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Fair Value Measurement (Tables) | 12 Months Ended
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Dec. 31, 2022
Fair Value Disclosures [Abstract] |
Schedule of Financial Assets and Liabilities Measured at Fair Value on Recurring Basis | The following tables summarize the Company’s financial assets and liabilities that are measured at fair value on a recurring basis (in thousands):
|  | As of December 31, 2022 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds (1) |  | $ | 9,194 |  |  | $ | — |  |  | $ | — |  |  | $ | 9,194 |
Commercial paper |  |  | — |  |  |  | 22,549 |  |  |  | — |  |  |  | 22,549 |
Corporate bonds |  |  | — |  |  |  | 10,797 |  |  |  | — |  |  |  | 10,797 |
Government bonds |  |  | — |  |  |  | 17,802 |  |  |  | — |  |  |  | 17,802 |
Government agency debt securities (1) |  |  | — |  |  |  | 3,982 |  |  |  | — |  |  |  | 3,982 |
Total financial assets measured at fair value |  | $ | 9,194 |  |  | $ | 55,130 |  |  | $ | — |  |  | $ | 64,324 |
Liabilities (2) : |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Warrants |  | $ | 151 |  |  | $ | — |  |  | $ | — |  |  | $ | 151 |
PIPE Warrants |  |  | — |  |  |  | 175 |  |  |  | — |  |  |  | 175 |
Total financial liabilities measured at fair value |  | $ | 151 |  |  | $ | 175 |  |  | $ | — |  |  | $ | 326 |
|  | As of December 31, 2021 |
|  | Level 1 |  |  | Level 2 |  |  | Level 3 |  |  | Total |
Assets: |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Money market funds (1) |  | $ | 32,310 |  |  | $ | — |  |  | $ | — |  |  | $ | 32,310 |
Commercial paper |  |  | — |  |  |  | 49,136 |  |  |  | — |  |  |  | 49,136 |
Corporate bonds |  |  | — |  |  |  | 19,480 |  |  |  | — |  |  |  | 19,480 |
Government bonds |  |  | — |  |  |  | 18,082 |  |  |  | — |  |  |  | 18,082 |
Foreign bonds |  |  | — |  |  |  | 3,717 |  |  |  | — |  |  |  | 3,717 |
Total financial assets measured at fair value |  | $ | 32,310 |  |  | $ | 90,415 |  |  | $ | — |  |  | $ | 122,725 |
Liabilities (2) : |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Public Warrants |  | $ | 3,527 |  |  | $ | — |  |  | $ | — |  |  | $ | 3,527 |
Private Placement Warrants |  |  | — |  |  |  | 166 |  |  |  | — |  |  |  | 166 |
PIPE Warrants |  |  | — |  |  |  | 4,608 |  |  |  | — |  |  |  | 4,608 |
Total financial liabilities measured at fair value |  | $ | 3,527 |  |  | $ | 4,774 |  |  | $ | — |  |  | $ | 8,301 |
(1) | They are included in cash and cash equivalents on the consolidated balance sheets as of December 31, 2022 and 2021.
(2) | See the definition and discussion of Public Warrants, Private Placement Warrants and PIPE Warrants in Note 11.
Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] | The key inputs into the binomial lattice model for the PIPE Warrants at the initial measurement were as follows:
|  | August 11, 2021 |
Expected term (in years) |  |  | 5.01 |
Expected volatility |  |  | 18.90 | %
Risk-free interest rate |  |  | 0.81 | %
Dividend yield |  |  | — |
Summary of Changes in Fair Value of Warrant Liabilities | The following table sets forth a summary of the changes in the fair value of the Company’s warrant liabilities for the years ended December 31, 2022 and 2021 (in thousands):
|  | Public Warrants |  |  | Private Placement Warrants |  |  | PIPE Warrants |  |  | Total Warrant Liabilities |
Balance, December 31, 2020 |  | $ | — |  |  | $ | — |  |  | $ | — |  |  | $ | — |
Assumption in Business Combination |  |  | 3,557 |  |  |  | 168 |  |  |  | 4,647 |  |  |  | 8,372 |
Change in fair value upon remeasurement (1) |  |  | (30 | ) |  |  | (2 | ) |  |  | (39 | ) |  |  | (71 | )
Balance, December 31, 2021 |  |  | 3,527 |  |  |  | 166 |  |  |  | 4,608 |  |  |  | 8,301 |
Change in fair value upon remeasurement (1) |  |  | (3,354 | ) |  |  | (157 | ) |  |  | (4,379 | ) |  |  | (7,890 | )
Repurchase (Note 9) |  |  | (22 | ) |  |  | (9 | ) |  |  | (54 | ) |  |  | (85 | )
Balance, December 31, 2022 |  | $ | 151 |  |  | $ | — |  |  | $ | 175 |  |  | $ | 326 |
(1) | The change in fair value of the warrant liabilities was recognized in other income (expense), net within the consolidated statements of operations and comprehensive loss.
Schedule of Marketable Securities by Security Type | The following tables provide the Company’s marketable securities by security type (in thousands):
|  | As of December 31, 2022 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Commercial paper |  | $ | 22,549 |  |  | $ | — |  |  | $ | — |  |  | $ | 22,549 |
Corporate bonds |  |  | 10,817 |  |  |  | 1 |  |  |  | (21 | ) |  |  | 10,797 |
Government bonds |  |  | 18,023 |  |  |  | — |  |  |  | (221 | ) |  |  | 17,802 |
Total short-term marketable securities |  | $ | 51,389 |  |  | $ | 1 |  |  | $ | (242 | ) |  | $ | 51,148 |
|  | As of December 31, 2021 |
|  | Amortized Cost |  |  | Gross Unrealized Gains |  |  | Gross Unrealized Losses |  |  | Fair Value |
Commercial paper |  | $ | 49,136 |  |  | $ | — |  |  | $ | — |  |  | $ | 49,136 |
Corporate bonds |  |  | 15,920 |  |  |  | 4 |  |  |  | (17 | ) |  |  | 15,907 |
Foreign bonds |  |  | 3,725 |  |  |  | — |  |  |  | (8 | ) |  |  | 3,717 |
Total short-term marketable securities |  | $ | 68,781 |  |  | $ | 4 |  |  | $ | (25 | ) |  | $ | 68,760 |
Government bonds |  | $ | 18,165 |  |  | $ | — |  |  | $ | (83 | ) |  | $ | 18,082 |
Corporate bonds |  |  | 3,588 |  |  |  | — |  |  |  | (15 | ) |  |  | 3,573 |
Total long-term marketable securities |  | $ | 21,753 |  |  | $ | — |  |  | $ | (98 | ) |  | $ | 21,655 |
Schedule Of Unrealized Loss On Investments | The following table indicates the length of the time that individual securities have been in a continuous unrealized loss position (dollars in thousands):
|  | As of December 31, 2022 |  |  | As of December 31, 2021 |
|  |  |  |  | Less Than 12 Months |  |  |  |  |  | Less Than 12 Months |
|  | Number of Investments |  |  | Fair Value |  |  | Unrealized Losses |  |  | Number of Investments |  |  | Fair Value |  |  | Unrealized Losses |
Corporate bonds |  |  | 4 |  |  | $ | 9,719 |  |  | $ | 21 |  |  |  | 5 |  |  | $ | 12,572 |  |  | $ | 32 |
Government bonds |  |  | 3 |  |  |  | 17,801 |  |  |  | 221 |  |  |  | 3 |  |  |  | 18,082 |  |  |  | 83 |
Foreign bonds |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 2 |  |  |  | 3,717 |  |  |  | 8 |
Total |  |  | 7 |  |  | $ | 27,520 |  |  | $ | 242 |  |  |  | 10 |  |  | $ | 34,371 |  |  | $ | 123 |

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- Definition Tabular disclosure of input and valuation technique used to measure fair value and change in valuation approach and technique for each separate class of asset and liability measured on recurring and nonrecurring basis. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (bbb) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 3 -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19279-110258 + Details
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- Definition Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126976982&loc=d3e19207-110258 + Details
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- Definition For all investments in an unrealized loss position, including those for which other-than-temporary impairments have not been recognized in earnings (including investments for which a portion of an other-than-temporary impairment has been recognized in other comprehensive income), a tabular disclosure of the aggregate related fair value of investments with unrealized losses and the aggregate amount of unrealized losses (that is, the amount by which amortized cost basis exceeds fair value). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 320 -SubTopic 10 -Section 50 -Paragraph 6 -URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27290-111563 + Details
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