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Taxes (Details Textual) - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Taxes (Textual) |  |  |  |
Corporate income tax rate | 25.00% | 25.00% | 25.00% |
Estimated tax savings preferred tax rates | $ 86,898 | $ 266,125 | $ 196,303 |
Per share effect of the tax exemption | $ 0.004 | $ 0.01 | $ 0.01 |
Deferred tax assets | $ 551,534 | $ 296,535 |  |
Increases in valuation allowance | $ 302,129 | $ 283,160 |  |
VAT rate | 17.00% |  |  |
Percentage of taxable income |  |  | 10.00% | 10.00%
R&D expense approved by local tax authority deducted from tax income | 150.00% |  |  |
Beijing REIT [Member] |  |  |  |
Taxes (Textual) |  |  |  |
Favorable income tax rate | 15.00% |  |  |

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