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Note 5 - Leases - Balance Sheet Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Mar. 31, 2024 | Mar. 31, 2023
Assets [Abstract] |  |
Property, Plant and Equipment, Net | $ 56,758 | $ 53,933
Liabilities, Current [Abstract] |  |
Accounts Payable and Accrued Liabilities, Current | 43,886 | 36,847
Liabilities, Noncurrent [Abstract] |  |
Operating and Finance Lease Liabilities, Noncurrent | 2,782 | 1,222
Finance lease – amortization of ROU asset | 106 | 105
Finance lease – interest on lease liability | 3 | 4
Operating lease expense | 234 | 127
Lease, Cost | 343 | 236
Operating lease right-of-use asset | 2,841 | 1,270
Finance lease right-of-use asset | $ 404 | $ 430
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration] |  | Property, Plant and Equipment, Net
Total right-of-use assets | $ 3,245 | $ 1,700
Operating lease liability, current | $ 101 | $ 101
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] |  | Accounts Payable and Accrued Liabilities, Current
Finance lease liability, current | $ 54 | $ 107
Operating lease liability, non-current | $ 2,782 | $ 1,168
Operating Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] |  | Operating and Finance Lease Liabilities, Noncurrent
Finance lease liability, non-current | $ 0 | $ 54
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration] |  | Operating and Finance Lease Liabilities, Noncurrent
Total lease liabilities | $ 2,937 | $ 1,430

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- Definition Amount of interest expense on finance lease liability. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 53 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479589/842-20-55-53 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 45 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479041/842-20-45-4 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-4 + Details
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