Note 11 - Income Taxes - Unrecognized Tax Benefits (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
|
| Unrecognized tax benefits | $ 0 | $ 0 |
| Increases for tax positions taken in the current year | 0 | 0 |
| Increases for tax positions taken in prior years | 0 | 0 |
| Decreases for tax positions taken in prior years | 0 | 0 |
| Settlements | 0 | 0 |
| Lapse of statute of limitations | 0 | 0 |
| Unrecognized tax benefits | $ 0 | $ 0 |
| X | ||||||||||
- Definition Amount of increase (decrease) in unrecognized tax benefits resulting from settlements with taxing authorities. No definition available.
|
| X | ||||||||||
- Definition Amount of unrecognized tax benefits. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of decrease in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of increase in unrecognized tax benefits resulting from tax positions that have been or will be taken in current period tax return. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of increase in unrecognized tax benefits resulting from tax positions taken in prior period tax returns. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of decrease in unrecognized tax benefits resulting from lapses of applicable statutes of limitations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|