Note 10 - Stock-based Compensation - Schedule of Restricted Stock Awards (Details) - Restricted Stock [Member] - $ / shares	3 Months Ended
Sep. 30, 2024	Jun. 30, 2024	Mar. 31, 2024	Dec. 31, 2023
Balance (unvested) (in shares)	66,666	66,666	124,166
Unvested, weighted average grant date fair value (in dollars per share)	$ 5.66	$ 5.66	$ 5.66	$ 5.2
Vested (in shares)	(33,333)	0	(57,500)
Vested, weighted average grant date fair value (in dollars per share)	$ 2.08	$ 0	$ 4.64
Balance (unvested) (in shares)	33,333	66,666	66,666

The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(i)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 718
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (c)(2)(ii)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147480429/718-10-50-2

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period.

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