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Note 10 - Common Stock Warrants (Tables)

9 Months Ended

Sep. 30, 2025

Notes Tables

Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block]

		Warrants				Weighted- Average Exercise Price
Outstanding at December 31, 2023			210,946			$	50.96
Warrants granted			28,572				4.90
Warrants exercised			—				—
Warrants expired			—				—
Outstanding at September 30, 2024			239,518				56.63
Outstanding at December 31, 2024			10,836,275			$	1.41
Warrants granted			—				—
Warrants exercised			(1,119,908	)			0.76
Warrants expired			(5,184,427	)			0.66
Warrants surrendered and cancelled			(1,988,283	)			1.27
Warrants repurchased			(2,442,466	)			0.66
Outstanding at September 30, 2025			101,191				66.61

Schedule of Stockholders' Equity Note, Warrants or Rights Outstanding, Activity [Table Text Block]

Series		Exercise Price			Expiration Date		Warrants
July 2020 Warrants		$	2,021.25		January 22, 2026			1,714
July 2020 Warrants			52.50		January 22, 2026			2,206
TLF Warrants			822.96		January 15, 2026			13
November 2021 Warrants			220.50		September 11, 2028			4,975
November 2021 Warrants			52.50		September 11, 2028			15,308
September 2022 Warrants			220.50		September 11, 2028			1,659
November 2022 A-1 Warrants			220.50		November 20, 2028			2,268
December 2023 Warrants			8.75		June 21, 2029			35,992
June 2024 Warrants			2.57		December 17, 2029			22,556
July 2024 F-1 Warrants			0.66		July 30, 2029			14,500
Outstanding at September 30, 2025								101,191

Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block]

Warrant liabilities as of December 31, 2023		$	334
Decrease in fair value of December 2023 Warrants liability during period			(122	)
Fair value of March 2024 Warrant upon issuance			92
Increase in fair value of March 2024 Warrant liability during period			8
Reclassification of December 2023 Warrant liability to equity during period			(212	)
Reclassification of March 2024 Warrant liability to equity during period			(100	)
Warrant liabilities as of September 30, 2024		$	—

X

- Definition

Tabular disclosure of warrants or rights outstanding activity.

+ References

No definition available.

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Tabular disclosure of the fair value measurement of liabilities using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets), and gains or losses recognized in other comprehensive income (loss) and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs) by class of liability.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Subparagraph (b)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-3

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (d)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147482106/820-10-50-2

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- Definition

Tabular disclosure of warrants or rights issued. Warrants and rights outstanding are derivative securities that give the holder the right to purchase securities (usually equity) from the issuer at a specific price within a certain time frame. Warrants are often included in a new debt issue to entice investors by a higher return potential. The main difference between warrants and call options is that warrants are issued and guaranteed by the company, whereas options are exchange instruments and are not issued by the company. Also, the lifetime of a warrant is often measured in years, while the lifetime of a typical option is measured in months. Disclose the title of issue of securities called for by warrants and rights outstanding, the aggregate amount of securities called for by warrants and rights outstanding, the date from which the warrants or rights are exercisable, and the price at which the warrant or right is exercisable.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 505
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 3
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147481112/505-10-50-3

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