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Long-Term Investment (Details) - Rgene Corporation [Member]	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Ownership percentage	23.90%
Accounting treatment	Equity Method

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- References

No definition available.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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