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Commitments and Contingencies - Leases (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Leases        
Rental expense $ 12,575 $ 10,336 $ 23,190 $ 20,815