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Note 13 - Segment Information - Segment Information 2 (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Total share-based compensation	$ 1,118	$ 771	$ 1,940	$ 1,638
Single Reportable Segment [Member]
Total operating expenses, excluding share-based compensation	9,380	7,236	19,040	14,513
Total share-based compensation	1,118	771	1,940	1,638
Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense
Total share-based compensation	606	538	1,125	1,216
Location, Statement of Income, Balance [Axis]: us-gaap:GeneralAndAdministrativeExpense | Single Reportable Segment [Member]
Total operating expenses, excluding share-based compensation	1,739	1,647	3,715	3,457
Total share-based compensation	606	538	1,125	1,216
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense
Total share-based compensation	512	233	815	422
Location, Statement of Income, Balance [Axis]: us-gaap:ResearchAndDevelopmentExpense | Single Reportable Segment [Member]
Total operating expenses, excluding share-based compensation	7,641	5,589	15,325	11,056
Total share-based compensation	$ 512	$ 233	$ 815	$ 422

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+ References

No definition available.

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- Definition

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+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section S45
-Paragraph 1
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147479983/718-10-S45-1

Reference 2: 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 3: 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

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