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Accounts Receivable, Net (Details Textual) - USD ($) | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Accounts Receivable, Net (Textual) |  |  |
Bad debt | $ (23,608) | $ (150,280) | $ 8,544
Allowance for continuing operations [Member] |  |  |
Accounts Receivable, Net (Textual) |  |  |
Bad debt |  |  | 10,014
Recovery of bad debt | $ (46,831) | (139,716) |
Allowance for discontinued operations [Member] |  |  |
Accounts Receivable, Net (Textual) |  |  |
Bad debt |  |  | $ 154,025

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- Definition Amount of expense related to write-down of receivables to the amount expected to be collected. Includes, but is not limited to, accounts receivable and notes receivable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.5) -URI http://asc.fasb.org/extlink&oid=115205541&loc=SL114868664-224227 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 606 -SubTopic 10 -Section 45 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=82913815&loc=SL49130534-203044 + Details
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