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