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Subsequent Events - Additional Information (Details) | Mar. 27, 2020 USD ($) shares | Mar. 26, 2020 Director | Dec. 31, 2019 shares | Dec. 31, 2018 shares
--- | --- | --- | --- | ---
Subsequent Event [Line Items] |  |  |  |
Common stock, shares issued |  |  | 29,835,183 | 29,450,035
Subsequent Event |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Number of board of directors | Director |  | 3 |  |
Stock Purchase Agreement | Subsequent Event | Lincoln Park |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Value of shares issued | $ | $ 5,000,000 |  |  |
Common stock, shares issued | 461,676 |  |  |
Stock Purchase Agreement | Subsequent Event | Lincoln Park | Maximum |  |  |  |
Subsequent Event [Line Items] |  |  |  |
Value of shares issued | $ | $ 25,000,000 |  |  |
Additional commitment shares issued on pro-rata | 230,838 |  |  |

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- Definition Additional commitment shares issued. + References No definition available. + Details
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- Definition Number of board of directors. + References No definition available. + Details
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- 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. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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- Definition Detail information of subsequent event by type. User is expected to use existing line items from elsewhere in the taxonomy as the primary line items for this disclosure, which is further associated with dimension and member elements pertaining to a subsequent event. + References No definition available. + Details
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- Details
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- Details
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