Document And Entity Information Statistical Measurement [Axis] Note To Financial Statement Details Textual Significant Accounting Policies Income tax expense Income Tax Expense (Benefit) Note 4 - Discontinued Operations and Assets and Liabilities Held for Sale 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 Material Terms of Trading Arrangement [Text Block] Note 8 - Convertible Notes, Embedded Derivatives and Pre-Funded Warrants 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 gain (loss), net Statistical Measurement [Domain] Note 5 - Digital Assets - Schedule of Digital Assets (Details) Note 6 - Written Covered Bitcoin Call Options - Schedule of Written Covered-call Derivatives (Details) Note 6 - Written Covered Bitcoin Call Options - Schedule of Written Covered-call Derivatives (Details) (Parentheticals) Accounts payable and accrued liabilities us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities Note 7 - Fair Value Measurements - Schedule of Instruments at Fair Value (Details) Note 7 - Fair Value Measurements - Schedule of Level 3 Derivatives (Details) 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) Note 10 - Leases - Schedule of Lease Cost (Details) Basis of Presentation and Significant Accounting Policies [Text Block] Business Description and Basis of Presentation [Text Block] Note 10 - Leases - Schedule of Operating Lease Liability Maturity (Details) Note 12 - Stockholders' Equity - Schedule of Stock (Details) Note 13 - Net Income (Loss) Per Share - Summary of Earnings Per Share (Details) Notes To Financial Statements Notes To Financial Statements [Abstract] Debt discount recognized at issuance The amount of debt discount recognized at the issuance date. Embedded conversion derivative liabilities recognized at issuance The amount of embedded conversion of derivative liabilities. Crypto Asset, Fair Value Remeasurement, Net The amount of net fair value remeasurement of crypto asset. us-gaap_IncreaseDecreaseInInterestPayableNet Accrued interest payable us-gaap_SharesOutstanding Balance (in shares) Balance (in shares) us-gaap_CryptoAssetNumberOfUnits Crypto Asset, Number of Units Balance, January 1, 2026, units Balance, June 30, 2026 (at 59,007.48 per Bitcoin) , units Liabilities of discontinued operations classified as held for sale, including lease liabilities Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Preferred Shares, par value €300.00 per share, 1,401 shares authorized, 1,401 and 1,401 shares issued and outstanding as of June 30, 2026 and December 31, 2025, respectively us-gaap_Liabilities Total Liabilities us-gaap_LiabilitiesAndStockholdersEquity Total Liabilities and Shareholders’ Equity Gain on change in fair value of embedded derivative liabilities 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_DisposalGroupIncludingDiscontinuedOperationInventory1 Inventories Lessee, Lease, Description [Table] Changes in operating assets and liabilities: Preferred shares, issued (in shares) Preferred Stock, Shares Issued (in shares) Preferred shares, outstanding (in shares) Preferred Stock, Shares Outstanding (in shares) Reclassification [Table] Preferred shares, authorized (in shares) Preferred Stock, Shares Authorized (in shares) Fair Value, by Balance Sheet Grouping [Table] Pre-Funded Warrant [Member] Represents the pre-funded warrants. Preferred Stock, Par or Stated Value Per Share (in EUR per Share) 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_EffectOfExchangeRateOnCashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations Effect of exchange-rate changes on cash us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsDisposalGroupIncludingDiscontinuedOperations Cash of discontinued operations included in assets classified as held for sale Cash of discontinued operations Cash of discontinued operations New Accounting Pronouncements, Policy [Policy Text Block] us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsIncludingDisposalGroupAndDiscontinuedOperations Total cash and cash equivalents including discontinued operations cash Concentration Risk, Credit Risk, Policy [Policy Text Block] Statement [Table] us-gaap_OperatingLeasePayments Operating Lease, Payments Prepaid taxes and VAT receivables Effect of exchange-rate changes and held-for-sale cash presentation on cash and cash equivalents Right-of-use asset obtained in exchange for operating lease liability us-gaap_GainLossOnSaleOfBusiness Loss on deconsolidation of subsidiary us-gaap_DerivativeLiabilities Derivative liability sev_PolicyTable Long-Term Debt, Type [Axis] us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue Lessee, Operating Lease, Liability, to be Paid us-gaap_OperatingLeaseWeightedAverageDiscountRatePercent Operating Lease, Weighted Average Discount Rate, Percent us-gaap_AccountsPayableAndAccruedLiabilitiesCurrentAndNoncurrent Accounts payable and accrued expenses us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths Lessee, Operating Lease, Liability, Remainder of Fiscal Year us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFive Lessee, Operating Lease, Liability, to be Paid, Year Five us-gaap_LesseeOperatingLeaseLiabilityPaymentsRemainderOfFiscalYear Lessee, Operating Lease, Liability, to be Paid, Remainder of Fiscal Year Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Measurement Frequency [Axis] us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree Lessee, Operating Lease, Liability, to be Paid, Year Three Commitments and Contingencies Disclosure [Text Block] us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo Lessee, Operating Lease, Liability, to be Paid, Year Two Statement [Line Items] Fair Value Hierarchy and NAV [Axis] us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour Lessee, Operating Lease, Liability, to be Paid, Year Four 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) Proceeds from issuance of convertible debentures Proceeds from Convertible Debt Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Ordinary Shares and High Voting Shares us-gaap_TaxesPayableCurrentAndNoncurrent VAT and other tax liabilities us-gaap_InterestPayableCurrentAndNoncurrent Accrued interest payable us-gaap_PolicyTextBlockAbstract Accounting Policies Net draws on convertible notes at fair value option us-gaap_DisclosureTextBlockAbstract Notes to Financial Statements us-gaap_TableTextBlock Notes Tables Proceeds from pre-funded warrants Proceeds from Issuance of Warrants us-gaap_ComprehensiveIncomeNetOfTax Comprehensive (loss) / income us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseIncludingExchangeRateEffectContinuingOperations Net increase (decrease) in cash and cash equivalents Accounting and auditing fees Subsequent Events [Text Block] us-gaap_LesseeOperatingLeaseLiabilityUndiscountedExcessAmount Lessee, Operating Lease, Liability, Undiscounted Excess Amount us-gaap_OperatingLeaseLiabilityNoncurrent Operating lease liability, non-current portion Lease liability Operating Lease, Liability Total operating lease liability Other accounts payable and accrued expenses us-gaap_OperatingLeaseLiabilityCurrent Operating lease liability, current portion Accrued interest payable Capitalization, Equity [Table] Crypto Asset [Domain] Crypto Asset [Axis] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Settlements, expirations and releases Change in fair value recognized in earnings, net Statement of Stockholders' Equity [Abstract] Statement of Comprehensive Income [Abstract] Class of Warrant or Right [Axis] Statement of Cash Flows [Abstract] Class of Warrant or Right [Domain] Convertible Debt [Member] us-gaap_ConvertibleNotesPayableCurrent Convertible notes payable, net of discount Other comprehensive income, foreign currency translation adjustment Total other comprehensive income (loss) Long-Term Debt, Type [Domain] Equity Components [Axis] us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherAssets Other disposal-group assets us-gaap_DisposalGroupIncludingDiscontinuedOperationOtherLiabilities Other disposal-group liabilities Equity Component [Domain] Offsetting Liabilities [Table] 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] Additional Paid-in Capital [Member] Retained Earnings [Member] Foreign Currency Transactions and Translations Policy [Policy Text Block] Subsequent Event [Table] Shareholders’ Equity Accounts Payable and Accrued Liabilities Disclosure [Text Block] Cumulative translation adjustment released on deconsolidation of subsidiary Cumulative Translation Adjustment, Net of Tax, Period Increase (Decrease) Change in fair value of debt and derivative instruments Substantial Doubt about Going Concern [Text Block] Fair Value Disclosures [Text Block] Fair Value, by Balance Sheet Grouping [Table Text Block] Current Liabilities Lease, Cost [Table Text Block] Other Commitments [Table] Lessee, Leases [Policy Text Block] us-gaap_CashProvidedByUsedInOperatingActivitiesDiscontinuedOperations Operating cash use of the disposal group, net us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerDilutedShare Discontinued operations, including deconsolidation (in dollars per share) Accumulated other comprehensive income (loss) Discontinued operations, including deconsolidation (in dollars per share) us-gaap_DiscontinuedOperationIncomeLossFromDiscontinuedOperationNetOfTaxPerBasicShare us-gaap_GeneralAndAdministrativeExpense General and administrative expenses us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest (Loss) / Income from continuing operations before income taxes Additional paid-in capital Debt Disclosure [Text Block] Use of Estimates, Policy [Policy Text Block] Lessee, Operating Leases [Text Block] 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 Debt Instrument, Name [Domain] Maturity us-gaap_DebtInstrumentInterestRateStatedPercentage Debt Instrument, Interest Rate, Stated Percentage Bitcoin [Member] Represents Bitcoin. Class of Stock [Domain] Issuance of Ordinary Shares in connection with December 2024 reverse share split (in shares) Schedule of Long-Term Debt Instruments [Table] Debt Instrument [Axis] Cash flows from operating activities Liabilities released on expiration or settlement Amount of derivative liabilities that were settled or expired. sev_DerivativeContractExpirationDate Derivative, Contract Expiration Date The expiration date for derivative contracts. Cash flows from investing activities us-gaap_NetCashProvidedByUsedInOperatingActivities Net cash used in operating activities Crypto Asset, Price Per Unit The price per unit of a crypto asset. Cash flows from financing activities Bitcoin delivered on calls exercised in the money, units Crypto asset units delivered from calls exercised in the money. us-gaap_NetCashProvidedByUsedInInvestingActivities Net cash used in investing activities Losses on calls exercised in the money - Bitcoin delivered Bitcoin delivered on calls exercised in the money Amount delivered on calls exercised in the money for crypto assets. sev_FundingProvidedByParent Cash funding provided by the parent Cash funding provided by parent company. us-gaap_NetCashProvidedByUsedInFinancingActivities Net cash provided by financing activities sev_OperatingLeaseSpotRate Operating Lease, Spot Rate The spot rate for an operating lease. sev_OperatingLeaseRemainingUndiscountedPayment Operating Lease, Remaining Undiscounted Payment The remaining undiscounted payment for operating leases. Non-cash interest - amortization of debt discount Amount of interest expense from the amortization of debt discount. Covered-call option income, net (within digital asset treasury loss, net) Amount of income (loss) for the net written covered-call derivatives. sev_OperatingLeaseRemainingUndiscountedMonthlyPayments Operating Lease, Remaining Undiscounted Monthly Payments The remaining number of undiscounted monthly payments for operating leases. sev_LesseeOperatingLeaseLiabilityToBePaidImputedInterestRemainderOfFiscalYear Lessee, Operating Lease, Liability, to be Paid, Imputed Interest, Remainder of Fiscal Year Amount of lessee's imputed interest for lease payment for operating lease having initial or remaining lease term in excess of one year to be paid in remainder of current fiscal year. Accounting Policies [Abstract] us-gaap_IncreaseDecreaseInPrepaidTaxes Prepaid expenses, VAT and other assets sev_LesseeOperatingLeaseLiabilityYearOne Lessee, Operating Lease, Liability, Year One Present value of lessee's discounted obligation for lease payments from operating lease to be paid in current fiscal year. sev_LesseeOperatingLeaseLiabilityYearTwo Lessee, Operating Lease, Liability, Year Two Present value of lessee's discounted obligation for lease payments from operating lease to be paid in second fiscal year. sev_LesseeOperatingLeaseLiabilityToBePaidImputedInterestYearFive Lessee, Operating Lease, Liability, to be Paid, Imputed Interest, Year Five Amount of lessee's imputed interest for lease payment for operating lease to be paid in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). sev_LesseeOperatingLeaseLiabilityRemainderOfFiscalYear Lessee, Operating Lease, Liability, Remainder of Fiscal Year Present value of lessee's discounted obligation for lease payments from operating lease to be paid in remainder of current fiscal year. sev_LesseeOperatingLeaseLiabilityToBePaidImputedInterestYearThree Lessee, Operating Lease, Liability, to be Paid, Imputed Interest, Year Three Amount of lessee's imputed interest for lease payment for operating lease to be paid in third fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). sev_LesseeOperatingLeaseLiabilityToBePaidImputedInterestYearFour Lessee, Operating Lease, Liability, to be Paid, Imputed Interest, Year Four Amount of lessee's imputed interest for lease payment for operating lease to be paid in fourth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). sev_LesseeOperatingLeaseLiabilityToBePaidImputedInterestYearOne Lessee, Operating Lease, Liability, to be Paid, Imputed Interest, Year One Amount of lessee's imputed interest for lease payment for operating lease to be paid in next fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). Digital Assets and Derivative Instruments [Policy Text Block] The accounting policy presenting the information on digital assets and derivative instruments. sev_LesseeOperatingLeaseLiabilityToBePaidImputedInterestYearTwo Lessee, Operating Lease, Liability, to be Paid, Imputed Interest, Year Two Amount of lessee's imputed interest for lease payment for operating lease to be paid in second fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach). us-gaap_IncomeLossFromContinuingOperationsPerDilutedShare Continuing operations (in dollars per share) Continuing operations (in dollars per share) us-gaap_IncomeLossFromContinuingOperationsPerBasicShare Income (loss) from continuing operations Measurement Input Type [Axis] sev_LesseeOperatingLeaseLiabilityYearFive Lessee, Operating Lease, Liability, Year Five Present value of lessee's discounted obligation for lease payments from operating lease to be paid in fifth fiscal year. Income Statement [Abstract] sev_LesseeOperatingLeaseLiabilityYearThree Lessee, Operating Lease, Liability, Year Three Present value of lessee's discounted obligation for lease payments from operating lease to be paid in three fiscal year. sev_LesseeOperatingLeaseLiabilityYearFour Lessee, Operating Lease, Liability, Year Four Present value of lessee's discounted obligation for lease payments from operating lease to be paid in fourth fiscal year. Purchases / acquisitions during period, units The number of crypto units purchased. Option premiums settled in Bitcoin, units The number of crypto units for the written-call premium. us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerDilutedShare Discontinued operations, including deconsolidation (in dollars per share) sev_DisposalGroupIncludingDiscontinuedOperationRightofUseAssets Right-of-use assets Amount classified as right-of-use assets attributable to disposal group held for sale or disposed of. Discontinued operations, including deconsolidation (in dollars per share) us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTaxPerBasicShare us-gaap_IncomeLossFromDiscontinuedOperationsNetOfTax 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. sev_OperatingLeaseRemainingLeaseTerm Operating Lease, Remaining Lease Term (Month) Remaining lease term of operating lease. 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. Option premiums settled in Bitcoin The value of the written-call crypto units. Net (loss) / income Net (Loss) / Income Net Income (Loss) Attributable to Parent Coupon interest expense The amount of expense for the coupon interest. Measurement Input, Price Volatility [Member] Gross convertible notes payable The gross amount of convertible debt. Written covered-call liability, June 30, 2026 (contract expiring 7/3/26, strike 63,000) The value of the written-call derivative liability. Measurement Input, Share Price [Member] Measurement Input Type [Domain] Non-cash items settled through balance sheet accounts, net Measurement Input, Risk Free Interest Rate [Member] us-gaap_DerivativeLiabilityMeasurementInput Derivative Liability, Measurement Input Convertible Debt [Table Text Block] Income Tax Disclosure [Text Block] Accounting Standards Update and Change in Accounting Principle [Table] Income Tax, Policy [Policy Text Block] us-gaap_DerivativePriceRiskOptionStrikePrice Derivative, Price Risk Option Strike Price (in USD per Per Share) Change in Reporting Entity [Table] Related Party Transaction [Table] Related Party Transactions Disclosure [Text Block] Issuance of pre-funded warrant Adjustments to Additional Paid in Capital, Warrant Issued Digital asset treasury loss, net Fair Value Hierarchy and NAV [Domain] 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 (expenses), net Assets of discontinued operations classified as held for sale, including right-of-use assets Digital asset treasury loss, net (non-cash) us-gaap_CryptoAssetFairValue Bitcoin digital assets Balance, January 1, 2026 Balance, June 30, 2026 (at 59,007.48 per Bitcoin) Crypto Asset [Text Block] us-gaap_PaymentForAcquisitionCryptoAsset Purchases of digital assets Variable conversion price 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 from discontinued operations Impairment of Discontinued Operations 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. 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. dei_DocumentType Document Type Document Information [Line Items] Document Quarterly Report Digital assets / Bitcoin treasury Crypto Asset, Fair Value, Current sev_DisposalGroupIncludingDiscontinuedOperationLeaseLiabilities Other disposal-group liabilities Amount classified as lease liabilities attributable to disposal group held for sale or disposed of. us-gaap_LesseeOperatingLeaseTermOfContract Lessee, Operating Lease, Term of Contract us-gaap_IncreaseDecreaseInOtherCurrentLiabilities Cash funding of discontinued operations Gain on change in fair value of embedded derivatives Amount of gain (loss) from the fair value adjustments of embedded derivatives. us-gaap_OperatingLeaseWeightedAverageRemainingLeaseTerm1 Weighted-average remaining lease term (in years) (Year) Document Information [Table] Net (loss) / income per share to common shareholders - diluted: dei_EntityInteractiveDataCurrent Entity Interactive Data Current Document Transition Report Weighted average shares outstanding - diluted (in shares) Diluted (in shares) Net income per share to common shareholders - basic: Dilutive effect of potential ordinary shares (in shares) Weighted average shares outstanding - basic (in shares) Basic (in shares) Derivative Instrument [Axis] 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] Unamortized debt discount Document Fiscal Period Focus Document Fiscal Year Focus Amendment Flag Common Stock [Member] dei_DocumentPeriodEndDate Document Period End Date Variable lease cost Legal Entity [Axis] Operating lease cost Operating Lease, Cost Short-term lease cost us-gaap_LeaseCost Total lease cost 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. Noncash Investing and Financing Items [Abstract] Written-call liabilities recognized at fair value Entity [Domain] Entity Central Index Key dei_EntityRegistrantName Entity Registrant Name Foreign currency translation adjustment dei_EntityCurrentReportingStatus Entity Current Reporting Status Entity Incorporation, State or Country Code Current Fiscal Year End Date Call Option [Member] dei_EntityExTransitionPeriod Entity Ex Transition Period Fair Value Measurement, Policy [Policy Text Block] Entity Filer Category dei_EntityShellCompany Entity Shell Company Entity Emerging Growth Company Entity Small Business us-gaap_OperatingIncomeLoss Loss from operations Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Sono Motors GmbH [Member] Represents Sono Motors GmbH. us-gaap_InterestExpenseDebt Total interest expense dei_EntityAddressStateOrProvince Entity Address, State or Province dei_EntityAddressCityOrTown Entity Address, City or Town Derivative liabilities, written covered Bitcoin call options Derivative Liability, Current Interest expense, including amortization of debt discount Accumulated deficit Retained Earnings (Accumulated Deficit) dei_EntityAddressAddressLine1 Entity Address, Address Line One dei_CityAreaCode City Area Code Crypto Asset, Activity [Table Text Block] dei_LocalPhoneNumber Local Phone Number dei_EntityAddressPostalZipCode Entity Address, Postal Zip Code Advance to former subsidiary written off at deconsolidation Preferred Stock [Member] Title of 12(b) Security Security Exchange Name Trading Symbol Fixed conversion price (in dollars per share) Accounts payable and accrued expenses Total accounts payable and accrued expenses Class of Stock [Axis] dei_EntityCommonStockSharesOutstanding Entity Common Stock, Shares Outstanding (in shares) Earnings Per Share [Text Block] Other comprehensive income, including 1,223 of cumulative translation adjustment released to net loss on deconsolidation sev_DebtInstrumentDefaultRate Debt Instrument, Default Rate Represents the interest rate of a debt instrument in the event of default. Payment of withholding tax payable Common Stock, Par or Stated Value Per Share (in EUR per Share) Common Stock, Par or Stated Value Per Share (in EUR per Share) Basis of Accounting, Policy [Policy Text Block] Derivative Contract [Domain] us-gaap_Assets Total Assets Reclassification of cumulative translation adjustment to net loss on deconsolidation of subsidiary Cash Cash and Cash Equivalent us-gaap_CashDivestedFromDeconsolidation Cash of the disposal group derecognized at deconsolidation, April 30, 2026 Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Loss from discontinued operations, net of tax, including loss on deconsolidation us-gaap_IncomeLossFromContinuingOperationsIncludingPortionAttributableToNoncontrollingInterest (Loss) / Income from continuing operations Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest Net income (loss) per share - diluted (in dollars per share) Net (loss)/income per share - diluted (in dollars per share) Disposal Group Name [Domain] Supplemental disclosure: cash paid for interest Federal Income Tax Note [Table] Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table Text Block] Loss on deconsolidation of subsidiary Loss of the disposal group, including operating results, held-for-sale measurement and translation Loss from discontinued operations, net of tax Disposal Group Name [Axis] Schedule of Stock by Class [Table Text Block] us-gaap_StockholdersEquity Total Shareholders’ Equity Balance Balance Right-of-use asset Operating Lease, Right-of-Use Asset ecd_Rule10b51ArrTrmntdFlag Rule 10b5-1 Arrangement Terminated [Flag] Revenue ecd_Rule10b51ArrAdoptedFlag Rule 10b5-1 Arrangement Adopted [Flag] Commitments and Contingencies