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Fixed Assets (Tables)
12 Months Ended
Dec. 31, 2020
Property, Plant and Equipment [Abstract]  
Schedule of fixed assets
Fixed assets at December 31, 2020 and 2019 consisted of the following:
 
CostAccumulated
Depreciation
and
Amortization
Net Book
Value
As of December 31, 2020
Leasehold improvements$15,179,447 $(6,549,418)$8,630,029 
Laboratory equipment4,788,678 (3,727,508)1,061,170 
Office furniture and fixtures2,828,675 (2,296,942)531,733 
Computer equipment and other 4,544,915 (3,419,703)1,125,212 
$27,341,715 $(15,993,571)$11,348,144 
As of December 31, 2019
Leasehold improvements$15,007,935 $(4,996,777)$10,011,158 
Laboratory equipment4,102,467 (3,229,357)873,110 
Office furniture and fixtures3,048,053 (1,944,293)1,103,760 
Computer equipment and other 3,781,020 (2,996,031)784,989 
$25,939,475 $(13,166,458)$12,773,017