Nature of Business and Organization and Basis of Presentation (Policies)	3 Months Ended
Mar. 31, 2022
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Principles of Consolidation	The Company consolidates the financial statements of all entities in which it has a controlling financial interest, including the accounts of any Variable Interest Entity (“VIE”) in which the Company has a controlling financial interest and for which it is the primary beneficiary. All intercompany transactions and balances have been eliminated upon consolidation.
Basis of Presentation	The unaudited Condensed Consolidated Financial Statements have been prepared in conformity with generally accepted accounting principles in the United States (“GAAP”) for interim financial information and are unaudited. These unaudited Condensed Consolidated Financial Statements do not include all disclosures that are normally included in annual audited financial statements prepared in accordance with GAAP and should be read in conjunction with the Company’s audited Consolidated Financial Statements for the year ended December 31, 2021, included in the Company’s Form 10-K filed with Securities and Exchange Commission (“SEC”) on May 13, 2022 (the “Form 10-K”). Accordingly, the Condensed Consolidated Balance Sheet as of December 31, 2021, has been derived from the Company’s annual audited Consolidated Financial Statements but does not contain all of the footnote disclosures from the annual financial statements. In the opinion of the Company, the unaudited Condensed Consolidated Financial Statements contain all adjustments, consisting of only normal recurring adjustments, necessary for a fair statement of its financial position, its results of operations, and cash flows for the periods presented. The accounting policies used in the preparation of these unaudited Condensed Consolidated Financial Statements are the same as those disclosed in the audited Consolidated Financial Statements for the year ended December 31, 2021, included in the Form 10-K, except as described below.
Reclassification	Reclassification The Company reclassified certain amounts in the Condensed Consolidated Financial Statements to conform to the current period's presentation.
Revision	Revision As previously disclosed in the Company’s annual financial statements for the fiscal year ended December 31, 2021, in connection with the findings of the Special Committee Investigation, the Company found misclassifications in the unaudited Condensed Consolidated Financial Statements for the quarterly period ended March 31, 2021, resulting in an overstatement of interest expense and understatement of related party interest expense of $682. The misstatements did not affect any subtotals or totals on the Condensed Consolidated Statements of Operations and Comprehensive Loss for the quarterly period ended March 31, 2021. The Company concluded that such misstatements were not material to the previously issued financial statements, however, the Condensed Consolidated Statements of Operations and Comprehensive Loss for the quarterly period ended March 31, 2021 have been revised to correct for these misstatements.
Use of Estimates	Use of Estimates The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions, which affect the reported amounts in the financial statements. Estimates are based on historical experience, where applicable, and other assumptions which management believes are reasonable under the circumstances. On an ongoing basis, management evaluates its estimates, including those related to the: (i) realization of tax assets and estimates of tax liabilities; (ii) valuation of equity securities; (iii) recognition and disclosure of contingent liabilities, including litigation reserves; (iv) fair value of related party notes payable and notes payable; (v) estimated useful lives and impairment of long-lived assets; (vi) fair value of options granted to employees and non-employees; (vii) fair value of warrants, and (viii) incremental borrowing rate used to measure operating lease liabilities. Such estimates often require the selection of appropriate valuation methodologies and financial models and may involve significant judgment in evaluating ranges of assumptions and financial inputs. Actual results may differ from those estimates. As of the date the Company’s unaudited Condensed Consolidated Financial Statements were issued, the Company is not aware of any specific event or circumstance that would require it to update its estimates or judgments or to revise the carrying value of its assets or liabilities. However, these estimates and judgments may change as new events occur and additional information is obtained, which may result in changes being recognized in the Company’s condensed consolidated financial statements in future periods. While the Company considered the effects of COVID-19 on its estimates and assumptions, due to the level of uncertainty regarding the economic and operational impacts of COVID-19 on the Company’s business, there may be other judgments and assumptions that the Company has not considered. Such judgments and assumptions could result in a material impact on the Company’s financial statements in future periods. Actual results could differ from these estimates and any such differences may have a material impact on the Company’s Condensed Consolidated Financial Statements.
Income Tax	Income Tax The Company recorded an income tax provision of $0 and $3 for the period ended March 31, 2022 and 2021, respectively, on the unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss. The difference in the Company’s effective tax rate from the federal statutory rate of 21% is due to the ratio of domestic and international loss before taxes. The Company records a valuation allowance to reflect limited benefits for income taxes in jurisdictions that historically reported losses and a provision for income taxes in jurisdictions that are profitable. The income tax provision for each period was the combined calculated tax expenses/benefits for various jurisdictions. The Company is subject to taxation and files income tax returns with the U.S. federal government, California and China. As of March 31, 2022, the 2017 through 2021 federal returns and 2017 through 2021 state returns are open to exam. The Company’s 2017 and 2018 federal returns are currently under audit by the Internal Revenue Service (“IRS”). The Company is not under any tax audits on its China tax returns. All of the prior year tax returns, from 2016 through 2021, are open under China tax law.
Recently Adopted Accounting Pronouncements	Recently Adopted Accounting Pronouncements In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842) (“Topic 842”), which outlines a comprehensive lease accounting model that supersedes the previous lease guidance. The guidance requires lessees to recognize lease liabilities and corresponding right-of-use assets for all leases with lease terms greater than 12 months. It also changes the definition of a lease and expands the disclosure requirements of lease arrangements. In July 2018, the FASB issued ASU 2018-11, Leases (Topic 842) - Targeted Improvements, which provides the option of an additional transition method that allows entities to initially apply the new lease guidance at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. The Company adopted the standard on January 1, 2022 using the modified retrospective basis and recorded operating lease right-of-use assets (“ROU”) of $11,191 and operating lease liabilities of $11,191 on that date. As part of this adoption, the Company reclassified the deferred gain related to a previous sale and leaseback of $3,393 to accumulated deficit. The Company elected to apply the package of practical expedients permitted under the transition guidance within ASC 842 which does not require reassessment of initial direct costs, reassessment of the classification of leases as operating or financing, or reassessment of the definition of a lease (see Note 10, Leases). Finance lease liabilities and related property and equipment assets did not change as a result of the adoption of this standard. In August 2020, the FASB issued ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity (“ASU 2020-06”). The ASU simplifies the accounting for convertible instruments by removing certain separation models in ASC 470- 20, Debt — Debt with Conversion and Other Options, for convertible instruments. The ASU updates the guidance on certain embedded conversion features that are not required to be accounted for as derivatives under Topic 815, Derivatives and Hedging, or that do not result in substantial premiums accounted for as paid-in capital, such that those features are no longer required to be separated from the host contract. The convertible debt instruments will be accounted for as a single liability measured at amortized cost. Further, the ASU made amendments to the earnings per share guidance in Topic 260 for convertible instruments, the most significant impact of which is requiring the use of the if-converted method for the diluted EPS calculation, and no longer allowing the net share settlement method. The ASU also made revisions to Topic 815-40, which provides guidance on how an entity must determine whether a contract qualifies for a scope exception from derivative accounting. The amendments to Topic 815-40 change the scope of contracts that are recognized as assets or liabilities. ASU 2020-06 is effective for interim and annual periods beginning after December 15, 2023, with early adoption permitted. Adoption of the ASU can either be on a modified retrospective or full retrospective basis. The Company adopted the standard on January 1, 2022 on a modified retrospective basis and reclassified the Obligation to issue registered shares of Class A Common Stock of $12,635 from Accrued expenses and other current liabilities and reclassified $20,265 from Accumulated deficit to Commitment to issue Class A Common Stock on the Condensed Consolidated Balance Sheets. In May 2021, the FASB issued ASU 2021-04, Issuer’s Accounting for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options (“ASU 2021-04”). The ASU clarifies and reduces diversity in an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options (for example, warrants) that remain equity classified after modification or exchange. The ASU made amendments to the earnings per share guidance in Topic 260 for an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options. Further, the ASU made amendments to the Debt—Modifications and Extinguishments guidance in Topic 470-50. The ASU also added references to revised guidance within Topic 505 and 718. Additionally, the ASU made additions to Topic 815-40 related to the issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options. ASU 2021-04 is effective for interim and annual periods beginning after December 15, 2021, with early adoption permitted. Adoption of the amendments in the ASU should be applied prospectively to modifications or exchanges occurring on or after the effective date of the amendments. The Company adopted the standard as of January 1, 2022. There was an immaterial effect on the condensed consolidated financial statements as a result of the adoption of ASU 2021-04.
Fair Value Measurements	Fair Value Measurements The Company applies the provisions of ASC 820, Fair Value Measurement, which defines a single authoritative definition of fair value, sets out a framework for measuring fair value and expands on required disclosures about fair value measurements. The provisions of ASC 820 relate to financial assets and liabilities as well as other assets and liabilities carried at fair value on a recurring and nonrecurring basis. The standard clarifies that fair value is an exit price representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, the standard establishes a three-tier value hierarchy, which prioritizes the inputs used in measuring fair value as follows: Level 1Valuations for assets and liabilities traded in active exchange markets, or interest in open-end mutual funds that allow a company to sell its ownership interest back at net asset value on a daily basis. Valuations are obtained from readily available pricing sources for market transactions involving identical assets, liabilities, or funds. Level 2Valuations for assets and liabilities traded in less active dealer, or broker markets, such as quoted prices for similar assets or liabilities or quoted prices in markets that are not active. Level 2 instruments typically include U.S. Government and agency debt securities and corporate obligations. Valuations are usually obtained through market data of the investment itself as well as market transactions involving comparable assets, liabilities or funds. Level 3Valuations for assets and liabilities that are derived from other valuation methodologies, such as option pricing models, discounted cash flow models or similar techniques, and not based on market exchange, dealer, or broker-traded transactions. Level 3 valuations incorporate certain assumptions and projections in determining the fair value assigned to such assets or liabilities. Fair value estimates are made at a specific point in time based on relevant market information and information about the financial or nonfinancial asset or liability.
Net Loss Per Share Attributable to Common Stockholders	Net Loss Per Share Attributable to Common Stockholders Basic net loss per share attributable to common stockholders is calculated by dividing net loss attributable to common stockholders by the weighted-average number of shares issued and shares to be issued under the commitment to issue shares, as these shares are issuable for no consideration. Diluted net loss per share attributable to common stockholders adjusts the basic net loss per share attributable to common stockholders and the weighted-average number of shares issued and shares to be issued under the commitment to issue shares for potentially dilutive instruments. For purposes of presentation of basic and diluted net loss per share, the Company includes shares to be issued in the denominator in accordance with ASC 710-10-54-4 and ASC 260-10-45-48 as if they had been issued on the date of the merger, as such shares are non-contingent and are issuable for no consideration (see Note 3, Business Combination).

Nature of Business and Organization and Basis of Presentation (Policies)

3 Months Ended

Mar. 31, 2022

Organization, Consolidation and Presentation of Financial Statements [Abstract]

The Company consolidates the financial statements of all entities in which it has a controlling financial interest, including the accounts of any Variable Interest Entity (“VIE”) in which the Company has a controlling financial interest and for which it is the primary beneficiary. All intercompany transactions and balances have been eliminated upon consolidation.

Basis of Presentation

The unaudited Condensed Consolidated Financial Statements have been prepared in conformity with generally accepted accounting principles in the United States (“GAAP”) for interim financial information and are unaudited.

These unaudited Condensed Consolidated Financial Statements do not include all disclosures that are normally included in annual audited financial statements prepared in accordance with GAAP and should be read in conjunction with the Company’s audited Consolidated Financial Statements for the year ended December 31, 2021, included in the Company’s Form 10-K filed with Securities and Exchange Commission (“SEC”) on May 13, 2022 (the “Form 10-K”). Accordingly, the Condensed Consolidated Balance Sheet as of December 31, 2021, has been derived from the Company’s annual audited Consolidated Financial Statements but does not contain all of the footnote disclosures from the annual financial statements.

In the opinion of the Company, the unaudited Condensed Consolidated Financial Statements contain all adjustments, consisting of only normal recurring adjustments, necessary for a fair statement of its financial position, its results of operations, and cash flows for the periods presented. The accounting policies used in the preparation of these unaudited Condensed Consolidated Financial Statements are the same as those disclosed in the audited Consolidated Financial Statements for the year ended December 31, 2021, included in the Form 10-K, except as described below.

Reclassification

The Company reclassified certain amounts in the Condensed Consolidated Financial Statements to conform to the current period's presentation.

Revision

As previously disclosed in the Company’s annual financial statements for the fiscal year ended December 31, 2021, in connection with the findings of the Special Committee Investigation, the Company found misclassifications in the unaudited Condensed Consolidated Financial Statements for the quarterly period ended March 31, 2021, resulting in an overstatement of interest expense and understatement of related party interest expense of $682. The misstatements did not affect any subtotals or totals on the Condensed Consolidated Statements of Operations and Comprehensive Loss for the quarterly period ended

March 31, 2021. The Company concluded that such misstatements were not material to the previously issued financial statements, however, the Condensed Consolidated Statements of Operations and Comprehensive Loss for the quarterly period ended March 31, 2021 have been revised to correct for these misstatements.

Use of Estimates

The preparation of the financial statements in conformity with GAAP requires management to make estimates and assumptions, which affect the reported amounts in the financial statements. Estimates are based on historical experience, where applicable, and other assumptions which management believes are reasonable under the circumstances. On an ongoing basis, management evaluates its estimates, including those related to the: (i) realization of tax assets and estimates of tax liabilities; (ii) valuation of equity securities; (iii) recognition and disclosure of contingent liabilities, including litigation reserves; (iv) fair value of related party notes payable and notes payable; (v) estimated useful lives and impairment of long-lived assets; (vi) fair value of options granted to employees and non-employees; (vii) fair value of warrants, and (viii) incremental borrowing rate used to measure operating lease liabilities. Such estimates often require the selection of appropriate valuation methodologies and financial models and may involve significant judgment in evaluating ranges of assumptions and financial inputs. Actual results may differ from those estimates.

As of the date the Company’s unaudited Condensed Consolidated Financial Statements were issued, the Company is not aware of any specific event or circumstance that would require it to update its estimates or judgments or to revise the carrying value of its assets or liabilities. However, these estimates and judgments may change as new events occur and additional information is obtained, which may result in changes being recognized in the Company’s condensed consolidated financial statements in future periods. While the Company considered the effects of COVID-19 on its estimates and assumptions, due to the level of uncertainty regarding the economic and operational impacts of COVID-19 on the Company’s business, there may be other judgments and assumptions that the Company has not considered. Such judgments and assumptions could result in a material impact on the Company’s financial statements in future periods. Actual results could differ from these estimates and any such differences may have a material impact on the Company’s Condensed Consolidated Financial Statements.

Income Tax

The Company recorded an income tax provision of $0 and $3 for the period ended March 31, 2022 and 2021, respectively, on the unaudited Condensed Consolidated Statements of Operations and Comprehensive Loss. The difference in the Company’s effective tax rate from the federal statutory rate of 21% is due to the ratio of domestic and international loss before taxes. The Company records a valuation allowance to reflect limited benefits for income taxes in jurisdictions that historically reported losses and a provision for income taxes in jurisdictions that are profitable. The income tax provision for each period was the combined calculated tax expenses/benefits for various jurisdictions.

The Company is subject to taxation and files income tax returns with the U.S. federal government, California and China. As of March 31, 2022, the 2017 through 2021 federal returns and 2017 through 2021 state returns are open to exam. The Company’s 2017 and 2018 federal returns are currently under audit by the Internal Revenue Service (“IRS”). The Company is not under any tax audits on its China tax returns. All of the prior year tax returns, from 2016 through 2021, are open under China tax law.

Recently Adopted Accounting Pronouncements

In February 2016, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2016-02, Leases (Topic 842) (“Topic 842”), which outlines a comprehensive lease accounting model that supersedes the previous lease guidance. The guidance requires lessees to recognize lease liabilities and corresponding right-of-use assets for all leases with lease terms greater than 12 months. It also changes the definition of a lease and expands the disclosure requirements of lease arrangements. In July 2018, the FASB issued ASU 2018-11, Leases (Topic 842) - Targeted Improvements, which provides the option of an additional transition method that allows entities to initially apply the new lease guidance at the adoption date and recognize a cumulative-effect adjustment to the opening balance of retained earnings in the period of adoption. The Company adopted the standard on January 1, 2022 using the modified retrospective basis and recorded operating lease right-of-use assets (“ROU”) of $11,191 and operating lease liabilities of $11,191 on that date. As part of this adoption, the

Company reclassified the deferred gain related to a previous sale and leaseback of $3,393 to accumulated deficit. The Company elected to apply the package of practical expedients permitted under the transition guidance within ASC 842 which does not require reassessment of initial direct costs, reassessment of the classification of leases as operating or financing, or reassessment of the definition of a lease (see Note 10, Leases). Finance lease liabilities and related property and equipment assets did not change as a result of the adoption of this standard.

In August 2020, the FASB issued ASU 2020-06, Accounting for Convertible Instruments and Contracts in an Entity’s Own Equity (“ASU 2020-06”). The ASU simplifies the accounting for convertible instruments by removing certain separation models in ASC 470- 20, Debt — Debt with Conversion and Other Options, for convertible instruments. The ASU updates the guidance on certain embedded conversion features that are not required to be accounted for as derivatives under Topic 815, Derivatives and Hedging, or that do not result in substantial premiums accounted for as paid-in capital, such that those features are no longer required to be separated from the host contract. The convertible debt instruments will be accounted for as a single liability measured at amortized cost. Further, the ASU made amendments to the earnings per share guidance in Topic 260 for convertible instruments, the most significant impact of which is requiring the use of the if-converted method for the diluted EPS calculation, and no longer allowing the net share settlement method. The ASU also made revisions to Topic 815-40, which provides guidance on how an entity must determine whether a contract qualifies for a scope exception from derivative accounting. The amendments to Topic 815-40 change the scope of contracts that are recognized as assets or liabilities. ASU 2020-06 is effective for interim and annual periods beginning after December 15, 2023, with early adoption permitted. Adoption of the ASU can either be on a modified retrospective or full retrospective basis. The Company adopted the standard on January 1, 2022 on a modified retrospective basis and reclassified the Obligation to issue registered shares of Class A Common Stock of $12,635 from Accrued expenses and other current liabilities and reclassified $20,265 from Accumulated deficit to Commitment to issue Class A Common Stock on the Condensed Consolidated Balance Sheets.

In May 2021, the FASB issued ASU 2021-04, Issuer’s Accounting for Certain Modifications or Exchanges of Freestanding Equity-Classified Written Call Options (“ASU 2021-04”). The ASU clarifies and reduces diversity in an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options (for example, warrants) that remain equity classified after modification or exchange. The ASU made amendments to the earnings per share guidance in Topic 260 for an issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options. Further, the ASU made amendments to the Debt—Modifications and Extinguishments guidance in Topic 470-50. The ASU also added references to revised guidance within Topic 505 and 718. Additionally, the ASU made additions to Topic 815-40 related to the issuer’s accounting for modifications or exchanges of freestanding equity-classified written call options. ASU 2021-04 is effective for interim and annual periods beginning after December 15, 2021, with early adoption permitted. Adoption of the amendments in the ASU should be applied prospectively to modifications or exchanges occurring on or after the effective date of the amendments. The Company adopted the standard as of January 1, 2022. There was an immaterial effect on the condensed consolidated financial statements as a result of the adoption of ASU 2021-04.

Fair Value Measurements

The Company applies the provisions of ASC 820, Fair Value Measurement, which defines a single authoritative definition of fair value, sets out a framework for measuring fair value and expands on required disclosures about fair value measurements. The provisions of ASC 820 relate to financial assets and liabilities as well as other assets and liabilities carried at fair value on a recurring and nonrecurring basis. The standard clarifies that fair value is an exit price representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. As such, fair value is a market-based measurement that should be determined based on assumptions that market participants would use in pricing an asset or liability. As a basis for considering such assumptions, the standard establishes a three-tier value hierarchy, which prioritizes the inputs used in measuring fair value as follows:

Level 1Valuations for assets and liabilities traded in active exchange markets, or interest in open-end mutual funds that allow a company to sell its ownership interest back at net asset value on a daily basis. Valuations are obtained from readily available pricing sources for market transactions involving identical assets, liabilities, or funds.

Level 2Valuations for assets and liabilities traded in less active dealer, or broker markets, such as quoted prices for similar assets or liabilities or quoted prices in markets that are not active. Level 2 instruments typically include U.S. Government and agency debt securities and corporate obligations. Valuations are usually obtained through market data of the investment itself as well as market transactions involving comparable assets, liabilities or funds.

Level 3Valuations for assets and liabilities that are derived from other valuation methodologies, such as option pricing models, discounted cash flow models or similar techniques, and not based on market exchange, dealer, or broker-traded transactions. Level 3 valuations incorporate certain assumptions and projections in determining the fair value assigned to such assets or liabilities.

Fair value estimates are made at a specific point in time based on relevant market information and information about the financial or nonfinancial asset or liability.

Net Loss Per Share Attributable to Common Stockholders

Basic net loss per share attributable to common stockholders is calculated by dividing net loss attributable to common stockholders by the weighted-average number of shares issued and shares to be issued under the commitment to issue shares, as these shares are issuable for no consideration.

Diluted net loss per share attributable to common stockholders adjusts the basic net loss per share attributable to common stockholders and the weighted-average number of shares issued and shares to be issued under the commitment to issue shares for potentially dilutive instruments.

For purposes of presentation of basic and diluted net loss per share, the Company includes shares to be issued in the denominator in accordance with ASC 710-10-54-4 and ASC 260-10-45-48 as if they had been issued on the date of the merger, as such shares are non-contingent and are issuable for no consideration (see Note 3, Business Combination).