Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details Textual)

v3.20.1
Summary of Significant Accounting Policies (Details Textual)
3 Months Ended
Mar. 31, 2020
USD ($)
Segment
Mar. 31, 2019
USD ($)
Segment
Dec. 31, 2019
USD ($)
Summary of Significant Accounting Policies (Textual)      
Shipping and handling costs $ 8,792 $ 8,299  
Warranty liability 26,833   $ 26,933
Warranty expense 0 1,631  
Research and development costs 2,390 8,102  
Advertising costs $ 9,030 $ 16,413  
Number of operating segments | Segment 1 1