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Reserved for Future Issuance (Details) - shares |  | 6 Months Ended |
--- | --- | --- | ---
Jun. 02, 2021 | Jun. 30, 2021 | Dec. 31, 2020
Common Stock |  |  |
Number of shares reserved for future issuance |  | 18,996,948 | 9,646,540
Warrants for the purchase of common stock |  |  |
Common Stock |  |  |
Number of shares reserved for future issuance |  | 9,183,885 | 6,193,749
Options outstanding to purchase Common Stock |  |  |
Common Stock |  |  |
Number of shares reserved for future issuance |  | 7,930,334 | 1,367,667
Options available for future issuance to purchase Common Stock |  |  |
Common Stock |  |  |
Number of shares reserved for future issuance |  | 1,697,308 | 1,936,173
Shares reserved for the employee stock purchase plan |  |  |
Common Stock |  |  |
Number of shares reserved for future issuance |  | 185,421 | 148,951
Series X redeemable convertible preferred stock |  |  |
Common Stock |  |  |
Preferred stock, outstanding (in shares) |  | 32,545 | 0
Number of shares of common stock into which each share of Series X Preferred Stock may be converted | 1,000 | 1,000 |

X
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X
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X
- Definition Aggregate number of common shares reserved for future issuance. + 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=120391452&loc=d3e13212-122682 + Details
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X
- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + 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(28)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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X
- Details
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X
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X
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X
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