Note 10 - Other Assets - Other Assets (Details) - USD ($) $ in Thousands |
Dec. 31, 2022 |
Dec. 31, 2021 |
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|---|---|---|---|---|
| Nevada and Alameda facilities Right of Use Assets (1) | $ 463 | $ 514 | ||
| Equipment deposits (2) | [1] | 6 | 217 | |
| Other assets | 20 | 65 | ||
| Total other assets, non-current | $ 489 | $ 796 | ||
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| 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.
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| 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.
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| X | ||||||||||
- Definition Amount of noncurrent assets classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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