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Note 6 - Stockholders' Equity and Dilutive Equity Instruments (Details Textual) - USD ($) $ / shares in Units, $ in Thousands	1 Months Ended	9 Months Ended
	Jul. 31, 2023	Sep. 30, 2023	Sep. 30, 2022
Proceeds from Warrant Exercises		$ 111,483	$ 0
Out-of-the-money Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)		861,310
GLF Equity Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 100
Series A Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		57.06
Series B Warrants [Member]
Class of Warrant or Right, Exercise Price of Warrants or Rights (in dollars per share)		$ 62.28
Series A and B Warrants [Member]
Class of Warrant or Right, Outstanding (in shares)	2,000,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights (in shares)	1,900,000
Proceeds from Warrant Exercises	$ 111,500
Class of Warrant or Right, Expired (in shares)	3,100,000

X

- Definition

Represents the amount of warrants or rights expired.

+ References

No definition available.

+ Details

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X

- Definition

Exercise price per share or per unit of warrants or rights outstanding.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-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

+ Details

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X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-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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X

- Definition

Number of warrants or rights outstanding.

+ References

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X

- Definition

The cash inflow associated with the amount received from holders exercising their stock warrants.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 230
-SubTopic 10
-Name Accounting Standards Codification
-Section 45
-Paragraph 14
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482740/230-10-45-14

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