Document And Entity Information Debt Instrument, Name [Domain] Statistical Measurement [Axis] Note To Financial Statement Details Textual Significant Accounting Policies Income tax expense Income Tax Expense (Benefit) Maturity Note 4 - Discontinued Operations and Assets and Liabilities Held for Sale us-gaap_GainLossOnSaleOfDerivatives Realized expiration/settlement gain us-gaap_DebtInstrumentInterestRateStatedPercentage Debt Instrument, Interest Rate, Stated Percentage ecd_NonRule10b51ArrTrmntdFlag Non-Rule 10b5-1 Arrangement Terminated [Flag] Note 5 - Digital Assets ecd_NonRule10b51ArrAdoptedFlag Non-Rule 10b5-1 Arrangement Adopted [Flag] Note 6 - Written Covered Bitcoin Call Options Trading Arrangements, by Individual [Table] Note 7 - Fair Value Measurements Bitcoin [Member] Represents Bitcoin. Material Terms of Trading Arrangement [Text Block] Note 8 - Convertible Notes, Embedded Derivatives and Pre-Funded Warrants Class of Stock [Domain] Note 9 - Accounts Payable, Accrued Expenses and Other Liabilities Note 10 - Leases Note 12 - Stockholders' Equity Note 13 - Net Income (Loss) Per Share Minimum [Member] Note 4 - Discontinued Operations and Assets and Liabilities Held for Sale - Schedule of Discontinued Operations (Details) Foreign currency loss, net Statistical Measurement [Domain] Issuance of Ordinary Shares in connection with December 2024 reverse share split (in shares) us-gaap_NetCashProvidedByUsedInDiscontinuedOperations Net increase (decrease) in cash of discontinued operations Schedule of Long-Term Debt Instruments [Table] Note 5 - Digital Assets - Schedule of Digital Assets (Details) Note 6 - Written Covered Bitcoin Call Options - Schedule of Written Covered-call Derivatives (Details) Debt Instrument [Axis] Note 7 - Fair Value Measurements - Schedule of Instruments at Fair Value (Details) Note 7 - Fair Value Measurements - Schedule of Level 3 Derivatives (Details) Accounts payable and accrued expenses us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities Note 8 - Convertible Notes, Embedded Derivatives and Pre-Funded Warrants - Schedule of Convertible Debt (Details) Note 8 - Convertible Notes, Embedded Derivatives and Pre-Funded Warrants - Schedule of Debt and Other Financing Activities (Details) Note 9 - Accounts Payable, Accured Expenses and Other Liabilities - Schedule of Accounts Payable and Accrued Expenses (Details) Cash flows from operating activities us-gaap_UnrealizedGainLossOnDerivatives Gain on change in fair value of embedded conversion derivative liabilities Open written-call fair-value loss Note 10 - Leases - Schedule of Disposal of Lease (Details) Cash flows from investing activities Note 12 - Stockholders' Equity - Schedule of Stock (Details) us-gaap_NetCashProvidedByUsedInOperatingActivities Net cash used in operating activities Note 13 - Net Income (Loss) Per Share - Summary of Earnings Per Share (Details) Cash flows from financing activities Basis of Presentation and Significant Accounting Policies [Text Block] Notes To Financial Statements Business Description and Basis of Presentation [Text Block] us-gaap_NetCashProvidedByUsedInInvestingActivities Net cash used in investing activities Notes To Financial Statements [Abstract] us-gaap_NetCashProvidedByUsedInFinancingActivities Net cash provided by financing activities sev_InterestExpenseAmortizationOfDebtDiscount Interest expense, including amortization of debt discount Amount of interest expense from the amortization of debt discount. Bitcoin received as written-call premium Value of digital assets received as written-call premiums. Derivative liability initial recognition Value for the initial recognition of the derivative liability. Pre-funded warrant APIC allocation Amount of allocation recognized in additional paid in capital for the warrants. Accounting Policies [Abstract] sev_DebtDiscountAmortizationNoncashComponents Debt discount amortization noncash component Amount of noncash debt discount amortization. us-gaap_IncreaseDecreaseInPrepaidTaxes Prepaid taxes and VAT receivables Debt discount from derivative bifurcation The value of the debt discount for the derivative bifurcation. Digital Assets and Derivative Instruments [Policy Text Block] The accounting policy presenting the information on digital assets and derivative instruments. us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare Continuing operations (in dollars per share) Subsidiary [Member] Represents the subsidiary. us-gaap_IncomeLossFromContinuingOperationsPerBasicShare Continuing operations (in dollars per share) Income (loss) from continuing operations sev_DisposalGroupIncludingDiscontinuedOperationSellingAndDistributionExpense Selling and distribution expenses Amount of selling and distribution expense attributable to disposal group, including, but not limited to, discontinued operation. Measurement Input Type [Axis] Income Statement [Abstract] sev_DisposalGroupIncludingDiscontinuedOperationResearchAndDevelopment Research and development expenses Amount of research and development expense attributable to disposal group, including, but not limited to, discontinued operation. us-gaap_SharesOutstanding Balance (in shares) Balance (in shares) Purchases / acquisitions during period, units The number of crypto units purchased. Written-call premium BTC received by period-end, units The number of crypto units for the written-call premium. us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationBeforeIncomeTax Loss from discontinued operations before income taxes sev_DisposalGroupIncludingDiscontinuedOperationLeaseAndOtherLiabilities Lease and other disposal-group liabilities Amount classified as lease and other liabilities attributable to disposal group held for sale or disposed of, expected to be disposed of. us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare Discontinued operations (in dollars per share) sev_DisposalGroupIncludingDiscontinuedOperationRightofUseAssets Disposal Group, Including Discontinued Operation, Right-of-Use Assets Amount classified as right-of-use assets attributable to disposal group held for sale or disposed of. us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare Discontinued operations (in dollars per share) Loss from discontinued operations, net of tax Measurement Input, Expected Term [Member] Schedule of Written Covered-call Derivatives [Table Text Block] The tabular disclosure presenting the information on the written covered-call derivatives. Initial recognition / issuances Fair value amount of the liabilities at their initial recognition. Written Covered Crypto Assets Disclosure [Text Block] The disclosure presenting the information on the written covered crypto assets. Embedded Conversion Features [Member] Represents the embedded derivative conversion features. Balance, units Crypto Asset, Number of Units Balance, units Balance, units Written-call premium BTC received by period-end, amount The value of the written-call crypto units. Liabilities of discontinued operations classified as held for sale, including lease liabilities Net income (loss) Net income / (loss) Net Income (Loss) Attributable to Parent Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Coupon interest expense The amount of expense for the coupon interest. Preferred Shares, par value €300.00 per share, 1,401 shares authorized, 1,401 and 1,401 shares issued and outstanding as of March 31, 2026 and December 31, 2025, respectively Measurement Input, Price Volatility [Member] us-gaap_Liabilities Total Liabilities Gross convertible notes payable The gross amount of convertible debt. sev_DerivativeLiabilitiesInitialRecognition Initial liabilities recognized for premiums received by period-end The value of the derivative liability initial recognition. us-gaap_LiabilitiesAndStockholdersEquity Total Liabilities and Shareholders’ Equity us-gaap_DiscontinuedOperationTaxEffectOfDiscontinuedOperation Income tax expense Carrying value before fair value mark / cost basis The cost of the crypto asset before the fair value mark. Gain on change in fair value of embedded derivative liabilities Measurement Input, Share Price [Member] sev_OwnershipSharesPricePerShare Ownership Shares, Price Per Share (in EUR per Share) The price per share for the shares owned in the investment. Measurement Input Type [Domain] us-gaap_LiabilitiesOfDisposalGroupIncludingDiscontinuedOperation Total liabilities of discontinued operation classified as held for sale Liabilities of discontinued operations classified as held for sale, including lease liabilities us-gaap_IncreaseDecreaseInPrepaidDeferredExpenseAndOtherAssets Prepaid expenses and other current assets Measurement Input, Risk Free Interest Rate [Member] sev_OwnershipPercentageTransferred Ownership Percentage Transferred Represents the amount of ownership that was transferred. us-gaap_DerivativeLiabilityMeasurementInput Derivative Liability, Measurement Input Condensed Balance Sheet Statement [Table] Convertible Debt [Table Text Block] Subsequent Event [Member] Lessee, Lease, Description [Table] Income Tax Disclosure [Text Block] Changes in operating assets and liabilities: Preferred shares, issued (in shares) Preferred Stock, Shares Issued (in shares) Accounting Standards Update and Change in Accounting Principle [Table] Preferred shares, outstanding (in shares) Preferred Stock, Shares Outstanding (in shares) us-gaap_IncreaseDecreaseInOperatingCapital Total changes in operating assets and liabilities Preferred shares, authorized (in shares) Preferred Stock, Shares Authorized (in shares) us-gaap_DisposalGroupIncludingDiscontinuedOperationGeneralAndAdministrativeExpense General and administrative expenses sev_OwnershipPercentage Ownership Percentage The percentage of ownership. Fair Value, by Balance Sheet Grouping [Table] Pre-Funded Warrant [Member] Represents the pre-funded warrants. us-gaap_PreferredStockParOrStatedValuePerShare Preferred Stock, Par or Stated Value Per Share (in EUR per Share) us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue Balance Balance us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents Cash and cash equivalents presented in continuing current assets Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations Effect of exchange-rate changes on cash of discontinued operations us-gaap_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations Effect of exchange-rate changes and held-for-sale cash presentation on cash and cash equivalents Change in Reporting Entity [Table] Related Party Transaction [Table] Dispositions / physical settlements, units The number of crypto unites for the disposition of assets. Related Party Transactions Disclosure [Text Block] sev_CryptoAssetValueBeforeFairValue Balance, amount The value of crypto assets before fair value. us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations Cash of discontinued operations included in assets classified as held for sale Cash of discontinued operations, beginning of period Cash of discontinued operations, end of period New Accounting Pronouncements, Policy [Policy Text Block] sev_DisposalGroupIncludingDiscontinuedOperationOtherOperatingIncomeLoss Other operating income, net and rounding Amount of other operating income (loss) attributable to disposal group, including, but not limited to, discontinued operation. us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations Total cash and cash equivalents including discontinued operations cash Issuance of pre-funded warrants / allocated APIC Adjustments to Additional Paid in Capital, Warrant Issued Concentration Risk, Credit Risk, Policy [Policy Text Block] Digital asset treasury loss, net Statement [Table] Reclassification, Comparability Adjustment [Policy Text Block] sev_InvestmentOwnedBalanceSharesSold Investment Owned, Balance, Shares (in shares) Number of shares of investment owned that have been sold. Fair Value Hierarchy and NAV [Domain] Prepaid taxes and VAT receivables Effect of exchange-rate changes and held-for-sale cash presentation on cash and cash equivalents Measurement Frequency [Domain] us-gaap_AssetsOfDisposalGroupIncludingDiscontinuedOperation Total assets of discontinued operations classified as held for sale Other Income (Expenses) Statement of Financial Position [Abstract] us-gaap_NonoperatingIncomeExpense Total other income, net Assets of discontinued operations classified as held for sale, including right-of-use assets us-gaap_DerivativeLiabilities Ending written-call derivative liability Dispositions / physical settlements, amount ASC 350-60 fair value remeasurement gain/(loss) Change in fair value of digital assets Balance, amount Bitcoin digital assets Balance, amount Crypto Asset [Text Block] Long-Term Debt, Type [Axis] us-gaap_PaymentForAcquisitionCryptoAsset Purchase of digital assets / Bitcoin treasury Variable conversion price Debt Instrument, Convertible, Conversion Price, Variable, Percentage of VWAP Represents the percentage of VWAP that accounts for a varible conversion price on a debt instrument. January Debenture [Member] Relating to the January debenture. Bitcoin of Written Premiums [Member] Relating to Bitcoin of written premiums. sev_CryptoAssetSpotPrice Crypto Asset, Spot Price Represents the spot price of a crypto asset. Q1 2026 Debentures [Member] Relating to Q1 2026 Debentures. Bitcoin Collateral Deposit [Member] Relating to Bitcoin collateral deposit. Fair Value, Recurring [Member] Loss on classification as held for sale / impairment of discontinued operation Impairment of Discontinued Operations Valuation allowance / impairment recognized on classification as held for sale Represents the amount of impairment on discontinued operations. Purchases / acquisitions during period, amount High Voting Shares [Member] Represents high voting shares. Crypto Asset, Activity [Table] Legal fees Represents the amount of legal fess expensed but not paid classified as current. April 2026 Debenture [Member] Relating to the April 2026 debenture. sev_PolicyTable Ordinary Shares [Member] Represents ordinary shares. us-gaap_ConvertibleDebt Convertible Debt February Debenture [Member] Relating to the February debenture. March Debenture [Member] Relating to the March debenture. Weighted-average discount rate Operating Lease, Weighted Average Discount Rate, Percent dei_DocumentType Document Type Day-one loss on derivative liability Amount of initial loss recorded on the derivative liability. us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent Accounts payable and accrued expenses Document Information [Line Items] Document Quarterly Report Digital assets / Bitcoin treasury Crypto Asset, Fair Value, Current sev_DisposalGroupIncludingDiscontinuedOperationLeaseLiabilities Lease liabilities Amount classified as lease liabilities attributable to disposal group held for sale or disposed of. us-gaap_IncreaseDecreaseInOtherCurrentLiabilities Other operating assets and liabilities, including discontinued operations Gain on change in fair value of embedded derivatives Amount of gain (loss) from the fair value adjustments of embedded derivatives. Weighted-average lease term used in measurement (months) (Month) Operating Lease, Weighted Average Remaining Lease Term Document Information [Table] Net income per share to common shareholders - diluted: dei_EntityInteractiveDataCurrent Entity Interactive Data Current Measurement Frequency [Axis] Document Transition Report Commitments and Contingencies Disclosure [Text Block] Diluted (in shares) us-gaap_DepreciationAndAmortizationDiscontinuedOperations Depreciation and amortization included in discontinued operations Statement [Line Items] Net income per share to common shareholders - basic: Fair Value Hierarchy and NAV [Axis] Common, shares issued (in shares) Common Stock, Shares, Issued (in shares) Common, shares outstanding (in shares) Common Stock, Shares, Outstanding (in shares) Common, shares authorized (in shares) Common Stock, Shares Authorized (in shares) Dilutive effect of potential ordinary shares (in shares) Basic (in shares) sev_ForeignCurrencyAndOtherNoncashIncomeExpense Foreign currency and other noncash items Amount foreign currency and income (expense) included in net income that results in no cash inflow (outflow), classified as other. Proceeds from convertible debentures / debt financing Proceeds from Convertible Debt Derivative Instrument [Axis] Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Net income (loss) per share - basic (in dollars per share) Net (loss)/income per share - basic (in dollars per share) Earnings Per Share, Basic, by Common Class, Including Two-Class Method [Table] Ordinary Shares and High Voting Shares Effective Income Tax Rate Reconciliation [Table] us-gaap_TaxesPayableCurrentAndNoncurrent VAT and other tax liabilities us-gaap_InterestPayableCurrentAndNoncurrent Accrued interest payable us-gaap_PolicyTextBlockAbstract Accounting Policies Unamortized debt discount us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements us-gaap_TableTextBlock Notes Tables Document Fiscal Period Focus Proceeds from pre-funded warrants Proceeds from Issuance of Warrants Document Fiscal Year Focus us-gaap_ComprehensiveIncomeNetOfTax Comprehensive income (loss) Amendment Flag Common Stock [Member] us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContinuingOperations Net decrease in cash and cash equivalents Accounting and auditing fees Subsequent Events [Text Block] dei_DocumentPeriodEndDate Document Period End Date Legal Entity [Axis] dei_EntityFileNumber Entity File Number Entity Tax Identification Number Prepaid expenses and other current assets Amount of asset related to consideration paid in advance for costs that provide economic benefits in future periods, and amount of other assets that are expected to be realized or consumed within one year or the normal operating cycle, if longer. It doesn't include prepaid taxes. Supplemental disclosure of noncash financing and investing activities Other accounts payable and accrued expenses Entity [Domain] Entity Central Index Key dei_EntityRegistrantName Entity Registrant Name Accrued interest payable Foreign currency translation adjustment dei_EntityCurrentReportingStatus Entity Current Reporting Status Entity Incorporation, State or Country Code Property and equipment / other investing activity of discontinued operations Current Fiscal Year End Date Call Option [Member] dei_EntityExTransitionPeriod Entity Ex Transition Period Fair Value Measurement, Policy [Policy Text Block] Entity Filer Category Crypto Asset [Domain] dei_EntityShellCompany Entity Shell Company Gain on change in fair value of convertible notes payable carried at fair value Gain on change in fair value of convertible notes payable carried at fair value Amount of expense (income) related to adjustment to fair value of convertible debt liability. Entity Emerging Growth Company Entity Small Business Crypto Asset [Axis] us-gaap_OperatingIncomeLoss Loss from continuing operations Operating Income (Loss) Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Settlements / expirations / conversions Sono Motors GmbH [Member] Represents Sono Motors GmbH. Transfers into or out of Level 3 Change in fair value recognized in earnings, net Total interest expense dei_EntityAddressStateOrProvince Entity Address, State or Province Loss Contingencies [Table] Statement of Stockholders' Equity [Abstract] dei_EntityAddressCityOrTown Entity Address, City or Town Derivative liabilities Derivative Liability, Current Interest expense, including amortization of debt discount Statement of Comprehensive Income [Abstract] Accumulated deficit Retained Earnings (Accumulated Deficit) dei_EntityAddressAddressLine1 Entity Address, Address Line One Class of Warrant or Right [Axis] Statement of Cash Flows [Abstract] Class of Warrant or Right [Domain] dei_CityAreaCode City Area Code Crypto Asset, Activity [Table Text Block] dei_LocalPhoneNumber Local Phone Number dei_EntityAddressPostalZipCode Entity Address, Postal Zip Code Derivative [Table] Convertible Debt [Member] Other comprehensive income (loss) / translation adjustment Total other comprehensive income (loss) Preferred Stock [Member] Long-Term Debt, Type [Domain] Title of 12(b) Security Equity Components [Axis] Security Exchange Name Trading Symbol Fixed conversion price (in dollars per share) Debt Instrument, Convertible, Conversion Price us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets Other disposal-group assets Accounts payable and accrued expenses Total accounts payable and accrued expenses Class of Stock [Axis] us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherLiabilities Other disposal-group liabilities Equity Component [Domain] Fair Value, Inputs, Level 2 [Member] Fair Value, Inputs, Level 3 [Member] AOCI Attributable to Parent [Member] Fair Value, Inputs, Level 1 [Member] Equity [Text Block] dei_EntityCommonStockSharesOutstanding Entity Common Stock, Shares Outstanding (in shares) Additional Paid-in Capital [Member] Retained Earnings [Member] Earnings Per Share [Text Block] Foreign Currency Transactions and Translations Policy [Policy Text Block] Subsequent Event Type [Domain] Subsequent Event [Table] Subsequent Event Type [Axis] sev_DebtInstrumentDefaultRate Debt Instrument, Default Rate Represents the interest rate of a debt instrument in the event of default. us-gaap_CommonStockParOrStatedValuePerShare Common Stock, Par or Stated Value Per Share (in EUR per Share) Basis of Accounting, Policy [Policy Text Block] Shareholders’ Equity Derivative Contract [Domain] us-gaap_Assets Total Assets Cash Cash and Cash Equivalent Accounts Payable and Accrued Liabilities Disclosure [Text Block] us-gaap_GainLossOnDerivativeInstrumentsNetPretax Net written covered-call derivative income/loss Net written-call income Substantial Doubt about Going Concern [Text Block] Fair Value Disclosures [Text Block] Fair Value, by Balance Sheet Grouping [Table Text Block] Supplemental disclosure of cash flow information Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Current Liabilities Income (loss) from discontinued operations, net of tax Loss from discontinued operations, net of tax us-gaap_NotesReceivableGross Investment Owned, Balance, Principal Amount us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest Income (loss) from continuing operations Net income (loss) per share - diluted (in dollars per share) Net (loss)/income per share - diluted (in dollars per share) us-gaap_DisposalGroupIncludingDiscontinuedOperationOperatingIncomeLoss Loss from operations of discontinued operations Depreciation and amortization us-gaap_DisposalGroupIncludingDiscontinuedOperationCostsOfGoodsSold Cost of revenue / cost of sales Lease, Cost [Table Text Block] Disposal Group Name [Domain] Interim Period, Costs Not Allocable [Table] us-gaap_DisposalGroupIncludingDiscontinuedOperationGrossProfitLoss Gross profit Cash paid for interest us-gaap_DisposalGroupIncludingDiscontinuedOperationForeignCurrencyTranslationGainsLosses Foreign currency loss, net Lessee, Leases [Policy Text Block] us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations Net cash provided by (used in) operating activities of discontinued operations us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare Discontinued operations (in dollars per share) Accumulated other comprehensive income (loss) us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare Discontinued operations (in dollars per share) us-gaap_DisposalGroupIncludingDiscontinuedOperationRevenue Revenue Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table Text Block] Disposal Group Name [Axis] us-gaap_GeneralAndAdministrativeExpense General and administrative expenses us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest Income (loss) from continuing operations before income taxes Additional paid-in capital Schedule of Stock by Class [Table Text Block] us-gaap_StockholdersEquity Total Shareholders’ Equity Balance Balance Debt Disclosure [Text Block] Use of Estimates, Policy [Policy Text Block] Lessee, Operating Leases [Text Block] Stock, Class of Stock [Table] Principal amount Debt Instrument, Face Amount Current Assets Schedule of Debt [Table Text Block] Convertible notes payable, net of discount Amount of convertible debt classified as current, net of discounts. Issue date Fair Value, Recurring and Nonrecurring [Table] ecd_Rule10b51ArrTrmntdFlag Rule 10b5-1 Arrangement Terminated [Flag] ecd_Rule10b51ArrAdoptedFlag Rule 10b5-1 Arrangement Adopted [Flag] Franchisor, Ownership [Table]