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Note 9 - Incentive Plans (Details Textual) - USD ($) |  |  |  | 3 Months Ended |  |
--- | --- | --- | --- | --- | --- | ---
Jun. 04, 2024 | Jun. 01, 2023 | Nov. 04, 2021 | Mar. 31, 2025 | Mar. 31, 2024 | Oct. 31, 2024 | Jun. 01, 2022
Share-Based Payment Arrangement, Expense |  |  |  | $ 177,000 | $ 3,798,000 |  |
Share-Based Payment Arrangement, Option [Member] |  |  |  |  |  |  |
Share-Based Payment Arrangement, Expense |  |  |  | $ 12,000 | 52,000 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross |  |  |  | 1,949,000 |  |  |
Restricted Stock [Member] |  |  |  |  |  |  |
Share-Based Payment Arrangement, Expense |  |  |  | $ 0 | 1,800,000 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) |  |  | 1,500,500 |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period (Year) |  |  | 3 years |  |  |  |
Restricted Stock [Member] | Outside Directors [Member] |  |  |  |  |  |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Grants in Period (in shares) | 53,879 | 58,767 |  |  |  |  |
Restricted Stock [Member] | Outside Directors [Member] | June 4, 2024 [Member] |  |  |  |  |  |  |
Share-Based Payment Arrangement, Expense |  |  |  | 189,000 |  |  |
Share-Based Payment Arrangement, Nonvested Award, Excluding Option, Cost Not yet Recognized, Amount |  |  |  | 126,000 |  |  |
Restricted Stock [Member] | Outside Directors [Member] | June 1, 2023 [Member] |  |  |  |  |  |  |
Share-Based Payment Arrangement, Expense |  |  |  | 0 | 189,000 |  |
Contractual Equity-based Bonus [Member] |  |  |  |  |  |  |
Share-Based Payment Arrangement, Expense |  |  |  | $ 0 | 1,800,000 |  |
Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized (in shares) |  |  |  |  |  |  | 600,000
Share-Based Compensation Arrangement by Share-Based Payment Award, Equity Instruments Other than Options, Nonvested, Number |  |  |  |  |  | 2,100,500 |
The 401K Plan [Member] |  |  |  |  |  |  |
Defined Contribution Plan, Period of Employment for Eligibility (Month) |  |  |  | 3 months |  |  |
Defined Contribution Plan, Maximum Annual Contributions Per Employee, Percent |  |  |  | 80.00% |  |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Match |  |  |  | 100.00% |  |  |
Defined Contribution Plan, Employer Matching Contribution, Percent of Employees' Gross Pay |  |  |  | 4.00% |  |  |
Defined Contribution Plan, Employer Discretionary Contribution Amount |  |  |  | $ 173,000 | $ 201,000 |  |

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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479983/718-10-S45-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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