Note 10 - Balance Sheet Detail (Details Textual) - USD ($) $ in Millions |
3 Months Ended | 9 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2025 |
Sep. 30, 2024 |
|
| Depreciation | $ 0.4 | $ 0.1 | $ 1.2 | $ 0.4 |
| Accounts Receivable, Payments to be Received, Next Twelve Months | 0.4 | 0.4 | ||
| Accounts Receivable, Payments to be Received, Two Years | 0.5 | 0.5 | ||
| Accounts Receivable, Payments to be Received, Three Years | $ 0.9 | $ 0.9 | ||
| Minimum [Member] | ||||
| Payment Extension Term to Customers (Year) | 12 years | |||
| Maximum [Member] | ||||
| Payment Extension Term to Customers (Year) | 36 years | |||
| X | ||||||||||
- Definition Amount of undiscounted cash flows to be received for accounts receivable long term in the next fiscal year following latest fiscal year. No definition available.
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| X | ||||||||||
- Definition Amount of undiscounted cash flows to be received for accounts receivable long term in the third fiscal year following latest fiscal year. No definition available.
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| X | ||||||||||
- Definition Amount of undiscounted cash flows to be received for accounts receivable long term in the second fiscal year following latest fiscal year. No definition available.
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| X | ||||||||||
- Definition Period of payment extension to customers. No definition available.
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| X | ||||||||||
- Definition The amount of expense recognized in the current period that reflects the allocation of the cost of tangible assets over the assets' useful lives. Includes production and non-production related depreciation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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| X | ||||||||||
- Details
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