Organization and Description of Business Operations (Details Textual) - USD ($) $ / shares in Units, $ in Thousands |
1 Months Ended | 3 Months Ended | ||
|---|---|---|---|---|
Mar. 31, 2018 |
Mar. 31, 2018 |
Mar. 31, 2017 |
Dec. 31, 2017 |
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| Retained Earnings (Accumulated Deficit) | $ (67,795) | $ (67,795) | $ (59,030) | |
| Payments of Stock Issuance Costs | $ 2,167 | $ 0 | ||
| Underwritten Public Offering [Member] | ||||
| Stock Issued During Period, Shares, New Issues | 5,290,000 | |||
| Shares Issued, Price Per Share | $ 4.35 | $ 4.35 | ||
| Stock Issued During Period, Value, New Issues | $ 23,000 | |||
| Proceeds from Issuance Underwritten Public Offering | 20,800 | |||
| Payments of Stock Issuance Costs | $ 2,200 | |||
| X | ||||||||||
- Definition The cash inflow associated with the amount received from entity's underwritten offering of stock to the public. No definition available.
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- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Per share or per unit amount of equity securities issued. No definition available.
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- Definition Number of new stock issued during the period. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Definition Equity impact of the value of new stock issued during the period. Includes shares issued in an initial public offering or a secondary public offering. Reference 1: http://www.xbrl.org/2003/role/presentationRef
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- Details
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