2,624,000	$ 400,000	$ 976,000						$ 400,000