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COMMITMENTS AND CONTINGENCIES (Details) (Daiichi Sankyo, USD $)
In Millions, unless otherwise specified
6 Months Ended
Jun. 30, 2013
Daiichi Sankyo
 
Licensing Agreements  
Future milestone payments payable $ 10.0
Period for which royalties will be paid following the first commercial sale of licensed products in the country 10 years
Notice period for termination of license by the entity for technical, scientific, efficacy, safety, or commercial reasons 6 months
Notice period for termination of license after launch of a sapacitabine-based product by the entity, or by either party for material default 12 months