COLLABORATIONS AND ALLIANCES (Detail Textuals 3) (USD $)	3 Months Ended		12 Months Ended	0 Months Ended	1 Months Ended	3 Months Ended		1 Months Ended
	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2011	May 07, 2007 Kyowa Hakko Kirin Licensing Agreement	Apr. 27, 2007 Kyowa Hakko Kirin Licensing Agreement	Mar. 31, 2013 Kyowa Hakko Kirin Licensing Agreement	Mar. 31, 2012 Kyowa Hakko Kirin Licensing Agreement	Sep. 30, 2010 Kyowa Hakko Kirin Licensing Agreement Phase Two trial Kyowa Hakko Kirin	Aug. 31, 2011 Kyowa Hakko Kirin Licensing Agreement Phase Three Attention Trial Asia	Feb. 29, 2008 Kyowa Hakko Kirin Licensing Agreement Kyowa Hakko Kirin
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Upfront payment received				$ 27,000,000	$ 3,000,000
Upfront and possible regulatory milestone payments					123,000,000
Cash upfront licensing payments					30,000,000
Milestone payment received								5,000,000	10,000,000	3,000,000
Percentage of minimum royalties expected to received										mid-teen percent
Percentage of maximum royalties expected to received										low-twenty percent
Notice period for termination of contract						90 days
Research and development revenue	5,661,000	8,498,000	47,310,000			1,400,000	1,400,000
Deferred Revenue						17,500,000
Payment received on completion of one time research project	$ 1,750,000