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Stockholders' Equity - Common Stock Issuances - Additional Information (Details) - $ / shares | 12 Months Ended |
--- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018
Stockholders Equity Note [Line Items] |  |
Common stock, shares issued (in shares) | 67,091 | 14,715
Common stock, par value (in dollars per share) | $ 0.01 | $ 0.01
Common Stock [Member] |  |
Stockholders Equity Note [Line Items] |  |
Convertible preferred stock, shares upon Conversion | 13,455 |
Common stock, par value (in dollars per share) | $ 0.01 |
Series E and E1 Convertible Preferred Stock [Member] |  |
Stockholders Equity Note [Line Items] |  |
Common stock, shares issued (in shares) | 565 |

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- Definition Face amount or stated value per share of common stock. + 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 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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