Income Taxes	9 Months Ended
Sep. 30, 2021
Income Tax Disclosure [Abstract]
Income Taxes	16. Income Taxes The Company recorded an income tax expense of $11,000 and benefit of $114,000 during the three and nine months ended September 30, 2021, respectively. The Company recorded an income tax benefit of $3,000 and $2.7 million during the three and nine months ended September 30, 2020, respectively. The income tax benefit during the three and nine months ended September 30, 2021 was due to the tax effect of the reduction in the deferred tax liability associated with the basis differences from IPR&D. In comparison, the income tax benefit during the three and nine months ended September 30, 2020 was as a result of the recognition of net operating loss carryback under the Coronavirus Aid, Relief, and Economic Security Act (CARES Act). The Company maintains a full valuation allowance against its deferred tax assets due to the Company’s history of losses as of September 30, 2021.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

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