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Fixed Assets (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Property, Plant and Equipment [Line Items]      
Cost $ 27,341,715 $ 25,939,475  
Accumulated Depreciation and Amortization (15,993,571) (13,166,458)  
Net Book Value 11,348,144 12,773,017  
Depreciation 3,038,996 3,598,388 $ 3,747,183
Property, plant and equipment disposed of 227,000    
Accumulated depreciation written off due to disposal of property plant and equipment 200,000    
Leasehold improvements      
Property, Plant and Equipment [Line Items]      
Cost 15,179,447 15,007,935  
Accumulated Depreciation and Amortization (6,549,418) (4,996,777)  
Net Book Value 8,630,029 10,011,158  
Laboratory equipment      
Property, Plant and Equipment [Line Items]      
Cost 4,788,678 4,102,467  
Accumulated Depreciation and Amortization (3,727,508) (3,229,357)  
Net Book Value 1,061,170 873,110  
Office furniture and fixtures      
Property, Plant and Equipment [Line Items]      
Cost 2,828,675 3,048,053  
Accumulated Depreciation and Amortization (2,296,942) (1,944,293)  
Net Book Value 531,733 1,103,760  
Computer equipment and other      
Property, Plant and Equipment [Line Items]      
Cost 4,544,915 3,781,020  
Accumulated Depreciation and Amortization (3,419,703) (2,996,031)  
Net Book Value $ 1,125,212 $ 784,989