Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details)

v3.21.2
Summary of Significant Accounting Policies (Details)
6 Months Ended
Apr. 30, 2021
USD ($)
Jun. 30, 2021
USD ($)
Jun. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Accounting Policies [Abstract]        
Shipping and handling costs   $ 6,896 $ 14,498  
Research and development costs   (2,404) 4,729  
Research of development refund $ 3,250      
Warranty liability   26,733   $ 26,833
Warranty expense   0 0  
Advertising costs   $ 21,296 $ 19,789  
Number of operating segments   1    
Allowance for losses on accounts receivable   $ 237,480   $ 202,480