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Accrued Expenses and Other Liabilities (Tables)
 9 Months Ended
Sep. 30, 2020
Accrued Liabilities And Other Liabilities [Abstract]  
Schedule of Accrued Expenses and Other Liabilities

Accrued expenses and other liabilities consist of the following:

 

 

 

September 30,

 

 

December 31,

 

 

 

2020

 

 

2019

 

Accrued compensation and related liabilities

 

$

764,876

 

 

$

1,621,177

 

Deferred revenue and customer deposits

 

 

1,406,683

 

 

 

1,260,126

 

Warranty reserve

 

 

438,685

 

 

 

424,011

 

Other accrued expenses

 

 

1,147,865

 

 

 

1,302,118

 

 

 

$

3,758,109

 

 

$

4,607,432