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Note 4 - Real Property and Other Income, Expense (Details Textual) $ in Millions | Mar. 31, 2025 USD ($) | Dec. 31, 2024 USD ($) | Aug. 04, 2021 ft²
--- | --- | --- | ---
Lessor, Operating Lease, Payment to be Received, Remainder of Fiscal Year | $ 0.3 |  |
Lessor, Operating Lease, Payment to be Received, Year One | 0.4 |  |
Lessor, Operating Lease, Payment to be Received, Year Two | $ 0.2 |  |
Office Building [Member] | TEXAS |  |  |
Net Rentable Area (Square Foot) | ft² |  |  | 90,000
Percentage of Occupancy | 25.00% |  |
Accrual for Taxes Other than Income Taxes, Current | $ 0.1 | $ 0.3 |

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- Definition Carrying value as of the balance sheet date of obligations incurred and payable for real and property taxes. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(20)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 720 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147483384/720-30-45-1 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section 45 -Paragraph 8 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147483467/210-10-45-8 + Details
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