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Note 5 - Goodwill and Other Intangibles - Intangible Assets (Details) - USD ($) $ in Thousands | Dec. 31, 2023 | Mar. 31, 2023 | Dec. 31, 2022
--- | --- | --- | ---
Accumulated Amortization | $ (11,144) | $ (9,524) |
Net Book Value |  |  | $ 5,107
Intangible assets, gross amount | 18,051 | 18,051 |
Intangible assets, net | 6,907 | 8,527 |
Trade Names [Member] |  |  |
Trade name and trademarks | 1,800 | 1,800 |
Backlog [Member] |  |  |
Gross Amount | 681 | 681 |
Accumulated Amortization | (681) | (675) |
Net Book Value | $ 0 | 6 |
Estimated Useful Life (Year) | 2 years |  |
Customer Relationships [Member] |  |  |
Gross Amount | $ 9,600 | 9,600 |
Accumulated Amortization | (6,232) | (4,980) |
Net Book Value | $ 3,368 | 4,620 |
Estimated Useful Life (Year) | 7 years |  |
Core Technology and Know-how [Member] |  |  |
Gross Amount | $ 5,970 | 5,970 |
Accumulated Amortization | (4,231) | (3,869) |
Net Book Value | $ 1,739 | $ 2,101 |
Core Technology and Know-how [Member] | Minimum [Member] |  |  |
Estimated Useful Life (Year) | 5 years |  |
Core Technology and Know-how [Member] | Maximum [Member] |  |  |
Estimated Useful Life (Year) | 10 years |  |

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- Definition Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. + References No definition available. + Details
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