Significant Accounting Policies (Details Textual) - USD ($) |
1 Months Ended | 11 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|---|
Sep. 30, 2017 |
Jul. 31, 2017 |
Sep. 30, 2016 |
Oct. 31, 2015 |
Dec. 31, 2015 |
Dec. 31, 2017 |
Dec. 31, 2016 |
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| Stock Issued During Period, Shares, New Issues | 250,000 | ||||||
| Preferred Stock, Dividend Rate, Percentage | 2.50% | ||||||
| Research and Development in Process | $ 3,040,000 | $ 1,103,000 | $ 49,000 | ||||
| Debt Instrument, Decrease, Forgiveness | $ 3,000,000 | ||||||
| Payments to Acquire Investments | $ 5,000,000 | $ 5,000,000 | 0 | 10,000,000 | 0 | ||
| Short-term Investments | $ 10,000,000 | 0 | |||||
| Fortress Biotech, Inc [Member] | |||||||
| Annual Fee On Diluted Outstanding Equity Percentage | 2.50% | ||||||
| Research and Development Asset Acquired Other than Through Business Combination, Fair Value Acquired | $ 40,000 | $ 1,100,000 | $ 49,000 | ||||
| X | ||||||||||
- Definition It represents the annual fee percentage on diluted outstanding equity. No definition available.
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- Definition Decrease for amounts of indebtedness forgiven by the holder of the debt instrument. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cash outflow associated with the purchase of all investments (debt, security, other) during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The percentage rate used to calculate dividend payments on preferred stock. No definition available.
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- Definition The fair value of capitalized costs of a research and development nature that were acquired during the period in a transaction other than a business combination. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The amount of purchased research and development assets that are acquired in a business combination have no alternative future use and are therefore written off in the period of acquisition. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Amount of investments including trading securities, available-for-sale securities, held-to-maturity securities, and short-term investments classified as other and current. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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