Note 14 - Contingently Redeemable Noncontrolling Interests (Details Textual) - SEED Therapeutics Inc. [Member] - USD ($) $ / shares in Units, $ in Thousands		12 Months Ended
Nov. 12, 2020	Dec. 31, 2020
Share Price (in dollars per share)	$ 7.5375
Proceeds from Issuance Initial Public Offering	$ 50,000
Series A-2 Preferred Shares [Member] \| Research Collaboration and License Agreement with Eli Lilly [Member]
Annual Return, Percentage	8.00%
Number of Annual Redemption Installments	3
Share Price (in dollars per share)	$ 0.50
Temporary Equity, Stock Issued During Period, Value, New Issues		$ 0
Convertible Instrument, Conversion Price (in dollars per share)	$ 2.5125
Preferred Stock, Accretion of Redemption Discount		$ 0
Initial Conversion Ratio, Adjusted for Share Splits, Share Dividends, Recapitalization and Other	1

Represents the annual return percentage under the collaboration agreement.

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- Definition

The price per share of the conversion feature embedded in the convertible instrument.

+ References

No definition available.

+ Details

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- Definition

Represents the initial conversion ratio adjusted for share splits, share dividends, recapitalization and other.

+ References

No definition available.

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- Definition

Represents the number of annual redemption installments.

+ References

No definition available.

+ Details

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The amount of accretion of the preferred stock redemption discount during the period.

+ References

No definition available.

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- Definition

The cash inflow associated with the amount received from entity's first offering of stock to the public.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

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- Definition

Price of a single share of a number of saleable stocks of a company.

+ References

No definition available.

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- Definition

Value of new stock classified as temporary equity issued during the period.

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No definition available.

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