Organization and Description of Business Operations - Additional Information (Details) - USD ($) $ / shares in Units, $ in Thousands |
1 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Nov. 30, 2019 |
Mar. 31, 2018 |
Dec. 31, 2019 |
Dec. 31, 2018 |
|
| Retained Earnings (Accumulated Deficit) | $ (120,111) | $ (95,397) | ||
| Common Stock [Member] | ||||
| Shares Issued, Price Per Share | $ 3.52 | $ 4.33 | ||
| Stock Issued During Period Shares Common Shares For At The Market Offering | 2,273,189 | 1,841,774 | ||
| Stock Issued During Period Value Common Shares For At The Market Offering Gross | $ 8,000 | $ 8,000 | ||
| Stock Issued During Period Value Common Shares For At The Market Offering Net | $ 7,800 | |||
| Underwritten Public Offering [Member] | ||||
| Stock Issued During Period, Shares, New Issues | 15,400,000 | 5,290,000 | ||
| Shares Issued, Price Per Share | $ 1.27 | $ 4.35 | ||
| Stock Issued During Period, Value, New Issues | $ 19,600 | $ 23,000 | ||
| Proceeds from Issuance Underwritten Public Offering | 17,600 | 20,800 | ||
| Payments of Stock Issuance Costs | $ 2,000 | $ 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.
|
| X | ||||||||||
- Definition Total number of shares issued during the period for at the market offering. No definition available.
|
| X | ||||||||||
- Definition Aggregate gross value of common shares issued during the period for at the market offering. No definition available.
|
| X | ||||||||||
- Definition Aggregate value of common shares issued during the period for at the market offering. No definition available.
|
| X | ||||||||||
- Definition The cash outflow for cost incurred directly with the issuance of an equity security. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition Per share or per unit amount of equity securities issued. No definition available.
|
| X | ||||||||||
- Definition Number of new stock issued during the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- 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://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|