Quarterly report pursuant to Section 13 or 15(d)

Summary of Significant Accounting Policies (Details)

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Summary of Significant Accounting Policies (Details)
3 Months Ended
Mar. 31, 2021
USD ($)
Mar. 31, 2020
USD ($)
Dec. 31, 2020
USD ($)
Accounting Policies [Abstract]
Shipping and handling costs $ 5,138 $ 8,792
Research and development costs 842 2,390
Warranty liability 26,733 26,833
Warranty expense 0 0
Advertising costs $ 12,458 $ 9,030
Number of operating segments 1 1
Allowance for losses on accounts receivable $ 237,480 $ 202,480