Note 11 - Share-based Compensation - Summary of RSU Activity (Details) - Restricted Stock Units (RSUs) [Member] - $ / shares	9 Months Ended	12 Months Ended
Sep. 30, 2024	Dec. 31, 2023
Awards other than options, unvested, balance (in shares)		810,588
Awards other than options, unvested, weighted average grant date fair value, balance (in dollars per share)		$ 1.73
Weighted average vesting period (Year)	3 years 3 months 3 days	2 years 6 months 7 days
Awards other than options, Granted (in shares)	800,336
Awards other than options, granted, weighted average grant date fair value (in dollars per share)	$ 2.71
Awards other than options, Vested (in shares)	(385,081)
Awards other than options, vested, weighted average grant date fair value (in dollars per share)	$ 2.11
Awards other than options, Forfeited and cancelled (in shares)	(237,727)
Awards other than options, forfeited and cancelled, weighted average grant date fair value (in dollars per share)	$ 2.26
Awards other than options, unvested, balance (in shares)	988,116
Awards other than options, unvested, weighted average grant date fair value, balance (in dollars per share)	$ 2.26

Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 718
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-Name Accounting Standards Codification
-Section 50
-Paragraph 2
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-Publisher FASB
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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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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.

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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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