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Note 6 - Basic and Diluted Net Income (Loss) Per Share - Schedule of Dilutive Securities (Details) - shares shares in Thousands	9 Months Ended
	Sep. 30, 2025	Sep. 30, 2024
Total Number of Potentially Dilutive Shares Excluded from the basic and diluted net loss per share calculation (in shares)	10,300	8,879
Common Stock Options and Warrants [Member]
Total Number of Potentially Dilutive Shares Excluded from the basic and diluted net loss per share calculation (in shares)	9,139	7,728
Debt with Conversion Feature [Member]
Total Number of Potentially Dilutive Shares Excluded from the basic and diluted net loss per share calculation (in shares)	1,161	1,151

X

- Definition

Securities (including those issuable pursuant to contingent stock agreements) that could potentially dilute basic earnings per share (EPS) or earnings per unit (EPU) in the future that were not included in the computation of diluted EPS or EPU because to do so would increase EPS or EPU amounts or decrease loss per share or unit amounts for the period presented.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 260
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482662/260-10-50-1

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