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v3.19.2

Lease (Details Textual) - USD ($) | Mar. 31, 2019 | Dec. 31, 2018
--- | --- | ---
Lease (Textual) |  |
Operating lease right-of-use assets | $ 505,305 |
Current operating lease liabilities | 286,212 |
Non-current operating lease liabilities | 239,647 |
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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