Note 1 - Organization and Description of Business	3 Months Ended
Mar. 31, 2026
Notes to Financial Statements
Business Description and Basis of Presentation [Text Block]	1. Organization and Description of Business Sono Group N.V. (“Sono N.V.”) is a public company with limited liability (naamloze vennootschap) incorporated under the laws of the Netherlands. The Company is registered in the business register at the Netherlands Chamber of Commerce (trade register number: 80683568). In November 2021, the Company completed its initial public offering, and its ordinary shares commenced trading on The Nasdaq Global Market on November 17, 2021 under the ticker symbol “SEV”. On February 15, 2024, Nasdaq filed a Form 25 Notification of Delisting with the U.S. Securities and Exchange Commission (the “SEC”) to complete the delisting of the Company’s ordinary shares from Nasdaq. On July 2, 2024, the quoting of the Company’s ordinary shares commenced on OTCQB under the ticker symbol “SEVCF”. On September 4, 2025, the Company received approval to list its ordinary shares on Nasdaq, and the ordinary shares commenced trading on the Nasdaq Capital Market under the ticker symbol “SSM” on September 5, 2025. The business address of Sono N.V. as of the date of this Quarterly Report is 4965 Trinidad Drive, Land O’ Lakes, FL 34639, United States of America. As of March 31, 2026, Sono N.V.’s wholly-owned subsidiaries were (i) Sono Motors GmbH, a German limited liability company (Gesellschaft mit beschränkter Haftung) (the “Subsidiary”), registered in the commercial register (Handelsregister) at the local court (Amtsgericht) of Munich, Germany, under HRB 224131, with registered headquarters at Waldmeisterstraße 93, 80935 Munich, Germany, and (ii) Sono Group S.à r.l., a private limited liability company (société à responsabilité limitée) incorporated under the laws of the Grand Duchy of Luxembourg, having its registered office at 8 Avenue de la Gare, L-1610 Luxembourg, Grand Duchy of Luxembourg, which was funded with €12,000 for purposes of providing share capital and had no operations during the three months ended March 31, 2026. As of March 31, 2026, Sono N.V. was the ultimate parent of the Subsidiary and Sono Group S.à r.l. Subsequent to March 31, 2026, Sono N.V. sold the Subsidiary pursuant to a Share Purchase and Transfer Agreement, dated May 4, 2026 (the “SPA”), as a result of which Sono N.V. ceased to be the ultimate parent of the Subsidiary on May 4, 2026. Hereinafter, unless otherwise indicated or the context otherwise requires, the terms “Sono Group”, “Sono”, “the Company”, “we”, “our”, “us” or similar terms, refer to Sono N.V. together with its consolidated subsidiaries as of March 31, 2026. Sono Group historically intended to develop and manufacture electric vehicles with integrated solar panels (the “Sion passenger car program”) and to license its solar technology to other Original Equipment Manufacturers (“OEMs”). On February 24, 2023, the Company announced the decision to terminate the Sion passenger car program and to pivot the business model to exclusively retrofitting and integrating Sono Group’s solar technology onto third party vehicles due to lack of available funding. As a consequence, management determined to apply for the opening of self-administration proceedings with respect to Sono N.V. and the Subsidiary (the “Self-Administration Proceedings”) on May 15, 2023. The Subsidiary withdrew its application for Preliminary Self-Administration Proceedings on January 31, 2024, and the Subsidiary exited its Self-Administration Proceedings on February 29, 2024. The Company reconsolidated the Subsidiary effective March 1, 2024 following its exit from the Self-Administration Proceedings. On March 14, 2026, the Company’s supervisory board resolved to terminate all current and future funding commitments to the Subsidiary and to exit the legacy solar operations conducted through the Subsidiary, with immediate effect. On the same date, the Company’s management board, with the approval of the supervisory board, adopted a digital asset treasury strategy (the “Treasury Strategy”). Under the Treasury Strategy, the principal holding in the Company’s treasury reserve on its balance sheet is allocated to digital assets, principally Bitcoin(“Bitcoin” or “BTC”), by applying a covered-call yield strategy. In connection with the Treasury Strategy, on March 10, 2026, the Company entered into a 2002 ISDA Master Agreement, a related Schedule and a Credit Support Annex with Blockchain.com (BVI) II Limited (“Blockchain.com”), facilitating the Company to enter into derivative and/or hedging transactions to manage the risk associated with the Treasury Strategy. As of March 31, 2026, management concluded that the Subsidiary met the criteria to be classified as held for sale and that the planned disposition (which was completed subsequent to quarter end on May 4, 2026, as further described under Note 16 (Subsequent Events)) represents a strategic shift that has had, or will have, a major effect on the Company’s operations and financial results. Accordingly, the results of operations of the Subsidiary have been presented as discontinued operations, and the related assets and liabilities have been presented as assets and liabilities of discontinued operations classified as held for sale, for all periods presented. Subsequent to March 31, 2026, on May 4, 2026, the Company sold and transferred 100% of the outstanding share capital of the Subsidiary to third-party purchasers. See Note 3 (Liquidity and Going Concern Analysis), Note 4 (Discontinued Operations and Assets and Liabilities Held for Sale), Note 5 (Digital Assets), Note 6 (Written Covered Bitcoin Call Options), Note 8 (Convertible Notes, Embedded Derivatives and Pre-Funded Warrants) and Note 16 (Subsequent Events) for additional information. These unaudited condensed consolidated financial statements reflect all adjustments, including normal recurring adjustments, which, in the opinion of management, are necessary to present fairly the financial position, results of operations and cash flows for the periods presented in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”). On a consolidated basis, the Company’s operations during the three months ended March 31, 2026 and the three months ended March 31, 2025 are comprised of the parent company, Sono N.V., and the Subsidiary. All significant intercompany transactions and balances have been eliminated upon consolidation. Certain amounts in the prior period unaudited condensed consolidated financial statements have been reclassified to conform to the current period presentation, including the presentation of the Subsidiary as a discontinued operation. In addition, effective January 1, 2026, the Company changed its reporting currency from the euro to the U.S. dollar, and all prior-period financial information presented in these unaudited condensed consolidated financial statements has been recast into U.S. dollars as if the U.S. dollar had been the Company’s reporting currency since the earliest period presented. See Note 2 (Basis of Presentation, Consolidation and Summary of Significant Accounting Policies) for additional information regarding the change in reporting currency.

Note 1 - Organization and Description of Business

3 Months Ended

Mar. 31, 2026

Business Description and Basis of Presentation [Text Block]

1. Organization and Description of Business

Sono Group N.V. (“Sono N.V.”) is a public company with limited liability (naamloze vennootschap) incorporated under the laws of the Netherlands. The Company is registered in the business register at the Netherlands Chamber of Commerce (trade register number: 80683568).

In November 2021, the Company completed its initial public offering, and its ordinary shares commenced trading on The Nasdaq Global Market on November 17, 2021 under the ticker symbol “SEV”. On February 15, 2024, Nasdaq filed a Form 25 Notification of Delisting with the U.S. Securities and Exchange Commission (the “SEC”) to complete the delisting of the Company’s ordinary shares from Nasdaq. On July 2, 2024, the quoting of the Company’s ordinary shares commenced on OTCQB under the ticker symbol “SEVCF”. On September 4, 2025, the Company received approval to list its ordinary shares on Nasdaq, and the ordinary shares commenced trading on the Nasdaq Capital Market under the ticker symbol “SSM” on September 5, 2025.

The business address of Sono N.V. as of the date of this Quarterly Report is 4965 Trinidad Drive, Land O’ Lakes, FL 34639, United States of America. As of March 31, 2026, Sono N.V.’s wholly-owned subsidiaries were (i) Sono Motors GmbH, a German limited liability company (Gesellschaft mit beschränkter Haftung) (the “Subsidiary”), registered in the commercial register (Handelsregister) at the local court (Amtsgericht) of Munich, Germany, under HRB 224131, with registered headquarters at Waldmeisterstraße 93, 80935 Munich, Germany, and (ii) Sono Group S.à r.l., a private limited liability company (société à responsabilité limitée) incorporated under the laws of the Grand Duchy of Luxembourg, having its registered office at 8 Avenue de la Gare, L-1610 Luxembourg, Grand Duchy of Luxembourg, which was funded with €12,000 for purposes of providing share capital and had no operations during the three months ended March 31, 2026. As of March 31, 2026, Sono N.V. was the ultimate parent of the Subsidiary and Sono Group S.à r.l. Subsequent to March 31, 2026, Sono N.V. sold the Subsidiary pursuant to a Share Purchase and Transfer Agreement, dated May 4, 2026 (the “SPA”), as a result of which Sono N.V. ceased to be the ultimate parent of the Subsidiary on May 4, 2026. Hereinafter, unless otherwise indicated or the context otherwise requires, the terms “Sono Group”, “Sono”, “the Company”, “we”, “our”, “us” or similar terms, refer to Sono N.V. together with its consolidated subsidiaries as of March 31, 2026.

Sono Group historically intended to develop and manufacture electric vehicles with integrated solar panels (the “Sion passenger car program”) and to license its solar technology to other Original Equipment Manufacturers (“OEMs”). On February 24, 2023, the Company announced the decision to terminate the Sion passenger car program and to pivot the business model to exclusively retrofitting and integrating Sono Group’s solar technology onto third party vehicles due to lack of available funding. As a consequence, management determined to apply for the opening of self-administration proceedings with respect to Sono N.V. and the Subsidiary (the “Self-Administration Proceedings”) on May 15, 2023. The Subsidiary withdrew its application for Preliminary Self-Administration Proceedings on January 31, 2024, and the Subsidiary exited its Self-Administration Proceedings on February 29, 2024. The Company reconsolidated the Subsidiary effective March 1, 2024 following its exit from the Self-Administration Proceedings.

On March 14, 2026, the Company’s supervisory board resolved to terminate all current and future funding commitments to the Subsidiary and to exit the legacy solar operations conducted through the Subsidiary, with immediate effect. On the same date, the Company’s management board, with the approval of the supervisory board, adopted a digital asset treasury strategy (the “Treasury Strategy”). Under the Treasury Strategy, the principal holding in the Company’s treasury reserve on its balance sheet is allocated to digital assets, principally Bitcoin(“Bitcoin” or “BTC”), by applying a covered-call yield strategy. In connection with the Treasury Strategy, on March 10, 2026, the Company entered into a 2002 ISDA Master Agreement, a related Schedule and a Credit Support Annex with Blockchain.com (BVI) II Limited (“Blockchain.com”), facilitating the Company to enter into derivative and/or hedging transactions to manage the risk associated with the Treasury Strategy.

As of March 31, 2026, management concluded that the Subsidiary met the criteria to be classified as held for sale and that the planned disposition (which was completed subsequent to quarter end on May 4, 2026, as further described under Note 16 (Subsequent Events)) represents a strategic shift that has had, or will have, a major effect on the Company’s operations and financial results. Accordingly, the results of operations of the Subsidiary have been presented as discontinued operations, and the related assets and liabilities have been presented as assets and liabilities of discontinued operations classified as held for sale, for all periods presented. Subsequent to March 31, 2026, on May 4, 2026, the Company sold and transferred 100% of the outstanding share capital of the Subsidiary to third-party purchasers. See Note 3 (Liquidity and Going Concern Analysis), Note 4 (Discontinued Operations and Assets and Liabilities Held for Sale), Note 5 (Digital Assets), Note 6 (Written Covered Bitcoin Call Options), Note 8 (Convertible Notes, Embedded Derivatives and Pre-Funded Warrants) and Note 16 (Subsequent Events) for additional information.

These unaudited condensed consolidated financial statements reflect all adjustments, including normal recurring adjustments, which, in the opinion of management, are necessary to present fairly the financial position, results of operations and cash flows for the periods presented in accordance with accounting principles generally accepted in the United States of America (“U.S. GAAP”).

On a consolidated basis, the Company’s operations during the three months ended March 31, 2026 and the three months ended March 31, 2025 are comprised of the parent company, Sono N.V., and the Subsidiary. All significant intercompany transactions and balances have been eliminated upon consolidation. Certain amounts in the prior period unaudited condensed consolidated financial statements have been reclassified to conform to the current period presentation, including the presentation of the Subsidiary as a discontinued operation. In addition, effective January 1, 2026, the Company changed its reporting currency from the euro to the U.S. dollar, and all prior-period financial information presented in these unaudited condensed consolidated financial statements has been recast into U.S. dollars as if the U.S. dollar had been the Company’s reporting currency since the earliest period presented. See Note 2 (Basis of Presentation, Consolidation and Summary of Significant Accounting Policies) for additional information regarding the change in reporting currency.