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Long-Term Investments (Details 2) - USD ($)	Mar. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Non-marketable Cost Method Investments, net abstract
Sub total	$ 1,967,446	$ 1,985,663
Total	3,407,763	3,488,169
BioFirst Corporation [Member]
Non-marketable Cost Method Investments, net abstract
Total	1,440,317	1,502,506
Rgene Corporation [Member]
Non-marketable Cost Method Investments, net abstract
Total
Braingenesis Biotechnology Co., Ltd. [Member]
Non-marketable Cost Method Investments, net abstract
Sub total	7,147	7,213
Genepharm Biotech Corporation [Member]
Non-marketable Cost Method Investments, net abstract
Sub total	21,819	22,021
BioHopeKing Corporation [Member]
Non-marketable Cost Method Investments, net abstract
Sub total	$ 1,938,480	$ 1,956,429

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This item represents the carrying amount on the entity's balance sheet of its investment in common stock of an equity method investee. This is not an indicator of the fair value of the investment, rather it is the initial cost adjusted for the entity's share of earnings and losses of the investee, adjusted for any distributions (dividends) and other than temporary impairment (OTTI) losses recognized.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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-Topic 210
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