Document and Entity Information Document Information [Table] Class of Stock [Axis] Class of Stock [Domain] Common Stock [Member] Common stock Common Stock Series A Preferred Stock [Member] Series A Preferred Stock Series A Represents information pertaining to Series T Preferred Stock. Series T Preferred Stock [Member] Series T Preferred Stock Series T Represents information pertaining to Series Seed Preferred Stock. Series Seed Preferred Stock [Member] Series Seed Preferred Stock Series Seed Document Information [Line Items] Document Information Document Type Document Annual Report Document Period End Date Document Transition Report Securities Act File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(g) Security Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Ex Transition Period Entity Shell Company Entity Common Stock, Shares Outstanding Entity Central Index Key Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Period Focus Amendment Flag Entity Tax Identification Number Trading Symbol Entity Well-known Seasoned Issuer Entity Voluntary Filers ICFR Auditor Attestation Flag Document Financial Statement Error Correction [Flag] Entity Public Float Auditor Name Auditor Location Auditor Firm ID Documents Incorporated by Reference [Text Block] Consolidated Balance Sheets Statement [Table] Statement [Line Items] Assets [Abstract] Assets Assets, Current [Abstract] Current assets: Cash and Cash Equivalent Cash Cash and cash equivalents Marketable Securities, Current Marketable securities Cost Accounts Receivable, after Allowance for Credit Loss, Current Accounts receivable, net of allowance Other Assets, Current Other current assets Assets, Current Total current assets Property, Plant and Equipment, Net Property and equipment, net Total property and equipment, net of depreciation Investments held in warrants as of balance sheet date, classified as noncurrent. Investment in Warrants, Noncurrent Investments - warrants Equity Securities, FV-NI, Noncurrent Investments - Stock Investments private, noncurrent. Investment Private Non Current Investments - Private Investments held in collectibles, (including but not limited to wine, trading cards, artwork, comic books, NFT, watches) as of balance sheet date, classified as noncurrent. Investment in Collectibles, Noncurrent Investments - Collectibles Total collectibles Real Estate Investments, Net Investments - Real Estate Other Receivable, after Allowance for Credit Loss, Noncurrent Due from related party Intangible Assets, Net (Excluding Goodwill) Intangible assets, net Other Assets, Noncurrent Other assets Assets Total assets Liabilities and Equity [Abstract] Liabilities and Stockholders' Equity Liabilities, Current [Abstract] Current liabilities: Accounts Payable, Current Accounts payable Accrued Liabilities, Current Accrued liabilities Contract with Customer, Liability, Current Deferred revenue Liabilities, Current Total current liabilities Liabilities Total liabilities Commitments and Contingencies Commitments and contingencies (Note 6) Equity, Including Portion Attributable to Noncontrolling Interest [Abstract] Stockholders' equity: Preferred Stock, Value, Issued Preferred stock value Common Stock, Value, Issued Common stock, par value $0.00001, 1,580,000,000 shares authorized, 745,825,392 and 702,861,520 shares issued and outstanding at December 31, 2025 and December 31, 2024, respectively. Additional Paid in Capital Additional paid-in capital Equity, Attributable to Noncontrolling Interest Noncontrolling interest Retained Earnings (Accumulated Deficit) Accumulated deficit Equity, Including Portion Attributable to Noncontrolling Interest Balance at the end Balance at the beginning Total stockholders' equity Liabilities and Equity Total liabilities and stockholders' equity Preferred Stock, Par or Stated Value Per Share Preferred stock, par value (in dollars per share) Preferred Stock, Shares Authorized Preferred stock, shares authorized Preferred Shares Authorized Preferred Stock, Shares Issued Preferred stock, shares issued Preferred Stock, Shares Outstanding Preferred stock, shares outstanding Preferred Shares Outstanding Preferred Stock, Liquidation Preference, Value Preferred stock, liquidation preference Common Stock, Par or Stated Value Per Share Common stock, par value (in dollars per share) Common Stock, Shares Authorized Common stock, shares authorized Common Stock, Shares, Issued Common stock, shares issued Common Stock, Shares, Outstanding Common stock, shares outstanding Consolidated Statement of Operations Revenue from Contract with Customer, Excluding Assessed Tax Revenues Total revenues Cost of Revenue Cost of revenues Gross Profit Gross profit Operating Expenses [Abstract] Operating expenses: General and Administrative Expense General and administrative Selling and Marketing Expense Sales and marketing Research and Development Expense Research and development Amount of expense (income) related to adjustment to fair value of warrants received for fees. Change in fair value of warrants Change in fair value of warrants received for fees Amount of expense (income) related to adjustment to fair value of shares received for fees. Fair Value Adjustment Of Shares, Received For Fees Change in fair value of shares received for fees Operating Expenses Total operating expenses Operating Income (Loss) Operating income (loss) Nonoperating Income (Expense) [Abstract] Other income (expense) Other Nonoperating Income (Expense) Other income (expense), net Nonoperating Income (Expense) Total other income (expense), net Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Pre-Tax income (loss) Income (loss) before provision for income taxes Other taxes in operations. Other taxes in Operations Taxes - Other Net income (loss) Net income (loss) Earnings Per Share, Basic Weighted average earnings per share - basic Basic earnings (loss) per share Weighted Average Number of Shares Outstanding, Basic Weighted average shares outstanding - basic Earnings Per Share, Diluted Weighted average earnings per share - diluted Diluted earnings (loss) per share Weighted Average Number of Shares Outstanding, Diluted Weighted average shares outstanding - diluted Consolidated Statements of Stockholders' Equity Equity Components [Axis] Equity Component [Domain] Preferred Stock [Member] Preferred stock Additional Paid-in Capital [Member] Additional Paid-in Capital Noncontrolling Interest [Member] Noncontrolling Interest Retained Earnings [Member] Accumulated Deficit Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Shares, Issued Balance at the end (in shares) Balance at the beginning (in shares) Stock Issued During Period, Value, New Issues Sale of Common Stock Stock Issued During Period, Shares, New Issues Sale of Common Stock (in shares) Stock Issued During Period, Value, Conversion of Convertible Securities Conversion of Preferred Stock Stock Issued During Period, Shares, Conversion of Convertible Securities Conversion of Preferred Stock (in shares) Stock Issued During Period, Value, Stock Options Exercised Exercise of stock options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period Exercised Exercise of stock options (in shares) Options exercised to purchase common stock Adjustments to Additional Paid in Capital, Stock Issued, Issuance Costs Offering Costs Equity offering costs stockholders' equity APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Stock compensation expense Consolidated Statements of Cash Flows Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Cash flows from operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Adjustments to reconcile net loss to net cash used in operating activities: Depreciation Depreciation Depreciation expense Amortization Amortization Accounts Receivable, Credit Loss Expense (Reversal) Bad debt expense Loss on Sale of Investments Realized loss on sale of investments - building The amount of fair value of warrants received for fees. Fair Value of Warrants Received for Fees Fair value of investments - other received for fees Amount of expense (income) related to adjustment to fair value of warrants received for fees. Fair Value Adjustment Of Warrants Received For Fees Change in fair value of warrant investments The amount of impairment in value of shares received for fees. Impairment of investments - other received for fees Impairment of investments - other received for fees Share-Based Payment Arrangement, Noncash Expense Stock-based compensation Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Changes in operating assets and liabilities: Increase (Decrease) in Accounts Receivable Accounts receivable Increase (Decrease) in Other Current Assets Other current assets Amount of private stock purchase. Private stock purchases Purchases of private investments StartEngine Private stock purchases Cash received for private stock sales during the current period. Proceeds From Private Stock Sales Proceeds from sale of StartEngine Private stock Increase (Decrease) Due from Other Related Parties Due from related parties Increase (Decrease) in Accounts Payable, Trade Accounts payable Increase (Decrease) in Accrued Liabilities Accrued liabilities Increase (Decrease) in Contract with Customer, Liability Deferred revenue Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Net cash provided by (used in) operating activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Cash flows from investing activities: Payments to Acquire Property, Plant, and Equipment Purchase of property and equipment Amount of cash inflow from sale of real estate classified as financing activity. Proceeds From Sale Of Real Estate Investments Proceeds from sale of real estate Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Net cash provided by investing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Cash flows from financing activities: Proceeds from Issuance of Common Stock Proceeds from sale of common stock Payments of Stock Issuance Costs Offering costs Proceeds from Stock Options Exercised Proceeds from exercise of employee stock options Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net cash provided by financing activities Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Increase (decrease) in cash and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Cash and restricted cash, end of period Cash and restricted cash, beginning of period Supplemental Cash Flow Information [Abstract] Supplemental disclosures of cash flow information: Income Taxes Paid, Net Cash paid for income taxes NATURE OF OPERATIONS Nature of Operations [Text Block] NATURE OF OPERATIONS SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES MARKETABLE SECURITIES AND INVESTMENTS Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] MARKETABLE SECURITIES AND INVESTMENTS PROPERTY AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] PROPERTY AND EQUIPMENT INTANGIBLE ASSETS Intangible Assets Disclosure [Text Block] INTANGIBLE ASSETS COMMITMENTS AND CONTINGENCIES. Commitments and Contingencies Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES STOCKHOLDERS' EQUITY Equity [Text Block] STOCKHOLDERS' EQUITY INCOME TAXES Income Tax Disclosure [Text Block] INCOME TAXES RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] RELATED PARTY TRANSACTIONS SUBSEQUENT EVENTS Subsequent Events [Text Block] SUBSEQUENT EVENTS Basis of Accounting, Policy [Policy Text Block] Basis of Presentation Consolidation, Policy [Policy Text Block] Principles of Consolidation Use of Estimates, Policy [Policy Text Block] Use of Estimates Cash and Cash Equivalents, Policy [Policy Text Block] Cash Equivalents Fair Value Measurement, Policy [Policy Text Block] Fair Value of Financial Instruments Accounts Receivable [Policy Text Block] Accounts Receivable Disclosure of accounting policy related to the investment securities. Investment Securities [Policy Text Block] Investment Securities Disclosure of accounting policy related to the investments warrant assets. Investments Warrant Assets [Policy Text Block] Investments - Warrants Disclosure of accounting policy related to the investments stock. Investments Stock [Policy Text Block] Investments - Stock Disclosure of accounting policy related to investment in private shares. Investment, Private [Policy Text Block] Investments - Private Disclosure of accounting policy related to the investments collectibles. Investments Collectibles [Policy Text Block] Investments - Collectibles Disclosure of accounting policy related to the investments real estate. Investments Real Estate [Policy Text Block] Investments - Real Estate Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Intangible Assets Disclosure of accounting policy related to the noncontrolling interest. Noncontrolling Interest [Policy Text Block] Noncontrolling Interest Disclosure of accounting policy related to the equity offering costs. Equity Offering Costs [Policy Text Block] Equity Offering Costs Revenue [Policy Text Block] Revenue Recognition Disclosure of accounting policy related to the cost of revenues. Cost Of Revenues [Policy Text Block] Cost of Revenues Research and Development Expense, Policy [Policy Text Block] Research and Development Share-Based Payment Arrangement [Policy Text Block] Stock-Based Compensation Earnings Per Share, Policy [Policy Text Block] Earnings per Common and Common Equivalent Share Concentration Risk, Credit Risk, Policy [Policy Text Block] Concentration of Credit Risk New Accounting Pronouncements, Policy [Policy Text Block] Recent Accounting Pronouncements Schedule of information pertaining to accounting policies. Accounting Policies [Table] Asset Class [Axis] Asset Class [Domain] Warrant [Member] Investments - warrants This member stands for stock. Investments - stock Investments - stock Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. Accounting Policies [Line Items] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Fair Value Measurements, Recurring and Nonrecurring [Table Text Block] Schedule of assets and liabilities that are measured at fair value Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table Text Block] Schedule of additional information about transfers in and out of Level 3 assets measured at fair value Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Schedule of range of variables used in valuing Level 3 warrant assets Tabular disclosure of breakdown of investments in private assets by industry. Schedule Of Private Assets Investments By Industry [Table Text Block] Schedule of breakdown of the StartEngine private assets held by industry Tabular disclosure of breakdown of the types of collectibles and their value held. Schedule Of Breakdown Of Types Of Collectibles And Their Value Held [Table Text Block] Schedule of breakdown of the types of collectibles and their value held Disaggregation of Revenue [Table Text Block] Schedule of disaggregation of revenues Schedule of Weighted Average Number of Shares [Table Text Block] Schedule of calculation of weighted average shares outstanding - basic and diluted Schedule of Antidilutive Securities Excluded from Computation of Earnings Per Share [Table Text Block] Schedule of antidilutive securities excluded from computation of earnings per share Marketable Securities [Table Text Block] Schedule of estimated fair market values of investments in securities Tabular disclosure of total income (loss) from investments in stock and warrants. Schedule Of Income (Loss) From Investments In Stock And Warrants [Table Text Block] Schedule of income loss from stock and warrant investments Property, Plant and Equipment [Table Text Block] Schedule of property and equipment Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Schedule of estimated aggregate amortization for succeeding fiscal years Tabular disclosure of information pertaining to preferred stock series designation, authorized and outstanding. Schedule of Preferred Stock [Table Text Block] Schedule of designation, shares authorized, and shares outstanding for the Company's Preferred Stock Schedule of Share-Based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of inputs valued under using the Black-Scholes pricing model Share-Based Payment Arrangement, Option, Activity [Table Text Block] Schedule of stock option activity and related information Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table Text Block] Schedule of stock option expense Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Summary of provision for income tax expense (benefit) Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Summary of reconciliations of the expected income tax expense (benefit) and the actual income tax expense (benefit) Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Summary of net deferred income tax assets (liabilities) Error Correction [Table] Plan Name [Axis] Plan Name [Domain] Plan name for share-based payment arrangement. 2025 Equity Incentive Plan Error Corrections and Prior Period Adjustments Restatement [Line Items] NATURE OF OPERATIONS Stockholders' Equity Note, Stock Split, Conversion Ratio Stock split conversion ratio Represents the increased number of common stock shares authorized after the split. Common Stock, Shares Authorized, After Split Common stock shares authorized to issue after split Represents the increased number of preferred stock shares authorized after the split. Preferred Stock Shares Authorized After Split Preferred stock shares authorized to issue after split Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Maximum number of shares authorized to issue Federal Deposit Insurance Corporation Premium Expense Balances are insured by the federal deposit insurance corporation Cash, Uninsured Amount Cash uninsured amount Fair Value, Recurring and Nonrecurring [Table] Measurement Frequency [Axis] Measurement Frequency [Domain] Fair Value, Recurring [Member] Recurring Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value, Inputs, Level 1 [Member] Level 1 Fair Value, Inputs, Level 2 [Member] Level 2 Fair Value, Inputs, Level 3 [Member] Level 3 This member stands for marketable securities. Marketable securities [Member] Marketable securities Represents the information pertaining to Non-Fungible Token ("NFT"). Non-Fungible Token ("NFT") Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis The percentage of write down on asset carrying value in the absence of new offerings. Percentage Of Write Down, Asset Carrying Value Stock carry value Assets, Fair Value Disclosure Asset Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Table] Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward] Transfers in and out of Level 3 assets measured at fair value Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Fair value at Ending balance Fair value at Beginning balance Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Purchases Receipt of warrants Amount of reclassification of financial instrument to classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Reclassification Reclass of stock to receivable Amount of Change in fair value of financial instrument classified as an asset measured using unobservable inputs that reflect the entity's own assumption about the assumptions market participants would use in pricing. Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Change In Fair Value Change in fair value Fair Value Measurement Inputs and Valuation Techniques [Table] Measurement Input Type [Axis] Measurement Input Type [Domain] Measurement Input, Expected Term [Member] Expected life (years) Measurement Input, Risk Free Interest Rate [Member] Risk-free interest rate Measurement Input, Price Volatility [Member] Expected volatility Measurement Input, Expected Dividend Rate [Member] Annual dividend yield Measurement Input, Share Price [Member] Underlying share values Measurement Input, Exercise Price [Member] Strike Prices Statistical Measurement [Axis] Statistical Measurement [Domain] Minimum [Member] Minimum Maximum [Member] Maximum Fair Value Measurement Inputs and Valuation Techniques [Line Items] Range of variables were used in valuing Level 3 warrant assets Value of input used to measure warrant asset. Warrant Assets, Measurement Input Warrant assets Industry Sector [Axis] Industry Sector [Domain] Sector of the economy consisting of companies engaged in business activities related to artificial intelligence chips. Artificial Intelligence Chips Sector [Member] AI Chips Financial Services Sector [Member] Fintech Sector of the economy consisting of companies engaged in business activities related to sales technology. Sales Technology Sector [Member] Sales Technology Sector of the economy consisting of companies engaged in business activities related to video games. Video Games Sector of the economy consisting of companies engaged in business activities related to artificial intelligence software. Artificial Intelligence Software Sector [Member] AI Software Consumer Sector [Member] Consumer Goods Software Development [Member] Software Development Sector of the economy consisting of companies engaged in medical technology-related business activities. Medical Technology Sector [Member] Medical Technology Sector of the economy consisting of companies engaged Blockchain-related business activities. Blockchain Sector [Member] Blockchain Sector of the economy consisting of companies engaged in business activities related to Rare Earth. Rare Earth Materials [Member] Rare Earth Materials Sector of the economy consisting of companies engaged in business activities related to Advanced Materials. Advanced Materials [Member] Advanced Materials Sector of the economy consisting of companies engaged in business activities related to AI Vehicles. AI Vehicles [Member] AI Vehicles Sector of economy consisting of companies engaged in business activity related to defense technology. Defense Technology Sector [Member] Defense Technology Sector of the economy consisting of companies engaged in business activities related to prediction markets. Prediction Markets [Member] Prediction Markets Sector of the economy consisting of companies engaged in business activities related to robotics. Robotics [Member] Robotics Sector of the economy consisting of companies engaged in business activities related to space technology. Space Technology [Member] Space Technology Accounts Receivable, Allowance for Credit Loss, Current Allowance for doubtful accounts Amount of accounts receivable over 90 days, as of the balance sheet date. Accounts Receivable Over Ninety Days Accounts receivable over 90 days Amount of cost of shares received as payment for fees, in connection with negotiated platform fee agreements. Cost Of Stock Received As Payment For Fees Cost of stock received as payment for fees Amount of impairment charge on shares received as payment for fees, in connection with negotiated platform fee agreements. Shares Received As Payment For Fees, Impairment Charge Amount of write down expense related to shares received Value of wine held as collectible as of the balance sheet date, classified as noncurrent. Wine, Noncurrent Wine Value of trading cards held as collectible as of the balance sheet date, classified as noncurrent. Trading Cards, Noncurrent Trading Cards Value of artwork held as collectible as of the balance sheet date, classified as noncurrent. Artwork, Noncurrent Artwork Value of comic books held as collectible as of the balance sheet date, classified as noncurrent. Comic Books, Noncurrent Comic Books Value of non fungible token held as collectible as of the balance sheet date, classified as noncurrent. Non Fungible Token, Noncurrent NFT Value of watches held as collectible as of the balance sheet date, classified as noncurrent. Watches, Noncurrent Watches Business Combination [Axis] Business Combination [Domain] Represents the information pertaining to SeedInvest which comprises Circle Internet Financial Limited through its subsidiary Pluto Holdings, LLC, a Delaware limited liability company ("Pluto Holdings") and through SI Securities, LLC, a New York limited liability company ("SI Securities"), and SeedInvest Technology, LLC, a New York limited liability company, each a wholly-owned subsidiary of Pluto Holdings ("SeedInvest Technology," collectively, with the assets acquired from Pluto Holdings and SI Securities. SeedInvest SeedInvest Geographical [Axis] Geographical [Domain] CALIFORNIA California Number of residential apartment building in which the company has invested. Number Of Residential Apartment Building In Which Company Has Invested Number of residential apartment building in which the company has invested Agreed sale price on real estate building. Real Estate Investments, Agreed Price on Sale Agreed sale price Finite-Lived Intangible Asset, Useful Life Estimated useful life of finite lived intangible assets (in years) Finite-Lived Intangible Assets, Accumulated Amortization Accumulated amortization Disaggregation of Revenue [Table] Product and Service [Axis] Product and Service [Domain] This member stands for Regulation Crowdfunding platform fees. Regulation Crowdfunding platform fees [Member] Regulation Crowdfunding platform fees This member stands for Regulation A commissions. Regulation A commissions [Member] Regulation A commissions This member stands for StartEngine Premium. StartEngine Premium [Member] StartEngine Premium This member stands for StartEngine Secure. StartEngine Secure [Member] StartEngine Secure This member stands for StartEngine Private. StartEngine Private [Member] StartEngine Private This member stands for Venture Club revenue. Venture Club Revenue [Member] Venture Club (formerly OWNers Bonus) revenue Service, Other [Member] Other service revenue Disaggregation of Revenue [Line Items] Revenue Recognition Weighted Average Number of Shares Outstanding Reconciliation [Abstract] Calculation of weighted average shares outstanding - basic and diluted Incremental Common Shares Attributable to Dilutive Effect of Share-Based Payment Arrangements Effect of diluted stock options Incremental Common Shares Attributable to Dilutive Effect of Conversion of Preferred Stock Effect of convertible preferred shares Antidilutive Security, Excluded EPS Calculation [Table] Antidilutive Securities [Axis] Antidilutive Securities, Name [Domain] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive securities excluded from computation of earnings per share Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Potentially issuable shares Number of Reportable Segments Number of reportable segments Marketable Securities [Table] Marketable Securities [Line Items] MARKETABLE SECURITIES AND INVESTMENTS Equity Securities Fair value of marketable securities. Marketable Securities Fair Value Disclosure Estimated Fair Value Amount of realized and unrealized loss on investment in stock and warrants. Realized And Unrealized Loss On Investments In Stock And Warrants Realized and unrealized losses on investments The amount of total loss (gain) on investments in stock and warrants. Loss (Gain) On Investments in Stock And Warrants Total Loss Property, Plant and Equipment [Table] Long-Lived Tangible Asset [Axis] Long-Lived Tangible Asset [Domain] Computer Equipment [Member] Computer equipment Software and Software Development Costs [Member] Software Property, Plant and Equipment [Line Items] PROPERTY AND EQUIPMENT Property, Plant and Equipment, Gross Total property and equipment Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Accumulated depreciation Intangible Asset, Indefinite-Lived [Table] Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets, Major Class Name [Domain] Customer Lists [Member] Customer list Indefinite-Lived Intangible Assets [Line Items] INTANGIBLE ASSETS Business Combination, Consideration Transferred, Equity Interest, Share Issued, Number of Shares Number of common stock shares issuable Business Combination, Price Per Share Share price Business Combination, Consideration Transferred Consideration on acquisition Acquired Finite-Lived Intangible Assets, Weighted Average Useful Life Useful life Percentage of concentration of gross assets acquired in a business acquisition transaction. Business Acquisition, Gross Assets Acquired, Concentration Percentage Percentage of gross assets acquired Impairment of Intangible Assets, Finite-Lived Impairment of intangible assets Finite-Lived Intangible Asset, Expected Amortization, Year One 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Two 2027 Finite-Lived Intangible Asset, Expected Amortization, Year Three 2028 Finite-Lived Intangible Asset, Expected Amortization, Year Four 2029 Finite-Lived Intangible Asset, Expected Amortization, Year Five 2030 Finite-Lived Intangible Assets, Net Total Stock, Class of Stock [Table] Class of Stock [Line Items] Common stock Preferred Stock The per share amount available for distribution on liquidation. Per Share Amount Available for Distribution on Liquidation Per share amount available for distribution on liquidation The maximum offering price per share for conversion. Maximum offering price per share for conversion Maximum offering price per share for conversion The maximum aggregate gross proceeds for conversion. Maximum Aggregate Gross Proceeds for conversion Maximum aggregate gross proceeds for conversion Preferred Stock, Capital Shares Reserved for Future Issuance Shares available for issuance Potentially Issuable Preferred Shares Amount of incurred offering costs. Incurred Offering Costs Incurred offering costs Schedule of Share-Based Compensation Arrangements by Share-Based Payment Award [Table] Represents the information pertaining to 2015 Equity incentive plan. Equity Incentive Plan 2015 [Member] 2015 Equity Incentive Plan Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] STOCKHOLDERS' EQUITY Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Exercise price of options granted Granted (USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Award Vesting Period Vesting term Share-Based Compensation Arrangement by Share-Based Payment Award, Expiration Period Expire term Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Term Expected life (years) Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Minimum Risk-free interest rate, Minimum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Risk Free Interest Rate, Maximum Risk-free interest rate, Maximum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Minimum Expected volatility, Minimum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Volatility Rate, Maximum Expected volatility, Maximum Share-Based Compensation Arrangement by Share-Based Payment Award, Fair Value Assumptions, Expected Dividend Rate Annual dividend yield Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding [Roll Forward] Options Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Number Ending balance (in shares) Beginning balance (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Granted Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Expirations in Period Expired/Cancelled Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Number Exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Vested and expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Weighted Average Exercise Price Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Exercise Price Ending balance (USD per share) Beginning balance (USD per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Exercises in Period, Weighted Average Exercise Price Exercised (USD per share) Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Expirations in Period, Weighted Average Exercise Price Expired/Cancelled (USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Exercise Price Exercisable (USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Vested and expected to vest (USD per share) Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Weighted average Remaining Contractual Life, Outstanding Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Weighted average Remaining Contractual Term, Exercisable Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Weighted average Remaining Contractual Term, Vested and expected to vest Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted average grant date fair values of options granted Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Exercises in Period, Intrinsic Value Option exercised Share-Based Payment Arrangement, Expense Stock option expense Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Amount Compensation cost related to nonvested awards not yet recognized Share-Based Payment Arrangement, Nonvested Award, Cost Not yet Recognized, Period for Recognition Compensation cost related to nonvested awards not yet recognized, expected weighted-average period for recognition Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Table] Statement of Income Location, Balance [Axis] Statement of Income Location, Balance [Domain] Cost of Sales [Member] Cost of revenues General and Administrative Expense [Member] General and administrative Selling and Marketing Expense [Member] Sales and marketing Research and Development Expense [Member] Research and development Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] Share-Based Payment Arrangement, Expensed and Capitalized, Amount Income Tax Expense (Benefit) Total income tax expense (benefit) Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Expected Federal income tax expense (benefit) Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount State income tax expense (benefit) Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Amount Stock option compensation Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Amount Section 162(m) Limitation Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Other permanent differences Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Amount Prior Year True-Up Adjustments Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount Change in Valuation Allowance Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Expected Federal income tax expense (benefit) (Percentage) Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent State income tax expense (benefit) (Percentage) Effective Income Tax Rate Reconciliation, Tax Expense (Benefit), Share-Based Payment Arrangement, Percent Stock option compensation (Percentage) Effective Income Tax Rate Reconciliation, Nondeductible Expense, Share-Based Payment Arrangement, Percent Section 162(m) Limitation (Percentage) Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Other permanent differences (Percentage) Effective Income Tax Rate Reconciliation, Prior Year Income Taxes, Percent Prior Year True-Up Adjustments (Percentage) Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Percent Change in Valuation Allowance (Percentage) Effective Income Tax Rate Reconciliation, Percent Total income tax expense (benefit) (Percentage) Effective Income Tax Rate Reconciliation [Table] Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Domain] Domestic Tax Jurisdiction [Member] Federal UNITED STATES U.S. Federal State and Local Jurisdiction [Member] California Effective Income Tax Rate Reconciliation [Line Items] INCOME TAXES Operating Loss Carryforwards Amount of operating loss carryforward before tax subject to expiration, available to reduce future taxable income under enacted tax laws. Operating Loss Carry forwards Subject To Expiration Operating loss carryforwards subject to expiration Deferred Tax Assets, Operating Loss Carryforwards Net Operating Loss Carryovers Deferred Tax Assets, Tax Credit Carryforwards Credit Carryovers Deferred Tax Asset, In-Process Research and Development Capitalized Research and Development Deferred Tax Assets, Tax Deferred Expense, Reserves and Accruals Reserves and Allowances Deferred Tax Assets, Capital Loss Carryforwards Capital Loss Carryover Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from depreciation and amortization. Deferred Tax Assets, Depreciation and Amortization Depreciation Deferred Tax Assets, Gross Deferred Tax Assets Deferred Tax Assets, Valuation Allowance Less: Valuation Allowance Deferred Tax Assets, Net of Valuation Allowance Net Deferred Tax Assets Related Party Transaction [Table] Counterparty Name [Axis] Counterparty Name [Domain] Represents information pertaining to StartEngine Collectibles LLC. StartEngine Collectibles LLC [Member] StartEngine Collectibles LLC Represents information pertaining to StartEngine Loans, LLC. StartEngine Loans, LLC [Member] StartEngine Loans, LLC Represents information pertaining to American Incline LLC. American Incline LLC [Member] American Incline LLC Represents information pertaining to S.A. StartEngine. S.A. StartEngine [Member] S.A. StartEngine Represents information pertaining to StartEngine REIT LLC. StartEngine REIT LLC [Member] StartEngine REIT LLC Related and Nonrelated Parties [Axis] Related and Nonrelated Parties [Domain] Related Party Related Party Transaction [Line Items] RELATED PARTY TRANSACTIONS Other Receivables Due from related parties Other Receivable, after Allowance for Credit Loss, Related Party [Extensible Enumeration] Payments to Acquire Additional Interest in Subsidiaries Investment in S.A. StartEngine Other Liabilities Related party liability Related Party Transaction, Amounts of Transaction Payments to related party for legal service Accounts Payable Amount owed to selling shareholders Subsequent Event [Table] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent events Represents information pertaining to Vinovest, Inc. Vinovest, Inc [Member] Vinovest, Inc Subsequent Event [Line Items] SUBSEQUENT EVENTS Number of shares held back from equity interest issuable or issued for potential indemnification obligations at the acquisition date in business combination. Business Combination, Shares Held Back, For Indemnification Obligations Shares held back Share-Based Compensation Arrangement by Share-Based Payment Award, Shares Issued in Period Shares issued in period Share Price