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Significant Contracts (Detail Textuals) - USD ($) | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016
Supply Commitment [Line Items] |  |
Collaboration and research and development revenue | $ 0 | $ 0
Daiichi Sankyo |  |
Supply Commitment [Line Items] |  |
Future milestone payments payable | $ 10,000,000 |
Period for which royalties will be paid following first commercial sale of licensed products | 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 |
ManRos Therapeutics SA ("ManRos") | Collaboration, Supply and Licensing Agreements |  |
Supply Commitment [Line Items] |  |
Payment received from achieving a clinical milestone | $ 150,000 |

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- Definition Represents the notice period for the termination of license after a launch of a sapacitabine-based product, or by either party for material default. + References No definition available. + Details
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