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Income taxes (Tables) | 12 Months Ended
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Sep. 30, 2025
Income Tax Disclosure [Abstract] |
Schedule of effective income tax rate reconciliation | The following table is a reconciliation of the components that caused the Company’s provision for income taxes to differ from amounts computed by applying the U.S. federal statutory rate of 21% (in thousands): Schedule of effective income tax rate reconciliation
|  | Year ended September 30,
|  | 2025 |
Statutory U.S. Federal income tax |  | $ | (2,034 | ) |  |  | 21.0 | %
State income taxes, net |  |  | (110 | ) |  |  | 1.1 | %
Meals and entertainment |  |  | (2 | ) |  |  | — | %
Bargain purchase |  |  | (275 | ) |  |  | 2.8 | %
Warrant valuation |  |  | — |  |  |  | — | %
Tax effect of non-deductible equity instruments |  |  | — |  |  |  | — | %
Change in valuation allowance |  |  | 2,419 |  |  |  | (25.0 | )%
Other |  |  | 2 |  |  |  | — | %
Total provision |  | $ | — |  |  |  | (0.1 | )%
Schedule of deferred tax assets and liabilities | Significant components of the Company’s deferred tax assets and liabilities are as follows (in thousands): Schedule of deferred tax assets and liabilities
|  | September 30,
|  | 2025 |
Deferred income tax assets: |  |  |  |
Fixed assets |  | $ | (15 | )
Intangibles |  |  | — |
Inventory |  |  | 38 |
Stock options |  |  | 5,266 |
Payroll |  |  | 39 |
Other assets |  |  | 2,395 |
Lease assets (liabilities), net |  |  | 1 |
Net operating loss carryforwards |  |  | 23,962 |
Gross deferred tax assets |  |  | 31,686 |
Valuation allowance |  |  | (31,686 | )
Net deferred tax assets |  | $ | — |
Schedule of valuation allowance | The following table reconciles the statutory federal income tax rate to the Company’s effective tax rate for the year ended September 30, 2025 (in thousands, except percentages): Schedule of valuation allowance
|  | Amount ($) |  |  | Effect on ETR (%) |
|  | Year Ended September 30, 2025 |
|  | Amount ($) |  |  | Effect on ETR (%) |
Federal statutory rate |  | $ | (2,034 | ) |  |  | 21.0 | %
State income taxes, net of federal benefit |  |  | 2 |  |  |  | — | %
Nondeductible items |  |  | 2 |  |  |  | — | %
Bargain purchase |  |  | (275 | ) |  |  | 2.8 | %
Change in valuation allowance |  |  | 2,307 |  |  |  | 25.0 | %
Other |  |  | (2 | ) |  |  | — | %
Total income tax provision |  | $ | — |  |  |  | — | %

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- Definition Tabular disclosure of the components of net deferred tax asset or liability recognized in an entity's statement of financial position, including the following: the total of all deferred tax liabilities, the total of all deferred tax assets, the total valuation allowance recognized for deferred tax assets. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 231 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482663/740-10-55-231 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12A -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12A Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 12 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-12 + Details
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- Definition Tabular disclosure of valuation allowances to reduce deferred tax assets to net realizable value, including identification of the deferred tax asset more likely than not will not be fully realized and the corresponding amount of the valuation allowance. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482685/740-10-50-2 + Details
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