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Note 12 - Stockholders' Equity - The Key Assumptions Used to Value the Warrants (Details)	Nov. 10, 2022	Sep. 09, 2022	Sep. 08, 2022
Measurement Input, Price Volatility [Member] | The November 2021 Warrants [Member]
Warrants assumptions	0.795	0.796	0.796
Measurement Input, Price Volatility [Member] | Amended July 2020 Warrants [Member]
Warrants assumptions	0.795	0.796	0.796
Measurement Input, Expected Term [Member] | The November 2021 Warrants [Member]
Warrants assumptions	5.8	6.0	5.4
Measurement Input, Expected Term [Member] | Amended July 2020 Warrants [Member]
Warrants assumptions	3.2	3.4	3.4
Measurement Input, Risk Free Interest Rate [Member] | The November 2021 Warrants [Member]
Warrants assumptions	0.0393	0.0343	0.0343
Measurement Input, Risk Free Interest Rate [Member] | Amended July 2020 Warrants [Member]
Warrants assumptions	0.0415	0.0358	0.0358
Measurement Input, Expected Dividend Rate [Member] | The November 2021 Warrants [Member]
Warrants assumptions	0.0000	0.0000	0.0000
Measurement Input, Expected Dividend Rate [Member] | Amended July 2020 Warrants [Member]
Warrants assumptions	0.0000	0.0000	0.0000
Measurement Input, Share Price [Member] | The November 2021 Warrants [Member]
Warrants assumptions	1.40	4.55	3.15
Measurement Input, Share Price [Member] | Amended July 2020 Warrants [Member]
Warrants assumptions	1.05	3.50	0.70

X

- Definition

Value of input used to measure outstanding warrant and right embodying unconditional obligation requiring redemption by transferring asset at specified or determinable date or upon event certain to occur.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 820
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (bbb)(2)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482106/820-10-50-2

+ Details

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