COLLABORATIONS AND ALLIANCES (Detail Textuals 1) (USD $)	1 Months Ended	3 Months Ended		12 Months Ended
	Nov. 30, 2011	Mar. 31, 2013	Mar. 31, 2012	Dec. 31, 2011
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Research and development revenue		$ 5,661,000	$ 8,498,000	$ 47,310,000
Daiichi Sankyo ARQ 092 Agreement | License Agreement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Notice period for termination of agreement		90 days
Upfront fee on ARQ 092 Agreement	10,000,000
Research and development revenue		600,000	900,000	10,000,000
Deferred Revenue		$ 200,000