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Leases - Components Of Lease Cost (Detail) - USD ($)
6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Leases    
Operating lease cost $ 1,997 $ 601
Finance lease cost:    
Amortization of right-of-use assets 31 18
Interest on finance lease liabilities 4 5
Total finance lease cost 35 23
Total lease cost $ 2,032 $ 624