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Accounts Receivable
 6 Months Ended
Jun. 29, 2019
Receivables [Abstract]  
Accounts Receivable [Text Block] Accounts Receivable

Accounts receivable, net, consists of the following:
 
 
June 29,
2019
 
December 31,
2018
Accounts receivable
 
$
8,045,924

 
$
9,021,051

Allowances for doubtful accounts
 
(69,321
)
 
(75,588
)
 
 
$
7,976,603

 
$
8,945,463



The company maintains allowances for doubtful accounts for estimated losses resulting from the inability of its customers to make required payments.  The allowances for doubtful accounts are determined using a combination of factors, including the length of time the receivables are outstanding, the current business environment, and historical experience. The company also has notes receivables with certain customers, which are included in “Accounts receivable, net” in the company’s consolidated balance sheets.