Amount, including tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value-added and excise.

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Note 12 - Commitments and Contingencies (Details Textual) - USD ($) $ in Millions	1 Months Ended		12 Months Ended	27 Months Ended
	Sep. 30, 2021	Jun. 30, 2020	Dec. 31, 2022	Dec. 31, 2023	Mar. 31, 2023	Oct. 31, 2022	Jul. 18, 2014
Milestone Payments Maximum Amount						$ 287.3	$ 187.5
Percentage of Unpaid Portion of Milestone Payments Interest Rate		6.25%
Milestone Payment	$ 1.8
Upfront License Fee						7.0
AstraZeneca Litigation [Member] \| Subsidiary of Common Parent [Member]
Litigation Settlement, Amount Awarded from Other Party				$ 107.5
Pfizer License Agreement [Member]
Revenue from Contract with Customer, Including Assessed Tax			$ 250.0
Potential Milestone Payments					$ 12.5
Takeda [Member]
Milestone Payments Maximum Amount						287.3
Upfront License Fee						$ 7.0