Annual report pursuant to Section 13 and 15(d)

Right-of-Use Assets and Liabilities - Additional Information (Details)

v3.20.4
Right-of-Use Assets and Liabilities - Additional Information (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Right-of-Use Assets and Liabilities      
Term of contract 5 years    
Operating lease, option to extend true    
Renewal term 3 years    
Operating lease costs $ 559,975 $ 572,767 $ 462,711
Weighted average discount rate 4.50%    
Weighted average reamining term 2 years 9 months 18 days