Note 2 - Summary of Principal Accounting Policies (Details Textual) - USD ($) $ in Thousands |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Statement Line Items [Line Items] | |||
| Digital assets, safeguarded | $ 117,600 | ||
| Digital liabilities, safeguarded | 117,600 | ||
| Gains (losses) recognised in profit or loss including exchange differences, fair value measurement, entity's own equity instruments | $ 0 | ||
| Gains (losses) recognised in profit or loss including exchange differences, conversion or expiration of conversion option | 0 | ||
| Allowance for credit losses, financial assets | 0 | 0 | $ 0 |
| Change in allowance for credit losses of financial asses | $ 0 | $ 0 | $ 0 |