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Commitments and Contingencies | 9 Months Ended
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Sep. 30, 2021
Commitments And Contingencies Disclosure [Abstract] |
Commitments and Contingencies | 9. Commitments and Contingencies Notes Payable-Related Party In January 2019, the Company issued an unsecured promissory note to borrow up to $0.5 million to a co-founder (the “January Note”) for working capital. The January Note bore interest at prime plus 4.5%, was scheduled to mature on or before January 30, 2021 and included a final payment of 3% on the amounts advanced at maturity. In February and March 2019, the Company borrowed an aggregate of $0.2 million under the January Note with interest payable at 10% per annum. The Company recorded an immaterial amount of debt issuance costs associated with the January Note. The debt issuance costs and final payment for the advances were amortized to interest expense using the effective interest rate method over the loan term. The principal and interest payable on the January Note were repaid in full in 2020. In November 2019, the Company issued an unsecured promissory note to borrow up to $0.5 million to a co-founder (the “November Note”) for working capital. The November Note bore interest at prime plus 4.5% and matured on or before January 1, 2022 and included a final payment of 3% on the amounts advanced at maturity. In December 2019 and January 2020, the Company borrowed a total of $0.4 million under the November Note with interest payable at 9.25% per annum. The final payment on the advances was amortized to interest expense using the effective interest rate method over the loan term. The principal and interest payable on the November Note were repaid in full in 2020. Convertible Notes In May and July 2018, the Company issued $0.3 million of convertible notes to a co-founder for cash with a maturity date on or after February 5, 2021, if not converted earlier. In February 2019, the Company issued an additional $0.2 million of convertible notes to consultants for services rendered with a maturity date on or after May 16, 2020, if not converted earlier. The convertible notes bore interest of 8% per annum and were convertible into equity securities sold at the next financing at 80% of the selling price per share of such equity financing. The conversion features of the convertible notes were recorded as a discount to the notes payable at issuance and amortized as interest expense over the loan term using the effective interest rate method. In February 2020, the outstanding principal and accrued interest of the convertible notes totaling $0.5 million were converted into 301,685 shares of the Company’s Series A convertible preferred stock at $1.65816 per share. See Note 11 for further discussion. Contingencies From time to time, the Company may become subject to claims or suits arising in the ordinary course of business. The Company accrues a liability for such matters when it is probable that the future expenditures will be made and such expenditures can be reasonably estimated. The Company had no such contingent liabilities as of September 30, 2021 or December 31, 2020.

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- Definition The entire disclosure for commitments and contingencies. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -URI http://asc.fasb.org/topic&trid=2127136 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -URI http://asc.fasb.org/topic&trid=2144648 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 954 -SubTopic 440 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=6491277&loc=d3e6429-115629 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 440 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123406679&loc=d3e25336-109308 + Details
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