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Accrued Expenses (Tables)
 6 Months Ended
Jun. 30, 2019
Payables and Accruals [Abstract]  
Schedule of Accrued Expenses

Accrued expenses consisted of the following at June 30, 2019 and December 31, 2018:

 

   June 30, 2019   December 31, 2018 
Accrued warranty expense  $102,955   $195,135 
Accrued litigation costs   363,508    1,119,445 
Accrued sales commissions   26,553    25,750 
Accrued payroll and related fringes   265,258    186,456 
Accrued insurance   39,112    71,053 
Accrued sales returns and allowances   28,714    13,674 
Other   236,134    469,154 
           
   $1,062,234   $2,080,667 
Schedule of Accrued Warranty Expense

Accrued warranty expense was comprised of the following for the six months ended June 30, 2019:

 

   2019 
Beginning balance  $195,135 
Provision for warranty expense   25,341 
Charges applied to warranty reserve   (117,521)
      
Ending balance  $102,955