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Balance Sheet Details - Additional Information (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 31, 2021
Mar. 31, 2020
Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]      
Depreciation expense $ 125,000 $ 52,000  
Disposal of property, plant or equipment $ 0   $ 0