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Note 12 - Share-Based Compensation - Schedule of Recognized Period Costs (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Stock-based compensation	$ 2,641	$ 3,235	$ 8,067	$ 8,959
Research and Development Expense [Member]
Stock-based compensation	1,063	1,305	3,146	3,710
Selling, General and Administrative Expenses [Member]
Stock-based compensation	1,578	2,054	4,921	5,456
Continuing Operations [Member]
Stock-based compensation	2,641	3,359	8,067	9,166
Discontinued Operations [Member]
Stock-based compensation	$ 0	$ (124)	$ 0	$ (207)

X

- Definition

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 14.F)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (h)(1)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

+ Details

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X

- Details

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X

- Details

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X

- Details

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X

- Details

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