Taxes (Details Textual) - USD ($)	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Taxes (Textual)
Unified enterprise income tax rate	25.00%
Income tax rate	15.00%
Statutory income tax rate		15.00%
Reduced income tax rate		10.00%
Tax holidays decreased income taxes	$ 174,774	$ 655,889	$ 339,036
Net income per share (basic and diluted)	$ 0.03	$ 0.09	$ 0.05
Value add tax exemption amounted	$ 233,345	$ 540,149	$ 272,812
Minimum [Member]
Taxes (Textual)
Value add tax standard rates	6.00%
Maximum [Member]
Taxes (Textual)
Value add tax standard rates	17.00%

Percentage of statutory income tax rate.

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Percentage of unified enterprise income tax rate.

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Amount of value add tax exemption.

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Percentage of value add tax standard rates.

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No definition available.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to deductions. Including, but not limited to, extraterritorial income exclusion deduction, qualified production activity deduction, dividend deduction, deduction for dividend paid to employee stock ownership plan, Medicare prescription drug benefit subsidy deduction, and other deductions.

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Percentage of the difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying the domestic federal statutory income tax rates to pretax income (loss) from continuing operations attributable to tax credits. Including, but not limited to, research credit, foreign tax credit, investment tax credit, and other tax credits.

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The amount of income taxes from which a reporting entity is exempt or for which it will receive a reduction in income taxes as a result of the income tax holiday granted by the taxing jurisdiction.

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Per share amount effect of the income tax benefit resulting from the income tax holidays granted by taxing jurisdictions.

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