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Prepaid Expenses and Other Current Assets - Schedule of Prepaid Expenses and Other Current Assets (Detail) - USD ($) $ in Thousands	Jun. 30, 2021	Dec. 31, 2020
Prepaid Expense And Other Assets Current [Abstract]
Prepaid corporate insurance	$ 1,436	$ 562
Prepaid other and other current assets	432	373
Prepaid R&D costs	187	333
Total prepaid expenses and other current assets	$ 2,055	$ 1,268

X

- Definition

Prepaid other and other current assets.

+ References

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- Definition

Amount of asset related to consideration paid in advance for research and development that provide economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

No definition available.

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X

- Definition

Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer.

+ References

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Amount of asset related to consideration paid in advance for insurance that provides economic benefits within a future period of one year or the normal operating cycle, if longer.

+ References

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-Publisher FASB
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-Topic 340
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