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Accrued Expenses (Tables)
 12 Months Ended
Dec. 31, 2020
Payables and Accruals [Abstract]  
Schedule of Accrued Expenses

Accrued expenses consisted of the following at December 31, 2020 and 2019:

 

    December 31, 2020     December 31, 2019  
Accrued warranty expense   $ 31,845     $ 17,838  
Accrued litigation costs     250,000       295,000  
Accrued sales commissions     38,294       28,480  
Accrued payroll and related fringes     199,850       233,254  
Accrued insurance     —       78,579  
Accrued sales returns and allowances     26,069       18,258  
Accrued sales taxes     53,627       50,136  
Other     196,409       124,336  
    $ 796,094     $ 845,881  
Schedule of Accrued Warranty Expense

Accrued warranty expense was comprised of the following for the years ended December 31, 2020 and 2019:

 

    2020     2019  
Beginning balance   $ 17,838     $ 195,135  
Provision for warranty expense     123,474       47,355  
Charges applied to warranty reserve     (109,468 )     (224,651 )
                 
Ending balance   $ 31,845     $ 17,838