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Property and Equipment (Details) - USD ($)
3 Months Ended 6 Months Ended
Jun. 30, 2020
Jun. 30, 2019
Jun. 30, 2020
Jun. 30, 2019
Dec. 31, 2019
Property, Plant and Equipment          
Property and equipment $ 2,705,576   $ 2,705,576   $ 2,684,465
Less accumulated depreciation (1,997,417)   (1,997,417)   (1,861,545)
Property and equipment, net 708,159   708,159   822,920
Depreciation of property and equipment 67,681 $ 71,191 135,872 $ 141,631  
Furniture and Fixtures          
Property, Plant and Equipment          
Property and equipment 345,712   345,712   345,712
Laboratory Equipment          
Property, Plant and Equipment          
Property and equipment 1,417,952   1,417,952   1,409,526
Office Equipment          
Property, Plant and Equipment          
Property and equipment 16,755   16,755   11,085
Computer Equipment          
Property, Plant and Equipment          
Property and equipment 309,024   309,024   302,009
Leasehold Improvements          
Property, Plant and Equipment          
Property and equipment $ 616,133   $ 616,133   $ 616,133