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Accrued and Other Current Liabilities (Detail Textuals) | 12 Months Ended
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Dec. 31, 2017 USD ($)
ManRos Therapeutics SA ("ManRos") | Collaboration, Supply and Licensing Agreements |
Accrued And Other Current Liabilities [Line Items] |
Payment received from achieving a clinical milestone | $ 150,000

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- Definition The amount of consideration recognized during the period for the milestone or milestones. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 605 -SubTopic 28 -Section 50 -Paragraph 2 -Subparagraph (e) -URI http://asc.fasb.org/extlink&oid=68058744&loc=SL6892177-166501 + Details
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