Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Conversion of redeemable convertible preferred stock into common stock on the initial public offering (in shares) Conversion of redeemable convertible preferred stock into common stock on the initial public offering (in shares) Temporary Equity, Shares, Conversion Of Convertible Securities Temporary Equity, Shares, Conversion Of Convertible Securities Trading Arrangement: Trading Arrangement [Axis] Maximum Maximum [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Title of 12(b) Security Title of 12(b) Security Document Fiscal Year Focus Document Fiscal Year Focus Discount rate Lessee, Operating Lease, Discount Rate Adjustment to Compensation, Amount Adjustment to Compensation Amount Segment Reporting [Abstract] Schedule of Fair Value of Level 3 Redeemable Convertible Preferred Stock Tranche Liability Fair Value, Assets Measured on Recurring Basis [Table Text Block] Common stock, $.00001 par value; 1,000,000,000 shares authorized, 33,446,315 shares issued and outstanding as of June 30, 2026; 154,383,336 shares authorized; 2,203,620 shares issued and outstanding as of December 31, 2025 Common Stock, Value, Issued Payroll-related accruals Employee-related Liabilities, Current Conversion of redeemable convertible preferred stock into common stock on the initial public offering Temporary Equity, Value, Conversion Of Convertible Securities Temporary Equity, Value, Conversion Of Convertible Securities Entity Addresses [Table] Entity Addresses [Table] Entity Ex Transition Period Entity Ex Transition Period Restatement Determination Date Restatement Determination Date Vested and expected to vest (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Amendment Flag Amendment Flag Current liabilities Liabilities, Current [Abstract] Outstanding shares of preferred stock were converted into common stock (in shares) Conversion of Stock, Shares Converted Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Related Party Transactions Related Party Transactions Disclosure [Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Series C-1 preferred stock Redeemable Convertible Series C-1 Preferred Stock [Member] Redeemable Convertible Series C-1 Preferred Stock Property, Plant, and Equipment [Abstract] Entity Address, State or Province Entity Address, State or Province Granted (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value per share (in dollars per share) Common Stock, Par or Stated Value Per Share Assets Assets, Fair Value Disclosure [Abstract] Weighted average common stock outstanding, basic (in shares) Basic weighted-average shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Retirement Benefits [Abstract] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Number of reportable segment Number of Reportable Segments Short-term investments Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss Series C-2 Preferred Stock Series C-2 Redeemable Convertible Preferred Stock [Member] Series C-2 Redeemable Convertible Preferred Stock Total current liabilities Liabilities, Current Interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Entity Address, City or Town Entity Address, City or Town Short-term and variable lease cost Short-Term Lease And Variable Lease Cost Short-Term Lease And Variable Lease Cost Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Class of Stock [Axis] Class of Stock [Axis] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Level 2 Fair Value, Inputs, Level 2 [Member] Other income (expense) Nonoperating Income (Expense) [Abstract] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Series D preferred stock Redeemable Convertible Series D Preferred Stock [Member] Redeemable Convertible Series D Preferred Stock Purchases of property and equipment included in accounts payable and other current liabilities Capital Expenditures Incurred but Not yet Paid Loss on disposal of property and equipment Gain (loss) on disposition of property and equipment Gain (Loss) on Disposition of Property Plant Equipment Contribution made by employer Defined Contribution Plan, Employer Discretionary Contribution Amount Related and Nonrelated Parties [Axis] Related and Nonrelated Parties [Axis] Property and Equipment, Net Property, Plant, and Equipment [Text Block] Document Period End Date Document Period End Date Changes in: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Series C-2 redeemable convertible preferred stock issuance costs Temporary Equity, Stock Issued During Period, Value, Issuance Costs Temporary Equity, Stock Issued During Period, Value, Issuance Costs Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Preferred stock, shares outstanding (in shares) Preferred Stock, Shares Outstanding Redeemable Convertible Preferred Stock and Stockholders’ Equity (Deficit) Equity [Text Block] Redeemable convertible preferred stock, shares outstanding (in shares) Balance at the beginning (in shares) Balance at the end (in shares) Temporary Equity, Shares Outstanding Security Exchange Name Security Exchange Name Number of tranches Temporary Equity, Number Of Tranches Temporary Equity, Number Of Tranches Short-term investments Debt Securities, Held-to-Maturity, Amortized Cost, after Allowance for Credit Loss, Current Granted (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Entity Addresses [Line Items] Entity Addresses [Line Items] Entity Shell Company Entity Shell Company Change in fair value of the Redeemable Convertible Preferred Stock Tranche Liability in March 2025 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Gain (Loss) Included in Earnings Lease liabilities, current Operating Lease, Liability, Current Series A preferred stock Redeemable Convertible Series A Preferred Stock [Member] Redeemable Convertible Series A Preferred Stock Schedule of Property and Equipment, Net Property, Plant, and Equipment [Table Text Block] Net Loss Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Net loss per share Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Total liabilities Liabilities Trading Symbol Trading Symbol Property and equipment Payments to Acquire Property, Plant, and Equipment Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Unrecognized compensation cost related to non-vested options Share-Based Payment Arrangement, Nonvested Award, Option, Cost Not yet Recognized, Amount Company Selected Measure Name Company Selected Measure Name Sale of Stock [Domain] Sale of Stock [Domain] Income Tax Disclosure [Abstract] Aggregate Liquidation Preference Temporary Equity, Liquidation Preference Related Party Transactions [Abstract] Cash flows from operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Other receivables Other Receivables, Net, Current Compensation Amount Outstanding Recovery Compensation Amount Individual: Individual [Axis] Weighted average common stock outstanding, diluted (in shares) Diluted weighted-average share outstanding (in shares) Weighted Average Number of Shares Outstanding, Diluted Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Software Software [Member] Software Other non-current assets Increase (Decrease) in Other Noncurrent Assets Cash paid for amounts included in the measurement of operating lease liabilities Operating Lease, Payments Award Timing Predetermined Award Timing Predetermined [Flag] Gross proceeds from issuance of redeemable convertible preferred stock Proceeds from Issuance of Redeemable Preferred Stock Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Level 1 Fair Value, Inputs, Level 1 [Member] Redemptions of short-term investments Proceeds from Sale and Maturity of Held-to-Maturity Securities Effective income tax rate reconciliation, percent Effective Income Tax Rate Reconciliation, Percent University of Colorado License Agreement University of Colorado License Agreement [Member] University of Colorado License Agreement All Executive Categories All Executive Categories [Member] Lease liability Increase (Decrease) in Operating Lease Liability Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Preferred stock, par value per share (in dollars per share) Preferred Stock, Par or Stated Value Per Share Depreciation expense Depreciation expense Depreciation Antidilutive Securities [Axis] Antidilutive Securities [Axis] Outstanding balances at beginning of period (in dollars per share) Outstanding balances at end of period (in dollars per share) Weighted average exercise price, options outstanding (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Asset impairment Tangible Asset Impairment Charges Conversion of redeemable convertible preferred stock upon initial public offering Conversion of Stock, Amount Issued Right-of-use asset ROU asset Operating Lease, Right-of-Use Asset Issuance of Series C-2 redeemable convertible preferred stock, net of issuance costs and tranche liability (in shares) Issuance of redeemable convertible preferred stock (in shares) Temporary Equity, Stock Issued During Period, Shares, New Issues Temporary Equity, Stock Issued During Period, Shares, New Issues Schedule of Redeemable Convertible Preferred Stock Temporary Equity [Table Text Block] Renewal term Lessee, Operating Lease, Renewal Term Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Risk free interest rates, maximum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Segment Information Segment Reporting [Text Block] Minimum Minimum [Member] Expiration Date Trading Arrangement Expiration Date Series C-2 preferred stock Redeemable Convertible Series C-2 Preferred Stock [Member] Redeemable Convertible Series C-2 Preferred Stock Location, Statement of Income, Balance [Axis] Location, Statement of Income, Balance [Axis] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Money market funds Cash and Cash Equivalents, Fair Value Disclosure Options outstanding, weighted-average remaining contractual life Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted-Average Remaining Contractual Term Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Options exercisable (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Antidilutive Security, Excluded EPS Calculation [Table] Antidilutive Security, Excluded EPS Calculation [Table] Shares sold in offering (in shares) Sale of Stock, Number of Shares Issued in Transaction Exercise Price Award Exercise Price Cash flows from investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Related Party Transaction [Axis] Related Party Transaction [Axis] Document Quarterly Report Document Quarterly Report Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Other receivables Increase (Decrease) in Other Receivables Equity Component [Domain] Equity Component [Domain] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Adoption Date Trading Arrangement Adoption Date Counterparty Name [Domain] Counterparty Name [Domain] Total stockholders' equity (deficit) Beginning balance Ending balance Equity, Attributable to Parent Total other income (expense) Nonoperating Income (Expense) Entity Addresses, Address Type [Axis] Entity Addresses, Address Type [Axis] Assets Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Accounting Policies [Abstract] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Payments for deferred initial public offering costs Payments of Stock Issuance Costs Insider Trading Policies and Procedures [Line Items] Outstanding balances at beginning of period (in shares) Outstanding balances at end of period (in shares) Options outstanding (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Prepaid expenses and other current assets Prepaid Expense and Other Assets, Current Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Fair Value, Liabilities Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Antidilutive shares (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Number of operating segments Number of Operating Segments Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Central Index Key Entity Central Index Key Less: accumulated depreciation Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Settlement of redeemable convertible preferred stock tranche liability Financial Instrument, Mandatorily Redeemable, Liability Classified, Settlement, Amount All Adjustments to Compensation All Adjustments to Compensation [Member] Stockholders' equity (deficit) Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net cash used in operating activities Net cash used in operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Schedule of Operating Lease Disclosure Assets And Liabilities, Lessee [Table Text Block] Assets And Liabilities, Lessee Income Statement [Abstract] Document Transition Report Document Transition Report Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Operating expenses Operating Expenses [Abstract] Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Schedule of Fair Value of Each Option Grant Using the Black-Scholes Option Pricing Model Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Number of Shares Underlying Options Options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Purchase price (in dollars per share) Temporary Equity, Stock Issued During Period, Value, New Issues, Price Per Share Temporary Equity, Stock Issued During Period, Value, New Issues, Price Per Share City Area Code City Area Code All Individuals All Individuals [Member] Non-cash lease expense Operating Lease, Right-of-Use Asset, Periodic Reduction Name Forgone Recovery, Individual Name Weighted-average period expected to recognize compensation expense (in years) Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Statement [Line Items] Statement [Line Items] Total assets Assets Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Weighted average grant date fair value of stock options granted (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Equity Based Compensation Share-Based Payment Arrangement [Text Block] Issuance of common stock in initial public offering, net of underwriting discounts and commissions and offering costs (in shares) Stock Issued During Period, Shares, New Issues PEO PEO [Member] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Total stock-based compensation expense Share-Based Payment Arrangement, Expense Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Stock option exercises (in shares) Exercised (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] Series D Preferred Stock Series D Redeemable Convertible Preferred Stock [Member] Series D Redeemable Convertible Preferred Stock Accumulated Deficit Retained Earnings [Member] Lease liability, non-current Lease liabilities, non-current Operating Lease, Liability, Noncurrent Total operating expenses Operating Expenses Money market funds Money Market Funds [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Cancelled or expired (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Forfeitures in Period Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Common stock, shares outstanding (in shares) Beginning balance (in shares) Ending balance (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Number of operating lease agreements Lessee, Number Of Operating Leases Lessee, Number Of Operating Leases Net loss per share, diluted (in dollars per share) Diluted net loss per share (in dollars per share) Earnings Per Share, Diluted Entity Current Reporting Status Entity Current Reporting Status Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Expected volatility, maximum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Total Shareholder Return Amount Total Shareholder Return Amount Prepaid expenses and other current assets Increase (Decrease) in Prepaid Expense and Other Assets Payroll-related accruals Increase (Decrease) in Employee Related Liabilities Research and development Research and Development Expense Redeemable convertible preferred stock, par value per share (in dollars per share) Temporary Equity, Par or Stated Value Per Share IPO IPO [Member] Share-Based Payment Arrangement [Abstract] Cash flows from financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Property and equipment, net Property and equipment, net Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Repurchase of common stock Stock Repurchased During Period, Value Stock option exercises Stock Issued During Period, Value, Stock Options Exercised Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Underlying Securities Award Underlying Securities Amount Issuance of common stock in initial public offering, net of underwriting discounts and commissions and offering costs Stock Issued During Period, Value, New Issues Over-Allotment Option Over-Allotment Option [Member] Cancelled or expired (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Other current liabilities Increase (Decrease) in Other Current Liabilities Construction in progress Construction in Progress [Member] Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Address Type [Domain] Address Type [Domain] Risk free interest rates, minimum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Related Party Transaction [Table] Related Party Transaction [Table] Computers and hardware Computer Equipment [Member] Sale of Stock [Axis] Sale of Stock [Axis] Weighted Average Remaining Contractual Life (Years) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Additional Disclosures [Abstract] Schedule of Lease Cost Lease, Cost [Table Text Block] Commitments and Contingencies Disclosure [Abstract] All Trading Arrangements All Trading Arrangements [Member] Fair value of the Redeemable Convertible Preferred Stock Tranche Liability as of December 31, 2024 Fair value of the Redeemable Convertible Preferred Stock Tranche Liability as of June 30, 2025 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Other Performance Measure, Amount Other Performance Measure, Amount Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Change in fair value of redeemable convertible preferred stock tranche liability Change in fair value of redeemable convertible preferred stock tranche liability Gain (Loss) In Fair Value Of Financial Instruments Subject To Mandatory Redemption Gain (Loss) In Fair Value Of Financial Instruments Subject To Mandatory Redemption Loss from operations Operating Income (Loss) Current Fiscal Year End Date Current Fiscal Year End Date Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Related Party Transaction [Domain] Related Party Transaction [Domain] Issuance of Series C-2 and D redeemable convertible preferred stock, net of issuance costs Temporary Equity, Stock Issued During Period, Value, New Issues Temporary Equity, Stock Issued During Period, Value, New Issues Repurchase of common stock (in shares) Company repurchased shares (in shares) Stock Repurchased During Period, Shares Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Entity File Number Entity File Number Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Schedule of Stock Option Activity Share-Based Payment Arrangement, Option, Activity [Table Text Block] Weighted Average Exercise Price Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Common stock, shares issued (in shares) Common Stock, Shares, Issued Measure: Measure [Axis] Description of Business Business Description and Basis of Presentation [Text Block] Uninsured amount Cash, Uninsured Amount Equity Components [Axis] Equity Components [Axis] Related Party Related Party [Member] Class of Stock [Line Items] Class of Stock [Line Items] Cash paid for taxes Income Tax Paid, after Refund Received Series B preferred stock Redeemable Convertible Series B Preferred Stock [Member] Redeemable Convertible Series B Preferred Stock Entity Interactive Data Current Entity Interactive Data Current Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Small Business Entity Small Business Comprehensive loss Comprehensive loss Comprehensive Income (Loss), Net of Tax, Attributable to Parent Termination Date Trading Arrangement Termination Date Property, Plant, and Equipment [Line Items] Property, Plant, and Equipment [Line Items] Settlement of tranche in March 2025 Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Stock split ratio, common stock Stockholders' Equity Note, Stock Split, Conversion Ratio MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Other current liabilities Other Liabilities, Current Redeemable Convertible Series C Preferred Stock Redeemable Convertible Series C Preferred Stock [Member] Redeemable Convertible Series C Preferred Stock Other non-current assets Other Assets, Noncurrent Document Type Document Type Fair Value as of Grant Date Award Grant Date Fair Value Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Increase (Decrease) in Temporary Equity [Roll Forward] Increase (Decrease) in Temporary Equity [Roll Forward] Aggregate intrinsic value of exercisable options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Intrinsic Value Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Arrangement Duration Trading Arrangement Duration Statement of Stockholders' Equity [Abstract] Local Phone Number Local Phone Number Redeemable convertible preferred stock, shares authorized (in shares) Temporary Equity, Shares Authorized Entity Address, Postal Zip Code Entity Address, Postal Zip Code Entity Registrant Name Entity Registrant Name Loss before income tax Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Vested and expected to vest, outstanding, aggregate intrinsic value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Commitments and contingencies (Note 7) Commitments and Contingencies Antidilutive Securities, Name [Domain] Antidilutive Securities, Name [Domain] Property and equipment, gross Property, Plant, and Equipment, before Accumulated Depreciation, Depletion, and Amortization Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Working capital Working Capital Working Capital Machinery and equipment Machinery and Equipment [Member] Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Executive Category: Executive Category [Axis] Counterparty Name [Axis] Counterparty Name [Axis] Furniture and fixtures Furniture and Fixtures [Member] Liabilities, redeemable convertible preferred stock and stockholders' equity (deficit) Liabilities and Equity [Abstract] Other Commitments [Table] Other Commitments [Table] Options exercisable, weighted-average remaining contractual life Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted-Average Remaining Contractual Term Redeemable convertible preferred stock, $.00001 par value; 0 shares authorized, issued, and outstanding as of June 30, 2026; 116,618,581 shares authorized, 20,341,968 shares issued and outstanding as of December 31, 2025 (aggregate liquidation preference of $0 and $200,878,062 as of June 30, 2026 and December 31, 2025, respectively) Balance at the beginning Balance at the end Amount Temporary Equity, Carrying Amount, Attributable to Parent Schedule of Assets and Liabilities that are Measured at Fair Value on a Recurring Basis Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] All Award Types Award Type [Domain] Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Fair Value Measurements Fair Value Disclosures [Text Block] Level 3 Fair Value, Inputs, Level 3 [Member] Supplemental cash flow information Supplemental Cash Flow Information [Abstract] Expected term (years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Operating lease term Lessee, Operating Lease, Term of Contract Common stock at per share (in dollars per share) Share Price PEO Name PEO Name Leasehold improvements Leasehold Improvements [Member] Redeemable convertible preferred stock, shares issued (in shares) Temporary Equity, Shares Issued Long-Lived Asset, Class [Axis] Long-Lived Asset, Class [Axis] Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Entity Tax Identification Number Entity Tax Identification Number Other Commitments [Line Items] Other Commitments [Line Items] Exercised (in dollars per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Cash and cash equivalents, beginning of period Cash and cash equivalents, end of period Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Accounts payable Increase (Decrease) in Accounts Payable Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-NEOs Non-NEOs [Member] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Stock-based compensation Share-Based Payment Arrangement, Noncash Expense Conversion of redeemable convertible preferred stock into common stock on the initial public offering (in shares) Stock Issued During Period, Shares, Conversion of Convertible Securities Amounts of transaction Related Party Transaction, Amounts of Transaction Commitments and Contingencies Lessee, Operating Leases [Text Block] Net loss per share, basic (in dollars per share) Basic net loss per share (in dollars per share) Earnings Per Share, Basic Repurchases of common stock Payments for Repurchase of Common Stock Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Insider Trading Arrangements [Line Items] Award Type Award Type [Axis] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Accumulated deficit Accumulated deficit Retained Earnings (Accumulated Deficit) Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Common Stock Common Stock [Member] Expected volatility Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate Former Address Former Address [Member] Operating lease cost (net of lease modification) Operating Lease, Cost Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Cover [Abstract] Dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Equity Awards Adjustments Equity Awards Adjustments [Member] Total liabilities, redeemable convertible preferred stock and stockholders' equity (deficit) Liabilities and Equity Employee Stock Option Stock options Share-Based Payment Arrangement, Option [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Tabular List, Table Tabular List [Table Text Block] Common stock additional paid-in capital Additional Paid in Capital Purchases of short-term investments Payments to Acquire Held-to-Maturity Securities Name Awards Close in Time to MNPI Disclosures, Individual Name Deferred offering costs Deferred Offering Costs, Noncurrent Deferred Offering Costs, Noncurrent Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Aggregate Intrinsic Value Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Intrinsic Value General and administrative General and Administrative Expense Long-Lived Asset, Class [Domain] Long-Lived Asset, Class [Domain] Offering price per share (in dollars per share) Sale of Stock, Price Per Share Conversion of redeemable convertible preferred stock into common stock on the initial public offering Stock Issued During Period, Value, Conversion of Convertible Securities Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Rent expense Operating Lease, Rent Expense Operating Lease, Rent Expense Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Table] Preferred stock, $.00001 par value; 200,000,000 shares authorized, 0 shares issued and outstanding as of June 30, 2026; 0 shares authorized, issued, and outstanding as of December 31, 2025 Preferred Stock, Value, Issued Adjustment to Compensation: Adjustment to Compensation [Axis] Class of Stock [Domain] Class of Stock [Domain] Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Statement of Cash Flows [Abstract] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Total Assets Assets, Fair Value Disclosure Accounts payable Accounts Payable Vested and expected to vest (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Name Measure Name Income Taxes Income Tax Disclosure [Text Block] Accounts payable Accounts Payable, Current Pay vs Performance Disclosure [Line Items] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Additional Paid In Capital Additional Paid-in Capital [Member] Entity Filer Category Entity Filer Category Name Trading Arrangement, Individual Name Cash and cash equivalents Cash and Cash Equivalent Company Selected Measure Amount Company Selected Measure Amount Non-cancellable lease period Lessee, Operating Lease, Non-Cancellable Lease Period Lessee, Operating Lease, Non-Cancellable Lease Period Entity Address, Address Line Two Entity Address, Address Line Two Stock, Class of Stock [Table] Stock, Class of Stock [Table] Current assets Assets, Current [Abstract] Weighted average remaining lease term (years) Operating Lease, Weighted Average Remaining Lease Term Non-PEO NEO Non-PEO NEO [Member] Entity Address, Address Line One Entity Address, Address Line One ROU asset in exchange for lease liability Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Income tax provision Income Tax Expense (Benefit) Adjustments to reconcile net loss to net cash used in operating activities Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Award Timing Method Award Timing Method [Text Block] Net increase in cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Expected volatility, minimum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Net loss Net loss Net Income (Loss) Attributable to Parent Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Statement [Table] Statement [Table] Gross proceeds from initial public offering of common stock, net of underwriting discounts and commissions Aggregate gross proceeds from the offering Proceeds from Issuance Initial Public Offering Redeemable convertible preferred stock Redeemable Convertible Preferred Stock [Member] Restatement Determination Date: Restatement Determination Date [Axis] Deferred offering costs included in accounts payable and other current liabilities Deferred Offering Costs Incurred But Not Yet Paid Deferred Offering Costs Incurred But Not Yet Paid Proceeds from exercise of stock options Proceeds from Stock Options Exercised Issuance costs of redeemable convertible preferred stock Payments of temporary equity issuance costs Payments Of Temporary Equity Issuance Costs Payments Of Temporary Equity Issuance Costs Interest income Investment Income, Interest Weighted average exercise price, options exercisable (in dollars per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Cash and Cash Equivalents [Axis] Cash and Cash Equivalents [Axis] Defined Contribution Plan Defined Contribution Plan [Text Block] Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block]