Class of Stock [Axis] Series A Preferred Stock [Member] Equity Components [Axis] Preferred Stock [Member] Common Stock [Member] Additional Paid-in Capital [Member] Subscriptions Received [Member] Retained Earnings [Member] Noncontrolling Interest [Member] Business Combination [Axis] MEI Acquisition [Member] Counterparty Name [Axis] MEI Selling Shareholder [Member] Transaction Type [Axis] Aquisition Fee Payable [Member] Statistical Measurement [Axis] Minimum [Member] Maximum [Member] Product and Service [Axis] Implementation Fees Services Point In Time [Member] License [Member] Subscription Fees [Member] Millenium EBS Inc. [Member] Antidilutive Securities [Axis] Long-Lived Asset, Class [Axis] Furniture and Fixtures [Member] Leasehold Improvements [Member] Office Equipment [Member] Vehicles [Member] Collaborative Arrangement and Arrangement Other than Collaborative [Axis] Stock Exchange And Acquisition Agreement [Member] Ownership [Axis] MEI [Member] Intangible Asset, Finite-Lived, Class [Axis] Millenium Payment Hub Platform [Member] Internal Use Software Development [Member] Prepaid Debit And Credit Card Software [Member] Other Intangible Asset Payment Hub [Member] Related and Nonrelated Parties [Axis] Chief Executive Officer [Member] Director [Member] Millenium Consultants, Inc. [Member] Related Party Transaction [Axis] Employment Agreement [Member] Other Amounts Due [Member] Office Lease [Member] Lease Contractual Term [Axis] First Month Payment [Member] Vehicle Registration [Member] Office Lease August 2020 [Member] Office Lease October 2020 [Member] Shinto Matthew [Member] Debt Conversion Description [Axis] March 2026 Matthew Conversion [Member] Plan Name [Axis] 2022 Stock Incentive Plan [Member] Cover [Abstract] Document Type Amendment Flag Amendment Description Document Registration Statement Document Annual Report Document Quarterly Report Document Transition Report Document Shell Company Report Document Shell Company Event Date Document Period Start Date Document Period End Date Document Fiscal Period Focus Document Fiscal Year Focus Current Fiscal Year End Date Entity File Number Entity Registrant Name Entity Central Index Key Entity Primary SIC Number Entity Tax Identification Number Entity Incorporation, State or Country Code Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Three Entity Address, City or Town Entity Address, State or Province Entity Address, Country Entity Address, Postal Zip Code Country Region City Area Code Local Phone Number Extension Written Communications Soliciting Material Pre-commencement Tender Offer Pre-commencement Issuer Tender Offer Title of 12(b) Security No Trading Symbol Flag Trading Symbol Security Exchange Name Title of 12(g) Security Security Reporting Obligation Annual Information Form Audited Annual Financial Statements Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Elected Not To Use the Extended Transition Period Document Accounting Standard Other Reporting Standard Item Number Entity Shell Company Entity Public Float Entity Bankruptcy Proceedings, Reporting Current Entity Common Stock, Shares Outstanding Documents Incorporated by Reference [Text Block] Entity Listing, Par Value Per Share Statement of Financial Position [Abstract] ASSETS Current Assets Cash Accounts receivable, net Prepaid deposits and other current assets Total Current Assets Property and equipment, net Software, net Goodwill Right-of-use asset Deposits Total Assets LIABILITIES AND STOCKHOLDERS' EQUITY Current Liabilities Accounts payable and accrued liabilities Compensation payable to officer Deferred revenue Related party payables Loan payable, current portion Lease liabilities - current maturity Total Current Liabilities Loan payable, non-current portion Lease liabilities - net of current maturity Total Liabilities Commitments and Contingencies (See Note 8) Stockholders' Equity Preferred stock, $0.001 par value; 25,000,000 shares authorized, Series A Preferred Stock, 1,000,000 shares designated, 292,000 shares and 292,000 shares issued and outstanding at June 30, 2026 and March 31, 2026, respectively. Common stock, $0.001 par value; 500,000,000 shares authorized, 14,428,865 shares and 14,333,310 shares issued and outstanding at June 30, 2026 and March 31, 2026, respectively. Additional paid in capital Stock subscriptions received Accumulated deficit Total BlueOne Card Inc. Stockholders' Equity Non-controlling interest in subsidiary Total Equity Total Liabilities and Equity Statement [Table] Statement [Line Items] Preferred stock, par value Preferred stock, shares designated Preferred stock, shares issued Preferred stock, shares outstanding Common stock, par value Common stock, shares authorized Common stock, shares issued Common stock, shares outstanding Income Statement [Abstract] Revenues Operating Expenses Cost of revenues (excluding software amortization included in G&A) Legal and filing fees Rent General and administrative Total Operating Expenses Loss from Operations Other Income (Expense) Interest income Interest expense Total Other Income (Expense) Loss before Income Taxes Provision for Income Tax Net Income (Loss) Net Income (Loss) of subsidiary attributable to non-controlling interest Net Income (Loss) Attributable to Common Shareholders Basic Net Income (Loss) Attributable to Common Shareholders Per Share Diluted Net Income (Loss) Attributable to Common Shareholders Per Share Weighted Average Number of Shares Outstanding - Basic Weighted Average Number of Shares Outstanding - Diluted Beginning balance, value Beginning balance, shares Sale of common stock Sale of common stock, shares Debt Conversion (adjustment) Debt conversion (adjustment), shares Net loss Ending balance, value Ending balance, shares Statement of Cash Flows [Abstract] Cash Flows from Operating Activities: Adjustments to reconcile net loss to net cash used in operating activities: Depreciation Inventory reserve Non-cash rent expense Amortization of software Credit loss expense Changes in operating assets and liabilities: (Increase)/decrease in accounts receivable (Increase)/Decrease in inventory (Increase)/Decrease in prepaid deposits and other current assets Increase/(Decrease) in accounts payable and accrued liabilities Increase/(Decrease) in compensation payable to officer Increase/(Decrease) in deferred revenue Increase/(Decrease) in related party payables Net Cash Used in Operating Activities Cash Flows from Investing Activities: Cash paid for purchase of internal-use software costs Cash paid for purchase of property and equipment Cash proceeds from long term assets Net Cash Used in Investing Activities Cash Flows from Financing Activities: Cash proceeds from sale of common stock Cash paid to related party for acquisition of subsidiary Cash proceeds from related party Net Cash Provided by Financing Activities Net (Decrease) in Cash Cash - Beginning of the Year Cash - End of the Year Supplemental Disclosures of Cash Flows Cash paid for interest Cash paid for income taxes Supplemental Disclosures of Non-Cash Investing and Financing Activities Present value of initial lease liability and right-of-use asset Issuance of payable for acquisition Issuance of common stock for acquisition of subsidiary Non-controlling interest acquired Pay vs Performance Disclosure [Table] Executive Category [Axis] Individual [Axis] Adjustment to Compensation [Axis] Measure [Axis] Pay vs Performance Disclosure, Table Company Selected Measure Name Named Executive Officers, Footnote Peer Group Issuers, Footnote Changed Peer Group, Footnote PEO Total Compensation Amount PEO Actually Paid Compensation Amount Adjustment To PEO Compensation, Footnote Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Compensation Actually Paid Amount Adjustment to Non-PEO NEO Compensation Footnote Equity Valuation Assumption Difference, Footnote Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Company Selected Measure Total Shareholder Return Vs Peer Group Compensation Actually Paid vs. Other Measure Tabular List, Table Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Net Income (Loss) Company Selected Measure Amount Other Performance Measure, Amount Adjustment to Compensation, Amount PEO Name Name Non-GAAP Measure Description Additional 402(v) Disclosure Pension Benefits Adjustments, Footnote Equity Awards Adjustments, Footnote Erroneously Awarded Compensation Recovery [Table] Restatement Determination Date [Axis] Restatement Determination Date Aggregate Erroneous Compensation Amount Erroneous Compensation Analysis Stock Price or TSR Estimation Method Outstanding Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Not Yet Determined Name Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery, Explanation of Impracticability Name Compensation Amount Restatement does not require Recovery Awards Close in Time to MNPI Disclosures [Table] Award Type [Axis] Award Timing MNPI Disclosure Award Timing Method Award Timing Predetermined Award Timing MNPI Considered Award Timing, How MNPI Considered MNPI Disclosure Timed for Compensation Value Awards Close in Time to MNPI Disclosures, Table Name Underlying Securities Exercise Price Fair Value as of Grant Date Underlying Security Market Price Change Insider Trading Arrangements [Line Items] Material Terms of Trading Arrangement Name Title Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted Adoption Date Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated Termination Date Expiration Date Arrangement Duration Aggregate Available Insider Trading Policies and Procedures [Line Items] Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Not Adopted Organization, Consolidation and Presentation of Financial Statements [Abstract] NATURE OF OPERATIONS, GOING CONCERN AND BASIS OF PRESENTATION Accounting Policies [Abstract] SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Property, Plant, and Equipment [Abstract] PROPERTY AND EQUIPMENT Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] ACQUISITION OF MILLENIUM EBS, INC. AND NON-CONTROLLING INTEREST Intangible Asset, Goodwill and Other [Abstract] INTERNAL-USE SOFTWARE Related Party Transactions [Abstract] RELATED PARTY TRANSACTIONS Commitments and Contingencies Disclosure [Abstract] COMMITMENTS AND CONTINGENCIES Equity [Abstract] STOCKHOLDERS’ EQUITY Subsequent Events [Abstract] SUBSEQUENT EVENTS Use of Estimates Cash and Cash Equivalents Concentration Accounts Receivable Property and Equipment Internal-Use Software Segment Reporting Long-lived Assets Business Combination Payment Hub Intangible Asset Leases Fair value of Financial Instruments and Fair Value Measurements Revenue Recognition Revenue Disaggregation and Deferred Revenues Cost of Revenues Stock-based Compensation Research and Development Costs Income Taxes Non-controlling interests Earnings (Loss) Per Common Share Schedule of allowance for credit losses Schedule of accounts receivable Schedule of revenues Schedule of deferred revenues Schedule of non-controlling interest Schedule of earnings (loss) per common share Schedule of anti-dilutive shares Schedule of property and equipment Schedule of business acquisition Schedule of software development costs Schedule of software and accumulated amortization Schedule of estimated future amortization expense Schedule of related party payables Property, Plant, and Equipment [Table] Property, Plant, and Equipment [Line Items] Schedule of non-cancellable operating leases Schedule of anticipated future costs Collaborative Arrangement and Arrangement Other than Collaborative [Table] Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] Stock acquired during period, acquisition Stock issued for acquisition, shares Obligation to pay Debt converted into equity Net loss Net cash flows used in operating activities Accumulated deficit Working capital deficit Balance - March 31, 2026 Credit losses expense Less Credit losses written off Balance – June 30, 2026 Accounts receivable Less: Allowance for credit losses Accounts receivable - net Nature of Operation, Product Information, Concentration of Risk [Table] Product Information [Line Items] Total revenues Balance - March 31, 2026 Additions to Deferred Revenue Revenue recognized during the three months ended June 30, 2026 Balance – June 30, 2026 Restructuring Cost [Table] Restructuring Cost and Reserve [Line Items] Fair market value of Millenium EBS assets at acquisition date Allocation of non-controlling interest Initial non-controlling interest at acquisition Loss allocated to non-controlling interest Non-controlling interest Net loss computation of basic and diluted net loss per common share: Net loss attributable to common stockholders Basic net loss per common share Diluted net loss per common share Basic weighted average common shares outstanding Diluted weighted average common shares outstanding Antidilutive Security, Excluded EPS Calculation [Table] Antidilutive Securities Excluded from Computation of Earnings Per Share [Line Items] Antidilutive shares Cash equivalents Net accounts receivable Loans receivable Allowance for credit losses Property and equipment, estimated useful lives Number of Reportable Segments Number of Operating Segments Impairment loss Research and development costs Property and equipment, gross   Estimated Life Less: Accumulated depreciation and amortization Total Depreciation and amortization expense Business Combination [Table] Business Combination [Line Items] Consideration paid for acquisition % of Millennium EBS acquired Fair market value of Millenium EBS assets Deferred Costs Payment Hub Intangible assets Total Assets Acquired Accounts payable Noncontrolling interest Purchase price Allocation of non-controlling interest Initial non-controlling interest at acquisition Stock acquired during period, acquisition Number of shares issued in exchange for common shares Cash Business acquisition allocation of noncontrolling interest percentage Estimated useful life Percentage of millennium EBS acquired Deferred costs Noncontrolling interest Intangible Asset, Finite-Lived [Table] Intangible Asset, Finite-Lived [Line Items] Useful Life (Years) Capitalized software, gross Less: Accumulated amortization Total capitalized software Carrying Value at December 13, 2024 Additions to capitalized software Less: Amortization Carrying Value at June 30, 2026 Fiscal Year ended December 31, 2026 2027 2028 2029 2030 Thereafter Total Capitalized costs Capitalized computer software amortization expense Related Party Transaction [Table] Related Party Transaction [Line Items] Total Related party payable Annual compensation Other accounts payable Other liability Right-of-use asset, net Current lease liabilities Non-current lease liabilities Total operating lease liabilities March 31, 2026 Total lease payments Less: imputed interest Present value of lease liabilities Payment for leasing costs Lease expense Lease expiration date Operating lease expense Acquisition payable Debt converted into equity Stock, Class of Stock [Table] Class of Stock [Line Items] Stock issued new, shares Proceeds from sale of stock Debt converted, amount converted Debt converted, shares issued Conversion of stock, description Voting rights, description Shares authorized for issuance under the plan Shares available for grant Stock options outstanding Stock options awards Subscriptions Received [Member] MEI Acquisition [Member] Implementation Fees Services Point In Time [Member] Millenium EBS Inc. [Member] Stock Exchange And Acquisition Agreement [Member] MEI [Member] Millenium Payment Hub Platform [Member] Internal Use Software Development [Member] Prepaid Debit And Credit Card Software [Member] Other Intangible Asset Payment Hub [Member] Millenium Consultants, Inc. [Member] Employment Agreement [Member] MEI Selling Shareholder [Member] Aquisition Fee Payable [Member] Office Lease [Member] First Month Payment [Member] Office Lease J Plaza [Member] One Month Rent [Member] Office Lease 2023 [Member] Security Deposit [Member] Office Lease August 2020 [Member] Office Lease October 2020 [Member] 2022 Stock Incentive Plan [Member] Shinto Matthew [Member] Assets, Current Assets Liabilities, Current Liabilities Stockholders' Equity Note, Subscriptions Receivable Equity, Attributable to Parent Equity, Including Portion Attributable to Noncontrolling Interest Liabilities and Equity Operating Expenses [Default Label] Operating Income (Loss) Interest Expense, Nonoperating Nonoperating Income (Expense) Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Shares, Outstanding Other Noncash Income (Expense) Increase (Decrease) in Accounts Receivable Increase (Decrease) in Inventories Increase (Decrease) in Prepaid Expenses, Other Payments to Acquire Software Payments to Acquire Property, Plant, and Equipment Cash Provided by (Used in) Investing Activity, Including Discontinued Operation PaymentsToAcquireRelatedPartyForAcquisitionOfSubsidiary Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Forgone Recovery, Individual Name Outstanding Recovery, Individual Name Awards Close in Time to MNPI Disclosures, Individual Name Trading Arrangement, Individual Name WorkingCapital Accounts Receivable, Allowance for Credit Loss, Current Deferred Revenue, Revenue Recognized Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Business Combination, Recognized Liability Assumed, Other Liability, Current Noncontrolling Interest, Increase from Business Combination Capitalized Cost, Software to be Sold, Leased, or Marketed, Accumulated Amortization Intangible Asset, Finite-Lived, Amortization Expense Debt Conversion, Original Debt, Amount