Note 7 - Other Assets - Other Assets (Details) - USD ($) |
Dec. 31, 2025 |
Dec. 31, 2024 |
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|---|---|---|---|---|---|---|
| Nevada facilities Right of Use Assets (1) | [1] | $ 442,000 | $ 542,000 | |||
| Equipment deposits (2) | [2] | 0 | 4,540,000 | |||
| Other assets | 20,000 | 20,000 | ||||
| Total other assets, non-current | $ 462,000 | $ 5,102,000 | ||||
| ||||||
| X | ||||||||||
- Definition Amount of equipment deposits expected to be realized or consumed after one year or normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease and finance lease. No definition available.
|
| X | ||||||||||
- Definition Amount of other miscellaneous assets expected to be realized or consumed after one year or normal operating cycle, if longer. No definition available.
|
| X | ||||||||||
- Definition Amount of noncurrent assets classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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