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Accounts Receivable (Tables)
12 Months Ended
Dec. 31, 2020
Receivables [Abstract]  
Schedule of accounts receivable

   December 31,
2020
   December 31,
2019
 
         
Accounts Receivable Gross  $9,762,000   $8,717,000 
Allowance for Doubtful Accounts   (964,000)   (859,000)
Accounts Receivable Net  $8,798,000   $7,858,000 
Schedule of allowance for doubtful accounts

       Charged         
   Balance at   to   Deductions   Balance at 
   Beginning of   Costs and   from   End of 
   Year   Expenses   Reserves   Year 
                 
Year ended December 31, 2020 Allowance for Doubtful Accounts  $859,000   $483,000   $378,000   $964,000 
Year ended December 31, 2019 Allowance for Doubtful Accounts  $524,000   $556,000   $221,000   $859,000