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Note 7 - Discontinued Operations - Sale of OMIDRIA - Gain (Loss) on Disposal Group (Details) - USD ($) $ in Thousands		12 Months Ended
	Dec. 23, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Cash proceeds		$ 0	$ 0	$ 125,993
Discontinued Operations, Disposed of by Sale [Member] | Omidria Assets Disposal [Member]
Cash proceeds	$ 126,000			125,993
OMIDRIA contract royalty asset				184,570
Gain on sale of OMIDRIA, gross				310,563
Transaction and closing costs				(1,972)
RSUs granted to transferred employees				(1,419)
Prepaid assets and inventory at cost				(1,524)
Gain on sale of OMIDRIA		$ 0	$ 0	$ 305,648

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- Definition

Amount of prepaids and inventory sold under discontinued operation.

+ References

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Amount before tax of gain (loss) not previously recognized resulting from the disposal of a discontinued operation.

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The cash inflow associated with the amount received from the sale of a portion of the company's business, for example a segment, division, branch or other business, during the period.

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