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Accrued Expenses and Other Current Liabilities - Schedule of Accrued Expenses (Details) - USD ($)
Sep. 30, 2021
Dec. 31, 2020
Accrued Liabilities Current [Abstract]    
Accrued professional fees $ 166,050 $ 270,543
Accrued bonuses 1,400,403 1,424,878
Accrued insurance expense 873,592 164,832
Other employee related expenses 425,067 371,033
Accrued state taxes 548,705
Lease settlement liability 320,000
Other 696,026 734,416
Accrued expenses $ 4,429,843 $ 2,965,702