Note 10 - Leases - Operating Lease Costs (Details) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Mar. 26, 2021 |
Dec. 31, 2022 |
Dec. 31, 2021 |
|
| Operating lease costs | $ 200 | $ 537 | |
| Gain on derecognition of operating lease | $ (500) | 0 | (522) |
| Sublease income | 0 | (199) | |
| Loss on termination of sublease | 0 | 331 | |
| Net lease costs | $ 200 | $ 147 | |
| Weighted-average remaining lease term – operating leases (in years) (Year) | 6 months | 1 year 6 months | |
| Weighted-average remaining discount rate – operating leases | 12.90% | 12.90% | |
| X | ||||||||||
- Definition Amount of gain (loss) on termination of sublease. No definition available.
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| X | ||||||||||
- Definition Amount of gain (loss) on termination of lease before expiration of lease term. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of lease cost recognized by lessee for lease contract. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of single lease cost, calculated by allocation of remaining cost of lease over remaining lease term. Includes, but is not limited to, single lease cost, after impairment of right-of-use asset, calculated by amortization of remaining right-of-use asset and accretion of lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Weighted average remaining lease term for operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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| X | ||||||||||
- Definition Amount of sublease income excluding finance and operating lease expense. Reference 1: http://www.xbrl.org/2003/role/exampleRef
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