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v3.19.2

Long-Term Investments (Details) | 3 Months Ended | 12 Months Ended |  |
--- | --- | --- | --- | ---
Mar. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Aug. 31, 2017
Ownership percentage |  |  |  | 73.00%
Rgene Corporation [Member] |  |  |  |
Ownership percentage |  | 23.90% |  |
Accounting treatment |  | Equity Method |  |
Braingenesis Biotechnology Co., Ltd. [Member] |  |  |  |
Ownership percentage | 0.17% | 0.17% |  |
Accounting treatment | Cost Method |  |  |
Genepharm Biotech Corporation [Member] |  |  |  |
Ownership percentage | 0.72% | 0.72% |  |
Accounting treatment | Cost Method |  |  |
BioHopeKing Corporation [Member] |  |  |  |
Ownership percentage | 7.13% | 7.13% |  |
Accounting treatment | Cost Method |  |  |
BioFirst Corporation [Member] |  |  |  |
Ownership percentage | 16.14% | 15.84% |  |
Accounting treatment | Equity Method |  |  |
Rgene [Member] |  |  |  |
Ownership percentage | 31.63% | 31.63% |  |
Accounting treatment | Equity Method |  |  |

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