Note 4 - Summary of Significant Accounting Policies - Operating Lease Expenses and Supplemental Information (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Long-term operating lease contracts | $ 50 | $ 22 |
| Operating cash flows used for operating leases (US$’000) | 53 | 25 |
| Short-term operating lease contracts | 5 | 34 |
| Right-of-use assets obtained in exchange for new lease liabilities (US$’000) | 87 | 0 |
| Total | $ 55 | $ 56 |
| Weighted-average discount rate | 6.00% | 6.00% |
| X | ||||||||||
- Definition Amount of long-term lease cost, excluding expense for lease with term of more than one month. No definition available.
|
| X | ||||||||||
- Definition Amount of lease cost recognized by lessee for lease contract. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Weighted average discount rate for operating lease calculated at point in time. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of increase in right-of-use asset obtained in exchange for operating lease liability. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of short-term lease cost, excluding expense for lease with term of one month or less. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|