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Long-Term Investments (Details Textual) - USD ($) |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | ---
Dec. 24, 2018 | Aug. 15, 2018 | Nov. 02, 2018 | Mar. 31, 2019 | Mar. 31, 2018 | Dec. 31, 2018 | Dec. 31, 2017
Long-Term Investments (Textual) |  |  |  |  |  |  |
Issued shares |  |  |  | $ 694,219 | $ 80,000 | $ 80,000 | $ 5,850,000
Rgene [Member] |  |  |  |  |  |  |
Long-Term Investments (Textual) |  |  |  |  |  |  |
Percentage of common stock shares |  |  |  | 31.63% |  | 31.62% |
Issued shares | $ 2,550,000 |  |  |  |  |  |
Common stock price | $ 1.60 |  |  |  |  |  |
Aggregate number of shares | 1,530,000 |  |  |  |  |  |
BioFirst [Member] |  |  |  |  |  |  |
Long-Term Investments (Textual) |  |  |  |  |  |  |
Percentage of common stock shares |  |  |  | 16.14% |  | 15.84% |
Sale of common stock, description |  | The Company subsequently purchased an aggregate of 200,000 and 366,200 shares of common stock of BHK at NT$10, equivalent to $0.33, and NT$50, equivalent $1.64, from one of directors of BHK and eleven shareholders of BHK, respectively. The percentage of ownership accordingly increased to 7.13% as of March 31, 2019 and December 31, 2018. | The Company subsequently purchased an aggregate of 200,000 and 366,200 shares of common stock of BHK at NT$10, equivalent to $0.33, and NT$50, equivalent $1.64, from one of directors of BHK and eleven shareholders of BHK, respectively. The percentage of ownership accordingly increased to 7.13% as of March 31, 2019 and December 31, 2018. |  |  | The Company sold 552,000 shares of common stock of BioHopeKing Corporation (the "BHK") at prices ranging from NT$25, equivalent $0.82, to NT$32, equivalent $1.05, to two directors of BHK and 25 individuals. As a result of the transactions, the Company recognized investment loss of $395,476 for the same period. |

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