Annual report pursuant to Section 13 and 15(d)

Accrued Expenses - Components of Accrued Expenses (Details)

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Accrued Expenses - Components of Accrued Expenses (Details) - USD ($)
Dec. 31, 2020
Dec. 31, 2019
Accrued Expenses    
Accrued Wages and Related Costs $ 582,924 $ 394,669
Accrued Professional Services 187,323 217,721
Accrued Warranty Obligations 143,898 98,893
Other Accrued Expenses 68,888 174,614
Total $ 983,033 $ 885,897