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Property and Equipment, Net - Additional Information (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Mar. 31, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Depreciation expense $ 27,380   $ 35,376 $ 0 $ 0
Gain loss on sale of properties   $ 0      
EVTDS [Member]          
Depreciation expense   $ 6,560