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Related Party Transactions (Details) - USD ($) $ in Millions |  | 1 Months Ended | 12 Months Ended |
--- | --- | --- | --- | ---
Dec. 29, 2017 | Jun. 30, 2016 | Dec. 31, 2018 | Dec. 31, 2017 | Feb. 28, 2017
Related Party Transaction [Line Items] |  |  |  |  |
Collaboration agreement, term |  | 3 years |  |  |
Payment for management fee |  | $ 0.1 |  |  |
Management fee expense |  |  |  | $ 0.3 |
Accrued compensation incentive |  |  |  | $ 0.1 |
Incentive fee percentage equal to post money market value |  |  | 2.00% |  | 2.00%
Incentive fee percentage equal to gross value paid by purchaser in cash |  |  | 2.00% |  |
Stock issued for incentive fee payment in connection with acquisition during period share | 119,672 |  |  |  |
General and administrative expense | $ 0.9 |  |  |  |
Equilibria Collaboration Agreement |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Management fee payable | $ 0.1 |  |  |  |
Dr. Angelos M. Stergiou | Msk License Agreement |  |  |  |  |
Related Party Transaction [Line Items] |  |  |  |  |
Percentage of ownership outstanding share capital |  |  | 1.90% | 7.80% |

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- Definition Collaboration Agreement, Term + References No definition available. + Details
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- Definition The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 + Details
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- Definition Amount of expenses related to the managing member or general partner for management of the day-to-day business functions of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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- Definition Amount paid to managing member or general partner for management of the day-to-day business functions of the limited liability company (LLC) or limited partnership (LP). + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 17 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=109223946&loc=d3e3367-108585 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 850 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6457730&loc=d3e39549-107864 + Details
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