Quarterly report pursuant to Section 13 or 15(d)

Accrued Liabilities - Schedule of Accrued Liabilities (Details)

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Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($)
Mar. 31, 2021
Dec. 31, 2020
Payables and Accruals [Abstract]    
Accrued compensation and related taxes $ 473,600 $ 486,400
Accrued interest 1,310,900 1,170,500
Accrued settlement/litigation claims 150,000 150,000
Warranty and defect claims 35,700 34,000
Other 127,200 136,300
Total Accrued Liabilities $ 2,097,400 $ 1,977,200 [1]
[1] These numbers were derived from the audited financial statements for the year ended December 31, 2020.