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Note 3 - Basis of Presentation and Summary of Significant Accounting Policies - Outstanding Dilutive Securities (Details) - shares	9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021
Anti-dilutive securities (in shares)	257,553	211,815
Warrant [Member]
Anti-dilutive securities (in shares)	111,891	129,989
Share-Based Payment Arrangement, Option [Member]
Anti-dilutive securities (in shares)	141,500	75,990
Restricted Stock [Member]
Anti-dilutive securities (in shares)	4,162	5,836

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (c)
-URI https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

+ Details

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