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1. Summary of Significant Accounting Policies (Tables)
3 Months Ended
Mar. 31, 2020
Accounting Policies [Abstract]  
Reclassification of accounts receivable allowances to accrued other expenses
   

March 31,

2020

   

December 31,

2019

 
Gross accounts receivable   $ 6,218,898     $ 4,346,810  
     Allowance for doubtful accounts     (272,031 )     (276,234 )
                 
                 Total accounts receivable, net   $ 5,946,867     $ 4,070,576  

 

Accrued other expenses:

 

   

March 31,

2020

   

December 31,

2019

 
Audit, legal, payroll   $ 242,219     $ 256,966  
Royalty costs     1,275,000       1,125,000  
Sales and use tax     86,796       148,836  
Sales allowances *     879,916       901,196  
Other     236,770       234,473  
             Total accrued other expenses   $ 2,720,701     $ 2,666,471  
Disaggregation of revenue
Through :  

March 31,

2020

   

March 31,

2019

 
Retailers   $ 10,974,290     $ 7,227,364  
Distributors     597,529       529,391  
Other     383,784       253,334  
Total   $ 11,955,603     $ 8,010,089  

 

Disaggregated revenue by product for three months ended:

 

   

March 31,

2020

   

March 31,

2019

 
Cable Modems & gateways   $ 11,170,010     $ 7,073,277  
Other     785,593       936,812  
Total   $ 11,955,603     $ 8,010,089