Balance Sheet Components - Schedule of Accrued Expenses and Other Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]
Accrued research and development	$ 5,672	$ 2,106
Accrued license fees	5,500
Accrued compensation	1,427	1,766
Accrued professional and consulting fees	1,119	999
Accrued construction in progress	1,029	173
Other	128	91
Total accrued expenses and other current liabilities	$ 14,875	$ 5,135

Accrued construction in progress current.

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- Definition

Accrued license fees current.

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- Definition

Accrued research and development current.

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- Definition

Amount of expenses incurred but not yet paid nor invoiced, and liabilities classified as other.

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- Definition

Carrying value as of the balance sheet date of obligations incurred through that date and payable for professional fees, such as for legal and accounting services received. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 6
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Total of the carrying values as of the balance sheet date of obligations incurred through that date and payable for obligations related to services received from employees, such as accrued salaries and bonuses, payroll taxes and fringe benefits. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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