Note 6 - Operating Leases - Supplemental Balance Sheet Information (Details) - USD ($) $ in Thousands |
Sep. 30, 2025 |
Mar. 31, 2025 |
|---|---|---|
| Right-of-use assets | $ 6,167 | $ 6,167 |
| Accumulated lease amortization | (2,535) | (2,265) |
| Total right-of-use assets | 3,632 | 3,902 |
| Current lease liabilities | 576 | 555 |
| Non-current lease liabilities | 3,070 | 3,363 |
| Total lease liabilities | $ 3,646 | $ 3,918 |
| X | ||||||||||
- Definition Amount of accumulated amortization of lessee's right to use underlying asset under operating lease. No definition available.
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease, before accumulated amortization. No definition available.
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Present value of lessee's discounted obligation for lease payments from operating lease, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of lessee's right to use underlying asset under operating lease. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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