COLLABORATIONS AND ALLIANCES (Detail Textuals) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Net revenues		$ 1,072		$ 2,299
Daiichi Sankyo Tivantinib Agreement | Phase 3 collaboration costs
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Cumulative share of phase 3 collaboration costs			$ 108,800
Cumulative share of phase 3 collaboration costs in excess of milestones amounts received			68,800
Net revenues	$ 0	600	0	1,400
Kyowa Hakko Kirin Licensing Agreement
Collaborative Arrangements and Non-collaborative Arrangement Transactions [Line Items]
Net revenues	$ 0	$ 500	$ 0	$ 900