Net loss per share attributable to ordinary shareholders: Net Loss Per Share [Abstract] Basic net loss per share Net loss per share - basic (in Dollars per share) Earnings Per Share, Basic Diluted net loss per share Net loss per share - diluted (in Dollars per share) Earnings Per Share, Diluted Net loss Net loss Net loss Numerator: Net Income (Loss) Attributable to Parent [Abstract] Schedule of Basic and Diluted Net Income (Loss) Per Share [Abstract] Net Income (Loss) Available to Common Stockholders, Basic [Abstract] Weighted-average ordinary shares outstanding - diluted (in Shares) Weighted Average Number of Shares Outstanding, Diluted Denominator: Weighted Average Number of Shares Outstanding, Diluted [Abstract] Weighted-average ordinary shares outstanding - basic Weighted-average ordinary shares outstanding - basic (in Shares) Weighted Average Number of Shares Outstanding, Basic Segment Information [Abstract] Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Segment Reporting, CODM, Individual Title and Position or Group Name [Extensible Enumeration] Segment description Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description Amendment Flag City Area Code Cover [Abstract] Current Fiscal Year End Date Document Fiscal Period Focus Document Fiscal Year Focus Document Information [Line Items] Document Information [Table] Document Period End Date Document Quarterly Report Document Transition Report Document Type Entity Listings [Table] Entity Listings [Line Items] Entity Phone Fax Numbers [Line Items] Accrued expenses and other current liabilities Total accrued expenses and other current liabilities Accounts Payable and Other Accrued Liabilities, Current Entity Incorporation, State or Country Code Entity Emerging Growth Company Entity Ex Transition Period Entity File Number Security Exchange Name Entity Common Stock, Shares Outstanding Entity Central Index Key Accounts payable Accounts Payable, Current Share-settled contingent liability Sharesettled Contingent Liability Represents the amount of share-settled contingent liability Entity Shell Company Entity Small Business Entity Tax Identification Number Warrant liabilities Balance at Ending Balance at Beginning Warrants and Rights Outstanding Shareholders’ deficit: Equity, Attributable to Parent [Abstract] Ordinary shares, authorized (in Shares) Authorized to issue Common Stock, Shares Authorized Statement of Financial Position [Abstract] Convertible Preferred Shares, authorized (in Shares) Convertible preferred shares Preferred Stock, Shares Authorized Total shareholders' deficit Balance Balance Equity, Attributable to Parent Ordinary shares, par value (in Euro per share) Par value Common Stock, Par or Stated Value Per Share Convertible Preferred Shares, outstanding (in Shares) Preferred Stock, Shares Outstanding (Provision) benefit for income taxes Income Tax Expense (Benefit) Statement [Table] Corporate capital Corporate Capital Member Ordinary shares Common Stock [Member] Effect of exchange rate changes on cash and cash equivalents Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Foreign currency translation Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Balance (in Shares) Balance (in Shares) Shares, Outstanding Unrealized foreign exchange (gain) loss Unrealized Gain (Loss), Foreign Currency Transaction, before Tax Change in fair value of warrants Change in fair value - warrant liabilities Fair Value Adjustment of Warrants Accounts receivable, net Increase (Decrease) in Accounts Receivable Accrued expenses and other current liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Ordinary shares, issued (in Shares) Convertible preferred shares into ordinary shares Shares issued (in Shares) Convertible Preferred Shares, par value (in Euro per share) Per share Preferred Stock, Par or Stated Value Per Share Organization [Abstract] Summary of Significant Accounting Policies [Abstract] Fair Value Measurements [Abstract] Warrants Warrants Text Block The disclosure of warrants text block. Shareholders’ Deficit Abstract] Prepaid Expenses and Other Current Assets Other Current Assets [Text Block] Previously Reported Previously Reported [Member] Revision of Prior Period [Domain] Accumulated deficit Retained Earnings [Member] Cash and cash equivalents at beginning of the period Cash and cash equivalents at end of the period Cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Ordinary shares, outstanding (in Shares) Common Stock, Shares, Outstanding Additional paid-in capital Additional Paid-in Capital [Member] Accumulated other comprehensive (loss) income AOCI Attributable to Parent [Member] Revision of Prior Period [Axis] Statement [Line Items] Other income, net Other Nonoperating Income Change in fair value - share settled contingent liability Change In Fair Value Share Settled Contingent Liability Amount of expense (income) related to adjustment to fair value of share settled contingent liability. Total other (expense) income, net Nonoperating Income (Expense) Operating expenses: Operating Expenses [Abstract] Development costs Research and Development Expense Loss from operations Operating Income (Loss) Other comprehensive income (loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Total comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Cash flows from investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Revision of Prior Period, Adjustment Revision of Prior Period, Adjustment [Member] Statement of Stockholders' Equity [Abstract] Equity Components [Axis] Convertible Preferred Shares Convertible Preferred Shares [Member] Convertible Preferred Shares Member Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net change in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Excluding Exchange Rate Effect, Including Discontinued Operation Loss before income taxes Pretax loss Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest General and administrative Selling, General and Administrative Expense Total operating expenses Operating Expenses Other income (expenses): Other Nonoperating Income (Expense) [Abstract] Change in foreign currency translation adjustment Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Equity Component [Domain] Changes in operating assets and liabilities: Increase (Decrease) in Operating Assets [Abstract] Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Adjustments to reconcile net loss to net cash (used in) provided by operating activities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Change in fair value of share-settled contingent liability Change In Fair Value Of Sharesettled Contingent Liability Represents the amount of change in fair value of share-settled contingent liability. Depreciation expense Depreciation Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable Increase (Decrease) in Accounts Payable Other non-current liabilities Increase (Decrease) in Other Noncurrent Liabilities Cash flows from financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value Hierarchy and NAV [Domain] Balance Balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Foreign currency translation Gain (Loss), Foreign Currency Transaction, before Tax Fair Value Measurements - Schedule of Estimated the Fair Value of Bridge Package Contingent Warrants (Details) [Table] Schedule Of Estimated The Fair Value Of Bridge Package Contingent Warrants Abstract Maximum [Member] Maximum [Member] Minimum [Member] Minimum [Member] Statistical Measurement [Axis] Statistical Measurement [Domain] Dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Weighted average expected term (years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Risk-free interest rate Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Weighted average expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Weighted Average Volatility Rate Schedule of Estimated the Fair Value of Bridge Package Contingent Warrants [Line Items] Bridge Loan Warrant [Member] Bridge Loan Warrant Member Fair Value Measurements - Schedule of Significant Assumptions used in the Valuation of the Liability Classified Warrants (Details) [Table] PIPE Warrant [Member] PIPEWarrant Member Schedule Of Significant Assumptions Used In The Valuation Of The Liability Classified Warrants Abstract Schedule of Significant Assumptions used in the Valuation of the Liability Classified Warrants [Line Items] Equipment, Net [Abstract] Equipment, net Property, Plant, and Equipment [Text Block] Schedule of Equipment, Net Property, Plant, and Equipment [Table Text Block] Computer hardware [Member] Computer Hardware [Member] Fixed assets not in service [Member] Fixed Assets Not in Service [Member] Schedue of Equipment, Net [Abstract] Less: accumulated depreciation Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Basis of Consolidation Consolidation, Policy [Policy Text Block] Share-settled Contingent Liabilities Share Settled Contingent Liability Policy Text Block Disclosure of accounting policy for share-settled contingent liability. Related Party Transactions Related Party Transactions Policy Text Block Disclosure of accounting policy for related party transactions. Convertible Preferred Shares Convertible Preferred Shares Policy Text Block Disclosure of accounting policy for convertible preferred shares. Foreign Currency Translation and Transaction Gains and Losses Foreign Currency Transactions and Translations Policy [Policy Text Block] Basis of Presentation and Principles of Consolidation Basis of Accounting, Policy [Policy Text Block] Sale of Stock [Axis] Business Combination [Domain] Vesting Sponsor Shares [Member] Vesting Sponsor Shares Member Class of Stock [Axis] Shareholders’ Deficit [Line Items] Shareholder’s Deficit [Line Items] Class B Ordinary Shares [Member] Common Class B [Member] Warrants [Line Items] Schedule of Warrant Liabilities [Line Items] Warrant holders can purchase (in Shares) Stock Issued During Period, Shares, New Issues Warrants exercisable per share Warrant, Exercise Price, Decrease Warrants exercisable per share Warrant, Exercise Price, Increase Warrants [Abstract] Warrant term Warrants and Rights Outstanding, Term Outstanding shares Outstanding Shares The number of outstanding shares. Remaining of percentage Remaining Of Percentage The remaining of percentage. Long-Lived Asset, Class [Axis] Equipment, gross Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization, Total Schedue of Equipment, Net [Line Items] Property, Plant, and Equipment [Line Items] Equipment, net Equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization, Total Long-Lived Asset, Class [Domain] Schedue of Equipment, Net [Table] Property, Plant, and Equipment [Table] Schedule of Basic and Diluted Net Loss Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Power of megawatt electric units Power Generation Capacity A quantitative element representing the maximum electrical output capacity of a power generation system, measured in megawatts (MW) or equivalent units.” Cash and cash equivalents Cash and Cash Equivalent Other functional currencies Loss (gain) recognized in earnings due to change in fair value, net of foreign currency remeasurement impact Gain (Loss), Foreign Currency Transaction, after Tax Ownership voting interests rate Variable Interest Entity, Qualitative or Quantitative Information, Ownership Percentage Engineering Services Agreements [Member] Engineering Services Agreement Member Lease Agreement [Member] Lease Agreement Member Monthly fees Monthly Fees The amount of Monthly fee. Percentage of lease fee Percentage Of Lease Fee Represents the percentage of Lease fee. Related Party Transactions (Details) [Table] Rent expenses Rent Expenses The amount of Rent expenses. Rent payment Payments for Rent Technical services amount Related Party Transaction, Amounts of Transaction Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transactions [Line Items] Related Party Transactions [Abstract] Advisory fees Advisory Fees Amount of consideration paid in advance for advisory fees that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Membership fees Prepaid Membership Fees Amount of asset related to consideration paid in advance for membership fees that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Technical consultancy Prepaid Technical Consultancy Amount of asset related to consideration paid in advance for technical consultancy that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Value added tax Prepaid Value Added Tax Amount of asset related to consideration paid in advance for value added tax that provide economic benefits within a future period of one year or the normal operating cycle, if longer. Schedule of Prepaid Expenses and Other Current Assets [Abstract] Other Other Prepaid Expense, Current Advertising Prepaid Advertising Total prepaid expenses and other current assets Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Insurance Prepaid Insurance Bank interest accrued Prepaid Interest Tax receivables Prepaid Taxes Technical consultancy Technical Consultancy Amount of expenses incurred but not yet paid classified as technical consultancy. Schedule of Accrued Expenses and Other Current Liabilities [Abstract] Legal, accounting and other professional services Accrued Professional Fees, Current Wages payable Accrued Salaries, Current Annual base rent Annual Base Rent The annual base rent. Equity Awards granted Equity Awards Granted Equity Awards granted. Commitments and Contingencies [Abstract] Issuance of ordinary shares anti dilutive instruments Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Dilutive instruments Dilutive Securities, Effect on Basic Earnings Per Share, Total Weighted-average shares outstanding Weighted Average Number of Shares Issued, Basic Entities [Table] Entity Address, Address Line One Entity Address, City or Town Entity Address, Country Entity Addresses [Line Items] Entity Addresses [Table] Entity Address, Postal Zip Code Entity Filer Category Entity Current Reporting Status Entity Information [Line Items] Entity Interactive Data Current Total assets Assets Current liabilities: Liabilities, Current [Abstract] Total liabilities Liabilities Convertible Preferred Shares (€100 par value, 8,040 shares authorized as of March 31, 2026 and December 31, 2025; 20 shares issued and outstanding as of March 31, 2026 and December 31, 2025) Preferred Stock, Value, Issued Accumulated deficit Retained Earnings (Accumulated Deficit) Liabilities and shareholders’ deficit Liabilities and Equity [Abstract] Assets Assets [Abstract] Current assets: Assets, Current [Abstract] Accounts receivable, net Accounts Receivable, after Allowance for Credit Loss, Current Total current assets Assets, Current Trading Symbol Title of 12(b) Security Entity Registrant Name Local Phone Number Other non-current liabilities Other Liabilities, Noncurrent Commitments and contingencies (Note 10) Commitments and Contingencies Ordinary shares (€0.01 par value, 500,000,000 shares authorized as of March 31, 2026 and December 31, 2025; 110,226,198 shares issued and outstanding as of March 31, 2026 and 47,500,000 issued and outstanding as of December 31, 2025) Common Stock, Value, Issued Additional paid-in capital Additional Paid in Capital Total current liabilities Liabilities, Current Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Total liabilities and shareholders’ deficit Liabilities and Equity Income Statement [Abstract] Convertible Preferred Shares, issued (in Shares) Preferred Stock, Shares Issued Cash paid for income taxes Income Tax Paid, before Refund Received Fair Value Measurements Fair Value Disclosures [Text Block] Cash flows from operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Shareholders’ Deficit Equity [Text Block] Prepaid Expenses and Other Current Assets [Abstract] Proceeds from related party loans Proceeds from (Repayments of) Related Party Debt Related Party Transactions Related Party Transactions Disclosure [Text Block] Organization Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Statement of Cash Flows [Abstract] Subsequent Events Subsequent Events [Text Block] Purchases of equipment Payments to Acquire Machinery and Equipment Accrued Expenses and Other Current Liabilities Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Net Loss Per Share Earnings Per Share [Text Block] Supplemental disclosures for cash flow information Supplemental Cash Flow Information [Abstract] Income Taxes Income Tax Disclosure [Text Block] Subsequent Events [Abstract] Accrued Expenses and Other Current Liabilities [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Segment Information Segment Reporting Disclosure [Text Block] Income Taxes [Abstract] Directors compensation Employee-related Liabilities, Current Other Other Accrued Liabilities, Current Value added tax payable Sales and Excise Tax Payable, Current Loss recognized in earnings due to change of fair value, net of foreign currency remeasurement impact Gain Recognized In Earnings Due To Change Of Fair Value Net Of Foreign Currency Exchange Impact The amount of gain recognized in earnings due to change of fair value, net of foreign currency exchange impact. Schedule Of Changes In The Estimated Fair Value Of The Financial Instruments Using Significant Level3 Inputs Abstract Fair Value Hierarchy and NAV [Axis] Level 3 [Member] Fair Value, Inputs, Level 3 [Member] Schedule of Changes in the Estimated Fair Value of the Financial Instruments using Significant Level 3 Inputs [Line Items] Ordinary shares issued Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares Business Combination [Axis] Business Combination, Series of Individually Immaterial Business Combinations [Member] Business Combination, Series of Individually Immaterial Business Combinations [Member] Schedule of Estimated the Fair Value of Share Settled Contingent Liability Using the Monte Carlo Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Class of Warrant or Right [Axis] Class of Warrant or Right [Domain] Dividend yield [Member] Measurement Input, Expected Dividend Rate [Member] Weighted average expected term [Member] Measurement Input, Expected Term [Member] Weighted average expected volatility [Member] Measurement Input, Price Volatility [Member] Risk-free interest rate [Member] Measurement Input, Risk Free Interest Rate [Member] Measurement Input Type [Axis] Measurement Input Type [Domain] Fair value warrants Warrants and Rights Outstanding, Measurement Input Schedule Of Warrant Liabilities Abstract Class of Warrant or Right [Table] Warrants and Derivative Instruments Derivatives, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Schedule of Warrant Liabilities Schedule of Stockholders' Equity Note, Warrants or Rights [Table Text Block] Schedule of Accrued Expenses and Other Current Liabilities Schedule of Accrued Liabilities [Table Text Block] Effective tax rate Effective Income Tax Rate Reconciliation, Percent, Total Schedule of Prepaid Expenses and Other Current Assets Schedule of Other Current Assets [Table Text Block] Schedule of Changes in the Estimated Fair Value of Share Settled Contingent Liability Using Significant Level 3 Inputs Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Recent Accounting Pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Significant Assumptions used in the Valuation of the Liability Classified Warrants Schedule Of Share Based Payment Award Other Than Options Valuation Assumptions Table Text Block Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. Advisor Warrant [Member] Advisor Warrant Member Bridge Warrants [Member] Bridge Warrants Member Warrants (Details) [Table] Warrant exercise price per share Class of Warrant or Right, Exercise Price of Warrants or Rights Convertible preferred share carries Preferred Stock, Convertible, Shares Issuable Shareholder’s Deficit (Details) [Table] Sale of Stock [Domain] Class of Stock [Domain] SPAC Financial Advisor Preferred Shares [Member] SPACFinancial Advisor Preferred Shares Member