Organization and Nature of Operations - Additional Information (Details) $ / shares in Units, $ in Thousands |
12 Months Ended | |||||
|---|---|---|---|---|---|---|
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Dec. 31, 2020
USD ($)
$ / shares
shares
|
Dec. 31, 2019
USD ($)
$ / shares
shares
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Nov. 16, 2020
shares
|
Nov. 15, 2020
shares
|
Jul. 14, 2018
$ / shares
shares
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Jul. 13, 2018
shares
|
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| Organization Consolidation And Presentation Of Financial Statements [Abstract] | ||||||
| Common stock, par value | $ / shares | $ 0.0001 | $ 0.0001 | $ 0.0001 | |||
| Common stock, shares authorized | 300,000,000 | 300,000,000 | 25,000,000 | 10,000,000 | ||
| Preferred stock, par value | $ / shares | $ 0.0001 | $ 0.0001 | ||||
| Preferred stock, shares authorized | 10,000,000 | 10,000,000 | ||||
| Stockholders' Equity, Reverse Stock Split | In November 2020, the board of directors approved a Reverse Stock Split ratio of 1-for-25 | |||||
| Stock split ratio | 0.04 | |||||
| Common stock, shares issued | 3,188,679 | 550,814 | 2,900,000 | 73,000,000 | ||
| Common stock, shares outstanding | 3,188,679 | 550,814 | 2,900,000 | 73,000,000 | ||
| Accumulated deficit | $ | $ 153,202 | $ 117,157 | ||||
| Net cash used in operating activities | $ | 28,304 | 33,173 | ||||
| Cash and cash equivalents | $ | $ 23,906 | $ 14,584 | ||||
| X | ||||||||||
- Definition Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of cash inflow (outflow) from operating activities, including discontinued operations. Operating activity cash flows include transactions, adjustments, and changes in value not defined as investing or financing activities. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- References No definition available.
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| X | ||||||||||
- Definition Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The maximum number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) permitted to be issued by an entity's charter and bylaws. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition The cumulative amount of the reporting entity's undistributed earnings or deficit. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Ratio applied to the conversion of stock split, for example but not limited to, one share converted to two or two shares converted to one. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Description of the reverse stock split arrangement. Also provide the retroactive effect given by the reverse split that occurs after the balance sheet date but before the release of financial statements. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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