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Property and Equipment, Net (Details) - USD ($)
6 Months Ended 12 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Dec. 31, 2019
Property, Plant and Equipment [Abstract]        
Depreciation expense $ 27,661 $ 26,533 $ 54,903 $ 86,054