Annual and transition report of foreign private issuers pursuant to Section 13 or 15(d)

General and administrative expenses (Details)

v3.21.1
General and administrative expenses (Details) - USD ($)
12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
General and administrative expenses      
Rent $ 616,968 $ 320,927 $ 376,746
Office expenses 1,331,356 1,192,785 728,974
Legal and professional 2,073,022 1,393,004 1,151,069
Consulting fees 1,323,803 1,512,126 919,418
Investor relations 316,145 249,322 474,375
Salaries 3,164,023 1,433,196 586,160
General and administrative expenses $ 8,825,317 $ 6,101,360 $ 4,236,742