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Note 12 - Contingencies (Details Textual) $ in Thousands |  |  |  |  |  | 1 Months Ended | 2 Months Ended | 12 Months Ended | 24 Months Ended |  |
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Nov. 12, 2025 | Sep. 06, 2024 | Aug. 06, 2024 | Mar. 18, 2024 | Jun. 30, 2022 | Feb. 28, 2025 USD ($) | Oct. 26, 2021 | Dec. 31, 2025 USD ($) | Nov. 09, 2023 | Oct. 31, 2025 USD ($) | May 31, 2025 USD ($)
Estimated Litigation Liability |  |  |  |  |  |  |  | $ 32,750 |  |  |
Loss Contingency Accrual, Provision |  |  |  |  |  |  |  | 35,250 |  |  |
Violations of Federal Securities Laws [Member] |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, New Claims Filed, Number |  |  |  |  | 1 |  | 4 |  |  |  |
Estimated Litigation Liability |  |  |  |  |  |  |  | $ 31,250 |  |  | $ 31,250
Shareholder Derivative Actions [Member] |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, New Claims Filed, Number |  | 2 |  | 2 |  |  |  |  | 5 |  |
Legal Fees |  |  |  |  |  | $ 1,000 |  |  |  |  |
Shareholder Derivative Actions, Texas Court [Member] |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, New Claims Filed, Number | 4 |  |  |  |  |  |  |  | 3 |  |
Shareholder Derivative Actions, Texas State Court Member |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, New Claims Filed, Number |  |  |  |  |  |  |  |  | 1 |  |
Shareholder Derivative Actions, Delaware Court [Member] |  |  |  |  |  |  |  |  |  |  |
Loss Contingency, New Claims Filed, Number |  |  |  |  |  |  |  |  | 1 |  |
Anti-SLAPP Lawsuit [Member] |  |  |  |  |  |  |  |  |  |  |
Estimated Litigation Liability |  |  |  |  |  |  |  |  |  | $ 2,500 |
Number of Former Employees |  |  | 2 |  |  |  |  |  |  |  |

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- Definition The amount of expense provided in the period for legal costs incurred on or before the balance sheet date pertaining to resolved, pending or threatened litigation, including arbitration and mediation proceedings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Subparagraph (k) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479105/946-220-45-3 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(2)(b)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479134/946-220-S99-1 Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03(6)) -SubTopic 10 -Topic 220 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483621/220-10-S99-2 + Details
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- Definition Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 450 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483076/450-20-50-1 + Details
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