Annual report pursuant to Section 13 and 15(d)

Accrued Liabilities - Schedule of Accrued Liabilities (Details)

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Accrued Liabilities - Schedule of Accrued Liabilities (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Payables and Accruals [Abstract]    
Accrued compensation and related taxes $ 486,400 $ 498,000
Accrued interest 1,170,500 648,600
Accrued settlement/litigation claims 150,000 150,000
Warranty and defect claims 34,000 48,200
Other 136,300 162,000
Total Accrued Liabilities $ 1,977,200 $ 1,506,800