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v3.21.2

Equity and Warrants - Warrants activity (Details) - $ / shares |  | 12 Months Ended
--- | --- | ---
Dec. 19, 2019 | Dec. 31, 2020
Class of Stock [Line Items] |  |
Warrants to purchase | 403,101 |
Common Stock |  |
Class of Stock [Line Items] |  |
Beginning balance |  | 2,095,074
Warrants granted |  | 73,538
Warrants cancelled |  | 2,168,612
Ending balance |  |
Beginning balance, Weighted- Average Exercise Price |  | $ 2.02
Warrants granted, Weighted- Average Exercise Price |  | 1.77
Warrants cancelled, Weighted- Average Exercise Price |  | $ 2.02
Ending balance, Weighted- Average Exercise Price |  |
Redeemable Convertible Preferred Stock |  |
Class of Stock [Line Items] |  |
Beginning balance |  | 965,157
Warrants granted |  | 209,384
Warrants cancelled |  | 1,174,541
Ending balance |  |
Beginning balance, Weighted- Average Exercise Price |  | $ 4.39
Warrants granted, Weighted- Average Exercise Price |  | 5.62
Warrants cancelled, Weighted- Average Exercise Price |  | $ 4.60
Ending balance, Weighted- Average Exercise Price |  |

X
- Definition Number of warrants or rights cancelled. + References No definition available. + Details
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X
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X
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- Definition Exercise price per share or per unit of warrants or rights outstanding. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 + Details
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X
- Definition The number of warrants issued in exchange for the original debt being converted in a noncash (or part noncash) transaction. "Part noncash" refers to that portion of the transaction not resulting in cash receipts or cash payments in the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4304-108586 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=121583591&loc=d3e4332-108586 + Details
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