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Accounts Receivable (Tables) | 12 Months Ended
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Dec. 31, 2016
Receivables [Abstract] |
Schedule of Accounts, Notes, Loans and Financing Receivable [Text Block] | Accounts receivable, net, consists of the following at December 31:
|  | 2016 |  | 2015
Accounts receivable |  | $ | 6,798,943 |  |  | $ | 6,211,077 |
Allowances for doubtful accounts |  | (52,256 | ) |  | (49,659 | )
Accounts receivable, net |  | $ | 6,746,687 |  |  | $ | 6,161,418 |
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. As of December 31, 2016, the company has one customer with a combined note and accounts receivable balance of approximately $20.0 million. The customer became delinquent on its repayment of the note during the fourth quarter of 2016. The company believes that it will recover all amounts due; however, it is possible that it could incur a loss.

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- Definition Tabular disclosure of the various types of trade accounts and notes receivable and for each the gross carrying value, allowance, and net carrying value as of the balance sheet date. Presentation is categorized by current, noncurrent and unclassified receivables. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.3,4) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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