Agreement and Plan of Merger (Details)	Jan. 21, 2018 shares
Agreement and Plan of Merger
Number of shares received from new company	0.20
Number of days in average volume weighted trading prices	30 days
Ownership percentage of new company	48.40%
Investor
Agreement and Plan of Merger
Ownership percentage of new company	18.00%
BioCryst
Agreement and Plan of Merger
Number of shares received from new company	0.50
Ownership percentage of new company	51.60%
BioCryst \| Investor
Agreement and Plan of Merger
Ownership percentage of new company	14.00%

The number of days in the average volume weighted trading prices for each company.

No definition available.

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- Definition

Number of shares of equity interests issued or issuable to acquire entity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 30
-Section 50
-Paragraph 1
-Subparagraph (b)(4)
-URI http://asc.fasb.org/extlink&oid=35744584&loc=d3e6927-128479

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

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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://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66011266&loc=d3e33918-111571

+ Details

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- Details

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