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Note 12 - Leases (Tables) | 6 Months Ended
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Sep. 30, 2025
Notes Tables |
Lease, Cost [Table Text Block] |
|  | Six Months Ended |  |  | Six Months Ended |
|  | September 30, |  |  | September 30, |
|  | 2025 |  |  | 2024 |
Fixed rent cost |  | $ | 153 |  |  | $ | 243 |
Short term lease cost |  |  | 70 |  |  |  | 110 |
Total operating lease cost |  | $ | 223 |  |  | $ | 353 |
|  | September 30, |  |  | March 31, |
Operating leases |  | 2025 |  |  | 2025 |
Operating lease right-of-use assets |  | $ | 80 |  |  | $ | 97 |
Operating lease liability, current |  | $ | 10 |  |  | $ | - |
Operating lease liability, noncurrent |  |  | 76 |  |  |  | 99 |
Total operating lease liabilities |  | $ | 86 |  |  | $ | 99 |

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- Definition Tabular disclosure of lessee's lease cost. Includes, but is not limited to, interest expense for finance lease, amortization of right-of-use asset for finance lease, operating lease cost, short-term lease cost, variable lease cost and sublease income. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

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- References No definition available. + Details
Name: | us-gaap_TableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration