Revenue (Tables)
 3 Months Ended
Mar. 31, 2021
Revenue from Contract with Customer [Abstract]  
Summary of Revenue by Geographic Area

The following table sets forth revenue by geographic area:

 

    Three Months Ended March 31,  
    2021     2020  
United States   $ 12,493,950     $ 614,025  
Rest of World     7,530,819       934,503  
Total   $ 20,024,769     $ 1,548,528  
Percentage of revenue by area:                
United States     62 %     40 %
Rest of World     38 %     60 %
Schedule of Deferred Revenue

Changes in the Company’s deferred revenue balance for the three months ended March 31, 2021 were as follows:

 

Balance as of December 31, 2020   $ 305,307  
Revenue recognized included in deferred revenue balance at the beginning of the period     (200,071 )
Increase due to prepayments from customers     53,555  
 Balance as of March 31, 2021   $ 158,791