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Accounts Receivable | 6 Months Ended
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Jun. 30, 2019
Receivables [Abstract] |
Accounts Receivable | 4. Accounts Receivable
|  | June 30, 2019 |  |  | December 31, 2018 |
Accounts receivable |  | $ | 3,618,188 |  |  | $ | 4,459,833 |
Allowances for doubtful accounts |  |  | (268,530 | ) |  |  | (37,088 | )
|  | $ | 3,349,658 |  |  | $ | 4,422,745 |

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- Definition The entire disclosure for financing receivable. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -URI http://asc.fasb.org/subtopic&trid=2196772 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 20 -URI http://asc.fasb.org/subtopic&trid=2196816 + Details
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- References No definition available. + Details
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