Note 14 - Commitments and Contingencies	6 Months Ended
Jun. 30, 2026
Notes to Financial Statements
Commitments and Contingencies Disclosure [Text Block]	14. Commitments and Contingencies From time to time, the Company may be involved in claims and proceedings arising in the ordinary course of business. The Company records a liability for loss contingencies when a loss is probable and reasonably estimable. Management is not currently aware of any matter that it believes would have a material adverse effect on the Company’s condensed consolidated financial statements, except as otherwise disclosed in this Quarterly Report. The Company’s commitments and contingencies include matters associated with the exit from Sono Motors GmbH, lease-related obligations included in the discontinued operations disposal group, public-company obligations, financing arrangements and the Treasury Strategy. Exit from Sono Motors GmbH. Matters associated with the May 4, 2026 sale of Sono Motors GmbH, including residual obligations and indemnification matters arising under the sale and purchase agreement. See Note 4 (Discontinued Operations and Assets and Liabilities Held for Sale) for additional information. Munich Lease Obligations. Subsequent to the May 4, 2026 sale of Sono Motors GmbH, the Company remains the lessee under the lease for the Munich premises formerly used by Sono Motors GmbH. In June 2026, preliminary insolvency proceedings were opened with respect to Sono Motors GmbH. As a result, the contemplated transfer of the Munich lease to the new owners of Sono Motors GmbH has not been completed, and the Company continues to be obligated under the lease, which has a remaining term through April 30, 2031 and aggregate undiscounted future payments of approximately $949 thousand. The Company is monitoring the status of the insolvency proceedings and their potential impact on the Company's lease obligations. See Note 10 (Leases) for the maturity analysis of the Munich lease liability. Public-Company Obligations. Matters associated with the Company's ongoing public-company reporting obligations, including obligations and costs related to the proposed Redomiciliation Transaction described in Note 16 (Subsequent Events). Financing Arrangements. Matters associated with the Company's convertible debentures issued to Yorkville during 2026, including the debentures' maturity in 2027 and potential obligations upon conversion or at maturity. See Note 8 (Convertible Notes, Embedded Derivatives and Pre-Funded Warrants) and Note 15 (Related Party Transactions) for additional information. Treasury Strategy. Matters associated with the Company's Bitcoin collateral obligations under the ISDA Master Agreement and Credit Support Annex with Blockchain.com, and risks arising from written covered Bitcoin call options. See Note 2 (Basis of Presentation), Note 3 (Liquidity and Going Concern Analysis), Note 5 (Digital Assets) and Note 6 (Written Covered Bitcoin Call Options) for additional information.

Note 14 - Commitments and Contingencies

6 Months Ended

Jun. 30, 2026

Commitments and Contingencies Disclosure [Text Block]

14. Commitments and Contingencies

From time to time, the Company may be involved in claims and proceedings arising in the ordinary course of business. The Company records a liability for loss contingencies when a loss is probable and reasonably estimable. Management is not currently aware of any matter that it believes would have a material adverse effect on the Company’s condensed consolidated financial statements, except as otherwise disclosed in this Quarterly Report.

The Company’s commitments and contingencies include matters associated with the exit from Sono Motors GmbH, lease-related obligations included in the discontinued operations disposal group, public-company obligations, financing arrangements and the Treasury Strategy.

Exit from Sono Motors GmbH. Matters associated with the May 4, 2026 sale of Sono Motors GmbH, including residual obligations and indemnification matters arising under the sale and purchase agreement. See Note 4 (Discontinued Operations and Assets and Liabilities Held for Sale) for additional information.

Munich Lease Obligations. Subsequent to the May 4, 2026 sale of Sono Motors GmbH, the Company remains the lessee under the lease for the Munich premises formerly used by Sono Motors GmbH. In June 2026, preliminary insolvency proceedings were opened with respect to Sono Motors GmbH. As a result, the contemplated transfer of the Munich lease to the new owners of Sono Motors GmbH has not been completed, and the Company continues to be obligated under the lease, which has a remaining term through April 30, 2031 and aggregate undiscounted future payments of approximately $949 thousand. The Company is monitoring the status of the insolvency proceedings and their potential impact on the Company's lease obligations. See Note 10 (Leases) for the maturity analysis of the Munich lease liability.

Public-Company Obligations. Matters associated with the Company's ongoing public-company reporting obligations, including obligations and costs related to the proposed Redomiciliation Transaction described in Note 16 (Subsequent Events).

Financing Arrangements. Matters associated with the Company's convertible debentures issued to Yorkville during 2026, including the debentures' maturity in 2027 and potential obligations upon conversion or at maturity. See Note 8 (Convertible Notes, Embedded Derivatives and Pre-Funded Warrants) and Note 15 (Related Party Transactions) for additional information.

Treasury Strategy. Matters associated with the Company's Bitcoin collateral obligations under the ISDA Master Agreement and Credit Support Annex with Blockchain.com, and risks arising from written covered Bitcoin call options. See Note 2 (Basis of Presentation), Note 3 (Liquidity and Going Concern Analysis), Note 5 (Digital Assets) and Note 6 (Written Covered Bitcoin Call Options) for additional information.