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Lease (Details Textual) - USD ($)	Jun. 30, 2019	Dec. 31, 2018
Lease (Textual)
Operating lease right-of-use assets	$ 431,389
Current operating lease liabilities	279,214
Non-current operating lease liabilities	170,993
ASC 842 [Member]
Lease (Textual)
Operating lease right-of-use assets	577,830
Operating lease liabilities	598,937
Current operating lease liabilities	301,105
Non-current operating lease liabilities	297,832
Cumulative-effect adjustment of opening balance of accumulated deficit	$ (21,107)

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- Definition

Present value of lessee's discounted obligation for lease payments from operating lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as current.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=77888419&loc=SL77918627-209977

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Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
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-Subparagraph (b)
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Amount of lessee's right to use underlying asset under operating lease.

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
-Subparagraph (a)
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