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Note 3 - Discontinued Operations - Schedule of Disposal Groups (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023
Loss from discontinued operations, net of tax | $ (3,919) | $ (8,532)
B Medical Systems Business [Member] | Discontinued Operations, Held-for-Sale [Member] |  |
Disposal group, revenue | 17,591 | 12,592
Disposal group, cost of revenue | 14,728 | 12,824
Gross profit | 2,863 | (232)
Research and development | 1,635 | 1,180
Selling, general and administrative | 6,187 | 8,687
Restructuring charges | 314 | 334
Total operating expenses | 8,136 | 10,201
Operating loss | (5,273) | (10,433)
Interest income, net | 5 | 127
Other income, net | 530 | 164
Loss before income taxes | (4,738) | (10,142)
Income tax benefit | (819) | (1,610)
Loss from discontinued operations, net of tax | (3,919) | (8,532)
Product [Member] | B Medical Systems Business [Member] | Discontinued Operations, Held-for-Sale [Member] |  |
Disposal group, revenue | 14,288 | 9,686
Disposal group, cost of revenue | 11,422 | 10,056
Service [Member] | B Medical Systems Business [Member] | Discontinued Operations, Held-for-Sale [Member] |  |
Disposal group, revenue | 3,303 | 2,906
Disposal group, cost of revenue | $ 3,306 | $ 2,768

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