Quarterly report pursuant to Section 13 or 15(d)

2. Summary of Significant Accounting Policies (Details)

v3.20.2
2. Summary of Significant Accounting Policies (Details)
3 Months Ended 6 Months Ended
Jun. 30, 2020
USD ($)
Jun. 30, 2019
USD ($)
Jun. 30, 2020
USD ($)
customer
Jun. 30, 2019
USD ($)
customer
Dec. 31, 2019
USD ($)
Product Information [Line Items]          
Allowance for doubtful accounts $ 85,803   $ 85,803   $ 88,071
Comprehensive loss $ (751,665) $ (2,568,763) $ (1,780,605) $ (4,429,201)  
Sales Revenue Net [Member]          
Product Information [Line Items]          
Number of significant customers | customer     2 2  
Customer concentration risk     64.00% 71.00%