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4. Accounts Receivable and Due to Factor (Details) - USD ($) | Dec. 31, 2016 | Dec. 31, 2015
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Accounts Receivable And Due To Factor Tables |  |
Accounts receivable - non factored | $ 401,720 | $ 412,922
Accounts receivable - factored with recourse | 150,399 | 13,782
Less allowance for doubtful accounts | 0 | (4,031)
Accounts receivable - net | $ 552,119 | $ 422,673

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