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Convertible Notes - Additional Information (Detail) - USD ($)
$ in Thousands
1 Months Ended 11 Months Ended 12 Months Ended
Oct. 19, 2020
Aug. 24, 2020
Feb. 28, 2021
Dec. 31, 2020
Dec. 31, 2021
Debt Instrument [Line Items]          
Proceeds from issuance of convertible notes     $ 45,000 $ 500 $ 45,000
Number of common shares         5,022,052
Convertible Notes [Member]          
Debt Instrument [Line Items]          
Interest rate         1.00%
Interest expenses         $ 200
Change in value of bifurcated embedded derivative         5,000
2020 Notes [Member]          
Debt Instrument [Line Items]          
Proceeds from issuance of convertible notes   $ 500      
Interest rate   10.00%      
Amount of proceeds that would trigger conversion of convertible notes         10,000
Pre-money valuation         $ 175
Number of common shares 250,000