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Note 10 - Earnings Per Share (EPS) - Securities Excluded From the Diluted Per Share Calculation 2 (Details) - Exercise Price Greater Than Average Market Price Of Common Shares [Member] - shares	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Antidilutive securities (in shares)	5,075,021	4,901,848
Share-Based Payment Arrangement, Option [Member]
Antidilutive securities (in shares)	202,996	212,461
Warrant [Member]
Antidilutive securities (in shares)	4,872,025	4,689,387

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

+ Details

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