Note 10 - Equity Incentive Plan - Other Award Activity (Details) - shares |
12 Months Ended | |
|---|---|---|
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Restricted Stock Units (RSUs) [Member] | ||
| Outstanding, shares (in shares) | 183,666 | 100,000 |
| Granted, shares (in shares) | 87,750 | 117,000 |
| Vested, shares (in shares) | (99,886) | (33,334) |
| Outstanding, shares (in shares) | 171,530 | 183,666 |
| Performance Stock Units (PSUs) [Member] | ||
| Outstanding, shares (in shares) | 114,000 | 0 |
| Granted, shares (in shares) | 0 | 114,000 |
| Vested, shares (in shares) | 0 | 0 |
| Outstanding, shares (in shares) | 114,000 | 114,000 |
| X | ||||||||||
- Definition The number of grants made 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). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition 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
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| X | ||||||||||
- Definition The number of equity-based payment instruments, excluding stock (or unit) options, that vested during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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