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Property and Equipment (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Dec. 31, 2020
Property, Plant and Equipment [Abstract]          
Gross carrying amount $ 18,845,590   $ 18,845,590   $ 18,791,841
Accumulated depreciation (18,659,114)   (18,659,114)   (18,594,821)
Property and Equipment, net 186,476   186,476   $ 197,020
Depreciation expense $ 30,867 $ 44,778 $ 70,632 $ 90,721