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Note 9 - Income Taxes (Details) - Schedule of the Aggregate Dollar and Per Share Effects of Tax Exemption - USD ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
Schedule of the Aggregate Dollar and Per Share Effects of Tax Exemption [Abstract] |  |
Aggregate dollar effect of tax holiday | $ 1,174,860 | $ 2,045,545

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- Definition Amount 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 income (loss) exempt from income taxes. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32698-109319 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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