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Note 3 - Summary of Significant Accounting Policies - Outstanding Dilutive Securities (Details) - shares	3 Months Ended		12 Months Ended
	Mar. 31, 2024	Mar. 31, 2023	Dec. 31, 2023	Dec. 31, 2022
Preferred Series A-1 (in shares)	621,719	3,489,347	947,841	3,489,335
Series A-1 Preferred Stock [Member]
Preferred Series A-1 (in shares)			0	1,960,600
Series A-2 Preferred Stock [Member]
Preferred Series A-1 (in shares)			0	335,711
Series B Preferred Stock [Member]
Preferred Series A-1 (in shares)			0	1,034,890
Warrant [Member]
Preferred Series A-1 (in shares)	102,462	43,621	598,457	43,618
Share-Based Payment Arrangement, Option [Member]
Preferred Series A-1 (in shares)	519,257	114,525	349,384	114,516

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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