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Note 4 - Assets Held for Sale and Discontinued Operations - Held for Sale and Discontinued Operations (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 31, 2023 | Jul. 31, 2022 | Jul. 31, 2023 | Jul. 31, 2022
Net (loss) income from discontinued operations | $ 0 | $ (162) | $ 0 | $ 224
Discontinued Operations, Held-for-Sale [Member] |  |  |  |
Revenue from discontinued operations | 0 | 0 | 0 | 0
Cost of discontinued operations | 0 | 23 | 0 | 48
Selling, general and administrative | 0 | 101 | 0 | 214
Total operating expenses | 0 | 101 | 0 | 214
Operating loss | 0 | (124) | 0 | (262)
Other (expense) income | 0 | (38) | 0 | 486
(Loss) income before income taxes from discontinued operations | 0 | (162) | 0 | 224
Net (loss) income from discontinued operations | $ 0 | $ (162) | 0 | 224
Gross profit from sale of assets held-for-sale |  |  | 0 | (358)
Sale of assets held for sale |  |  | $ 0 | $ 361

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