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Warrants (Details Textual) - shares | 1 Months Ended | 12 Months Ended
--- | --- | ---
Dec. 08, 2020 | Dec. 31, 2020
Warrants (Textual) |  |
Issuance of warrants |  | 4,175,512
Securities Purchase Agreement [Member] |  |
Warrants (Textual) |  |
Warrants, description | The Company entered in a securities purchase agreement with certain institutional investors, pursuant to which the Company issued in a registered direct offering, an aggregate of 9,489,800 shares of its common stock at a price of $5.18 per share, for aggregate gross proceeds to the Company of approximately $49 million, before deducting fees to the placement agent and other estimated offering expenses payable by the Company. As part of the transaction, the institutional investors also received warrants ("Investor Warrants") for the purchase of up to 3,795,920 shares of the Company's common stock at an exercise price of $6.46 per share exercisable for 36 months from the date of issuance. In addition, the placement agent for this transaction also received warrants ("Placement Agent Warrants") for the purchase of up to 379,592 shares of the Company's common stock at an exercise price of $6.475 per share exercisable for 36 months after 6 months from the issuance. |

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