Note 11 - Assets Held for Sale and Discontinued Operations - Discontinued Operations (Details) - USD ($) |
3 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2025 |
Sep. 30, 2025 |
Sep. 30, 2024 |
Sep. 30, 2023 |
|
| Current assets held for sale | $ 21,337,000 | $ 21,337,000 | $ 20,155,000 | |
| Non-current assets held for sale | 4,828,000 | 4,828,000 | 17,869,000 | |
| Loss from discontinued operations, net of tax | (3,947,000) | (3,939,000) | $ (1,190,000) | |
| Current liabilities held for sale | 17,957,000 | 17,957,000 | 12,065,000 | |
| Loss from impairment of discontinued operations, net of tax | (10,413,000) | 0 | 0 | |
| Non-current liabilities held for sale | 7,473,000 | 7,473,000 | 6,403,000 | |
| Nestor Cables [Member] | ||||
| Net sales | 32,831,000 | 41,137,000 | 42,998,000 | |
| Cash and cash equivalents | 942,000 | 942,000 | 2,019,000 | |
| Accounts receivable, net | 8,094,000 | 8,094,000 | 7,466,000 | |
| Cost of sales | 30,665,000 | 38,095,000 | 37,576,000 | |
| Inventories, net | 11,591,000 | 11,591,000 | 10,670,000 | |
| Gross profit | 2,166,000 | 3,042,000 | 5,422,000 | |
| Other current assets | 710,000 | 710,000 | 0 | |
| Current assets held for sale | 21,337,000 | 21,337,000 | 20,155,000 | |
| Selling, general and administrative expenses | 6,212,000 | 7,030,000 | 5,712,000 | |
| Property, plant and equipment, net | 2,953,000 | 2,953,000 | 8,082,000 | |
| Operating loss | (4,046,000) | (3,988,000) | (290,000) | |
| Goodwill | 0 | 0 | 1,918,000 | |
| Intangible assets, net | 521,000 | 521,000 | 1,672,000 | |
| Net investment income | 0 | 0 | 7,000 | |
| Right-of-use lease assets | 2,842,000 | 2,842,000 | 4,840,000 | |
| Interest expense | 387,000 | 506,000 | 711,000 | |
| Other non-current assets | (1,488,000) | (1,488,000) | 1,357,000 | |
| Non-current assets held for sale | 4,828,000 | 4,828,000 | 17,869,000 | |
| Loss from discontinued operations before income taxes | (4,433,000) | (4,494,000) | (994,000) | |
| Current portion of lease liability | 1,342,000 | 1,342,000 | 825,000 | |
| Income tax (benefit) expense | (486,000) | (555,000) | 196,000 | |
| Current maturities of long-term debt | 2,347,000 | 2,347,000 | 0 | |
| Accounts payable | 3,390,000 | 3,390,000 | 3,937,000 | |
| Loss from discontinued operations, net of tax | (3,947,000) | (3,939,000) | (1,190,000) | |
| Accrued compensation | 2,265,000 | 2,265,000 | 2,268,000 | |
| Loss from impairment of discontinued operations before income taxes | 16,589,000 | (16,589,000) | 0 | 0 |
| Factoring liability | 6,260,000 | 6,260,000 | 2,920,000 | |
| Other current liabilities | 2,353,000 | 2,353,000 | 2,115,000 | |
| Income tax (benefit) expense | (6,176,000) | 0 | 0 | |
| Current liabilities held for sale | 17,957,000 | 17,957,000 | 12,065,000 | |
| Loss from impairment of discontinued operations, net of tax | (10,413,000) | 0 | $ 0 | |
| Long-term debt | 0 | 0 | 2,228,000 | |
| Long-term portion of lease liability | 7,468,000 | 7,468,000 | 4,014,000 | |
| Other non-current liabilities | 5,000 | 5,000 | 161,000 | |
| Non-current liabilities held for sale | $ 7,473,000 | $ 7,473,000 | $ 6,403,000 | |
| X | ||||||||||
- Definition Amount classified as accrued compensation attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Amount classified as factoring liability attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Amount classified as lease liability attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Amount classified as lease liability attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Amount classified as long-term debt attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Amount classified as long-term debt attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Amount classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Amount classified as right-of-use assets attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. No definition available.
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| X | ||||||||||
- Definition Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount before tax of income (loss) from operations classified as a discontinued operation. Excludes gain (loss) on disposal and provision for gain (loss) until its disposal. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after tax of income (loss) from operations classified as a discontinued operation. Excludes gain (loss) on disposal and provision for gain (loss) until disposal. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount before tax of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount after tax of (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of tax expense (benefit) attributable to income (loss) from operations classified as a discontinued operation. Excludes tax expense (benefit) for gain (loss) on disposal and for provision for gain (loss) until disposal. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount of tax (expense) benefit on (gain) loss recognized for the (reversal of write-down) write-down to fair value, less cost to sell, of a discontinued operation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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| X | ||||||||||
- Definition Amount classified as accounts, notes and loans receivable attributable to disposal group held for sale or disposed of. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount classified as accounts payable attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount classified as assets attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount classified as cash and cash equivalents attributable to disposal group held for sale or disposed of. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of costs of goods sold attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount of general and administrative expense attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount classified as goodwill attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of gross profit attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount classified as intangible assets, excluding goodwill, attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of interest expense attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of interest income attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount classified as inventory attributable to disposal group, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount classified as other assets attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount classified as other liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount classified as other liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount classified as property, plant and equipment attributable to disposal group held for sale or disposed of, expected to be disposed of after one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount of revenue attributable to disposal group, including, but not limited to, discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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| X | ||||||||||
- Definition Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of within one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Definition Amount classified as liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of beyond one year or the normal operating cycle, if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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| X | ||||||||||
- Details
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