Quarterly report pursuant to Section 13 or 15(d)

2. Summary of Significant Accounting Policies (Details)

v3.20.1
2. Summary of Significant Accounting Policies (Details)
3 Months Ended
Mar. 31, 2020
USD ($)
customer
Mar. 31, 2019
USD ($)
customer
Dec. 31, 2019
USD ($)
Product Information [Line Items]      
Allowance for doubtful accounts $ 104,581   $ 88,071
Comprehensive loss $ (1,028,860) $ (1,850,096)  
Sales Revenue Net [Member]      
Product Information [Line Items]      
Number of significant customers | customer 2 2  
Customer concentration risk 81.00% 78.00%