Note 3 - Discontinued Operations - Schedule of Disposal Groups - Non-cash Items (Details) - USD ($) $ in Thousands	3 Months Ended
Dec. 31, 2025	Dec. 31, 2024
Loss on assets held for sale	$ 9,696	$ 0
B Medical Systems Business [Member] \| Discontinued Operations, Held-for-Sale [Member]
Loss on assets held for sale	9,696	0
B Medical Systems Business [Member] \| Discontinued Operations, Held-for-Sale [Member] \| Discontinued Operations [Member]
Depreciation and amortization	0	3,846
Capital expenditures	347	757
Loss on assets held for sale	$ 9,696	$ 0

Amount of capital expenditure attributable to discontinued operations.

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