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Statements of Redeemable Convertible Preferred Stock and Stockholders' Equity (Deficit) - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-in Capital | Additional Paid-in Capital Cumulative Effect, Period of Adoption, Adjustment | Accumulated Other Comprehensive Loss | Accumulated Deficit | Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment
--- | --- | --- | --- | --- | --- | --- | ---
Stockholders’ Equity (Deficit), beginning balances at Dec. 31, 2019 | $ (72,970) | $ 1 | $ 6,054 | $ (39) |  | $ (79,025) | $ 39
Redeemable Convertible Preferred Stock, beginning balances (in shares) at Dec. 31, 2019 | 7,375,631 |  |  |  |  |  |
Redeemable Convertible Preferred Stock, beginning balances at Dec. 31, 2019 | $ 102,980 |  |  |  |  |  |
Stockholders’ Equity (Deficit), beginning balances (in shares) at Dec. 31, 2019 |  | 5,178,955 |  |  |  |  |
Accounting Standards Update [Extensible List] | Accounting Standard Update ("ASU") 2018-07 |  |  |  |  |  |
Issuance of redeemable convertible preferred stock, net of $3,138 of issuance cost | $ 72,468 |  |  |  |  |  |
Issuance of redeemable convertible preferred stock, net of $3,138 of issuance cost (in shares) | 4,200,353 |  |  |  |  |  |
Conversion of redeemable convertible preferred stock into common stock | $ 175,448 | $ 1 | 175,447 |  |  |  |
Conversion of redeemable convertible preferred stock into common stock (in shares) |  | 11,575,984 |  |  |  |  |
Conversion of redeemable convertible preferred stock into common stock | $ (175,448) |  |  |  |  |  |
Conversion of redeemable convertible preferred stock into common stock (in shares) | (11,575,984) |  |  |  |  |  |
Issuance of common stock upon initial public offering, net of issuance cost | $ 204,713 | $ 1 | 204,712 |  |  |  |
Issuance of common stock upon initial public offering, net of issuance cost (in shares) |  | 9,660,000 |  |  |  |  |
Issuance of common stock upon exercise of stock options | 857 |  | 857 |  |  |  |
Issuance of common stock upon exercise of stock options (in shares) |  | 267,044 |  |  |  |  |
Stock-based compensation expense | 4,984 |  | 4,984 |  |  |  |
Vesting of common stock warrants issued for services | 48 |  | 48 |  |  |  |
Net loss | (56,693) |  |  |  |  | (56,693) |
Stockholders’ Equity (Deficit), ending balances at Dec. 31, 2020 | $ 256,387 | $ 3 | 392,063 |  |  | (135,679) |
Redeemable Convertible Preferred Stock, ending balances (in shares) at Dec. 31, 2020 | 0 |  |  |  |  |  |
Stockholders’ Equity (Deficit), ending balances (in shares) at Dec. 31, 2020 |  | 26,681,983 |  |  |  |  |
Issuance of common stock upon exercise of stock options and warrants | $ 3,905 |  | 3,905 |  |  |  |
Issuance of common stock upon exercise of stock options and warrants (in shares) |  | 646,417 |  |  |  |  |
Issuance of common stock upon initial public offering, net of issuance cost | $ 115,090 |  | 115,090 |  |  |  |
Issuance of common stock upon initial public offering, net of issuance cost (in shares) |  | 4,875,715 |  |  |  |  |
Issuance of common stock upon exercise of stock options (in shares) | 563,387 |  |  |  |  |  |
Issuance of common stock warrant | $ 1,146 |  | 1,146 |  |  |  |
Stock-based compensation expense | 13,799 |  | 13,799 |  |  |  |
Issuance of common stock - 2020 ESPP | 433 |  | 433 |  |  |  |
Issuance of common stock - 2020 ESPP (in shares) |  | 20,409 |  |  |  |  |
Vesting of common stock warrants issued for services | 87 |  | 87 |  |  |  |
Gross unrealized loss on marketable securities | (423) |  |  |  | $ (423) |  |
Net loss | (71,317) |  |  |  | (71,317) | (71,317) |
Stockholders’ Equity (Deficit), ending balances at Dec. 31, 2021 | $ 319,107 | $ 3 | $ 526,523 |  | $ (423) | $ (206,996) |
Redeemable Convertible Preferred Stock, ending balances (in shares) at Dec. 31, 2021 | 0 |  |  |  |  |  |
Stockholders’ Equity (Deficit), ending balances (in shares) at Dec. 31, 2021 |  | 32,224,524 |  |  |  |  |

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- Definition Carrying amount, attributable to parent, of an entity's issued and outstanding stock which is not included within permanent equity. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. Includes stock with a put option held by an ESOP and stock redeemable by a holder only in the event of a change in control of the issuer. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(i)) -URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(5)) -URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1A -Subparagraph (SX 210.13-01(a)(4)(iv)) -URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(5)) -URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(i)) -URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 470 -SubTopic 10 -Section S99 -Paragraph 1B -Subparagraph (SX 210.13-02(a)(4)(iv)) -URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756 + Details
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- Definition The number of securities classified as temporary equity that have been issued and are held by the entity's shareholders. Securities outstanding equals securities issued minus securities held in treasury. Temporary equity is a security with redemption features that are outside the control of the issuer, is not classified as an asset or liability in conformity with GAAP, and is not mandatorily redeemable. Includes any type of security that is redeemable at a fixed or determinable price or on a fixed or determinable date or dates, is redeemable at the option of the holder, or has conditions for redemption which are not solely within the control of the issuer. If convertible, the issuer does not control the actions or events necessary to issue the maximum number of shares that could be required to be delivered under the conversion option if the holder exercises the option to convert the stock to another class of equity. If the security is a warrant or a rights issue, the warrant or rights issue is considered to be temporary equity if the issuer cannot demonstrate that it would be able to deliver upon the exercise of the option by the holder in all cases. Includes stock with put option held by ESOP and stock redeemable by holder only in the event of a change in control of the issuer. + 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(27)(b)) -URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682 + Details
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- Definition Value of new stock classified as temporary equity issued during the period. + References No definition available. + Details
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