Going Concern and Liquidity	12 Months Ended
May 31, 2026
Going Concern and Liquidity [Abstract]
Going Concern and Liquidity	NOTE 2. Going Concern and Liquidity These consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) which contemplates continuation of the Company as a going concern and the realization of assets and the satisfaction of liabilities in the normal course of business. The Company has incurred and expects to continue to incur significant costs in pursuit of the Company’s development plans. Funding of these activities has primarily been through the net proceeds received from the issuance of Class A ordinary shares and Preferred shares, as well as the issuance of related and third-party convertible debt and non-dilutive government grants. Horizon is a pre-revenue organization that is currently building a full-scale technical demonstrator aircraft in pursuit to certify its Cavorite X7 aircraft. Management estimates that cash on-hand of $78.3 million will be sufficient to fund our current operating plan for at least the next 12 months from the date these consolidated financial statements were available to be issued. There is substantial doubt around the Company’s ability to meet the going concern assumption beyond that period without securing additional capital. There can be no assurance that we will be successful in achieving our business plans, that our current capital will be sufficient to support our ongoing operations, or that any additional financing will be available in a timely manner or on acceptable terms, if at all. If events or circumstances occur such that we do not meet our business plans, we may be required to raise additional capital, alter, or scale back our aircraft design, development, and certification programs, or be unable to fund capital expenditures. Any such events could have a material adverse effect on our financial position, results of operations, cash flows, and ability to execute our business plans.

Going Concern and Liquidity

12 Months Ended

May 31, 2026

Going Concern and Liquidity [Abstract]

NOTE 2. Going Concern and Liquidity

These consolidated financial statements have been prepared in conformity with accounting principles generally accepted in the United States of America (“GAAP”) which contemplates continuation of the Company as a going concern and the realization of assets and the satisfaction of liabilities in the normal course of business. The Company has incurred and expects to continue to incur significant costs in pursuit of the Company’s development plans. Funding of these activities has primarily been through the net proceeds received from the issuance of Class A ordinary shares and Preferred shares, as well as the issuance of related and third-party convertible debt and non-dilutive government grants.

Horizon is a pre-revenue organization that is currently building a full-scale technical demonstrator aircraft in pursuit to certify its Cavorite X7 aircraft. Management estimates that cash on-hand of $78.3 million will be sufficient to fund our current operating plan for at least the next 12 months from the date these consolidated financial statements were available to be issued. There is substantial doubt around the Company’s ability to meet the going concern assumption beyond that period without securing additional capital.

There can be no assurance that we will be successful in achieving our business plans, that our current capital will be sufficient to support our ongoing operations, or that any additional financing will be available in a timely manner or on acceptable terms, if at all. If events or circumstances occur such that we do not meet our business plans, we may be required to raise additional capital, alter, or scale back our aircraft design, development, and certification programs, or be unable to fund capital expenditures. Any such events could have a material adverse effect on our financial position, results of operations, cash flows, and ability to execute our business plans.

- Definition

The entire disclosure when substantial doubt is raised about the ability to continue as a going concern. Includes, but is not limited to, principal conditions or events that raised substantial doubt about the ability to continue as a going concern, management's evaluation of the significance of those conditions or events in relation to the ability to meet its obligations, and management's plans that alleviated or are intended to mitigate the conditions or events that raise substantial doubt about the ability to continue as a going concern.

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