Operating lease cost Operating Lease, Cost Lease liabilities recognized in the Consolidated Balance Sheet Rights-of-use assets and lease liabilities Operating lease liabilities Operating Lease, Liability Schedule of Maturity Analysis of the Annual Undiscounted Cash Flows for Lease Liabilities [Abstract] Year two Lessee, Operating Lease, Liability, to be Paid, Year Two Less: imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount Related and Nonrelated Parties [Axis] Leases [Abstract] Condensed Balance Sheet Statements, Captions [Line Items] Operating lease liabilities – current Operating lease liabilities – current – related parties Operating Lease, Liability, Current Rights-of-use assets – operating lease Operating lease right-of-use assets Right-of-use assets – Operating lease Operating Lease, Right-of-Use Asset Operating lease liabilities – non-current Operating lease liabilities – non-current – related parties Operating Lease, Liability, Noncurrent Operating lease [Member] Operating Lease Member Condensed Balance Sheet Statement [Table] Prepaid consulting fees Prepaid Consulting Fees Prepaid consulting fees. Right-of-use assets obtained in exchange for new operating lease liabilities Right-of-use assets obtained in exchange for new operation lease liabilities Right-of-Use Asset Obtained in Exchange for Operating Lease Liability Weighted average discount rate Operating Lease, Weighted Average Discount Rate, Percent Related and Nonrelated Parties [Domain] Operating cash flows used in operating leases Operating Lease, Payments Weighted-average remaining lease term Operating Lease, Weighted Average Remaining Lease Term Cost of goods sold Inventory, Finished Goods and Work in Process, Net of Reserves Total of prepaid expenses and other current Prepaid Expense Non-Current Portion Prepaid Expense and Other Assets, Noncurrent Prepayment Prepaid Expense, Current Other Receivables, net Other Receivables Raw materials Inventory, Raw Materials, Gross Finished goods Inventory, Finished Goods, Gross Inventories [Abstract] Schedule of Allowance for Credit Loss [Abstract] Current provision (recoveries) Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) Inventory write-down Provision for inventories Inventory Write-down Prepaid Expenses and Other Current and Non-Current Assets, Net [Abstract] Deferred cost for share-based compensation Deferred Compensation Arrangement with Individual, Compensation Expense Balance at end of the year Balance at beginning of the year Accounts Receivable, Allowance for Credit Loss Schedule of Inventories [Abstract] Schedule Of Allowance For Credit Loss Abstract Accounts receivable, net Accounts receivable, net – related parties, net of credit loss allowance of US$nil and US$nil Total account receivable, net -related parties Accounts and Other Receivables, Net, Current Third Party Third Party Member Total of prepaid expenses and other current Total prepaid expenses and other current assets, net Prepaid Expense and Other Assets Deposit Deposits Assets, Current Schedule of Prepaid Expenses and Other Current Assets [Abstract] Inventories, net Inventories, net Inventory, Net Written off Accounts Receivable, Allowance for Credit Loss, Writeoff Current Portion Prepaid expenses and other current assets, net Prepaid Expense and Other Assets, Current Hong Kong [Member] HONG KONG Geographical [Domain] Geographical [Axis] Schedule of Cash Paid for Income Taxes [Line Items] Schedule of Cash Paid for Income Taxes [Table] Auditor Name Auditor [Line Items] Income Tax Disclosure [Abstract] Zipper Pullers [Member] Zipper Pullers Member Summary of Significant Accounting Policies (Details) [Table] Total Revenues Revenues Revenue by geographic areas Total Revenue Revenues Schedule Of Revenues By Product Categories Abstract Product and Service [Axis] Supplier [Domain] Supplier C [Member] Supplier CMember Customer Concentration Risk [Member] Customer Concentration Risk [Member] Concentration Risk [Table] Customer D [Member] Customer DOne Member Customer [Axis] Concentration Risk Type [Domain] Long-Lived Tangible Asset [Axis] Purchases Benchmark Member Purchases Benchmark Member Product and Service [Domain] EX WORK [Member] EXWORKMember Schedule of Estimated Useful Lives at the Annual Rate [Line Items] Property, Plant, and Equipment [Line Items] Property, Plant and Equipment [Line Items] Schedule of Undiscounted Cash Flow [Line Items] Minimum [Member] Minimum [Member] Statistical Measurement [Axis] CIF [Member] CIFMember Schedule Of Concentrations And Risks Abstract Accounts Receivable [Member] Accounts Receivables Member Concentration Risk [Line Items] CNF/CFR [Member] CNFCFRMember FOB [Member] FOBMember Furniture and Fixtures [Member] Furniture and fixtures [Member] Furniture and Fixtures [Member] Building [Member] Buildings [Member] Building [Member] Concentration Risk Benchmark [Domain] Customer A [Member] Concentration Risk Benchmark [Axis] Supplier D [Member] Supplier DMember Supplier B [Member] Supplier BMember Heat Transfers [Member] Heat Transfers Member Woven Labels and Tapes [Member] Woven Labels And Tapes Member Non-Reflective Film [Member] Non Reflective Film Member Schedule of Revenues by Product Categories [Line Items] Schedule of Revenue by Geographic Areas [Line Items] Summary of Significant Accounting Policies - Schedule of Revenue by Geographic Areas (Details) [Table] Piping [Member] Piping Member Drawcords [Member] Drawcords Member Summary of Significant Accounting Policies [Abstract] Statistical Measurement [Domain] Maximum [Member] Maximum [Member] Customer [Domain] Customer D [Member] Customer DMember Non-Asia [Member] Non Asia Member Schedule Of Subsidiaries Company Abstract Ownership [Axis] Stratum Star Limited (“Stratum Star”) [Member] Stratum Star Limited Stratum Star Member Schedule of Composition of Income Tax Expenses Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Schedule of Deferred Tax Assets, Net Schedule Of Oneoff Tax Reduction Table Text Block Tabular disclosure of one-off tax reduction provided by the Hong Kong government. Property, plant and equipment Property, Plant and Equipment, Policy [Policy Text Block] Commitments and contingencies Commitments and Contingencies, Policy [Policy Text Block] Related Parties Related Parties Policy Text Block Disclosure of accounting policy for related parties. Inventories Inventory, Policy [Policy Text Block] Accounts Receivable Net Accounts Receivable [Policy Text Block] Concentrations and risks Concentration Risk, Credit Risk, Policy [Policy Text Block] Risks and uncertainties Risks And Uncertainties Policy Text Block Disclosure of accounting policy for risks and uncertainties. GENERAL AND ADMINISTRATIVE EXPENSES General And Adminstrative Expenses Text Block The tabular disclosure of general and adminstrative expenses. Revenue [Member] Revenue Benchmark [Member] Revenue Benchmark [Member] Schedule of General and Adminstrative Expenses Schedule Of General And Adminstrative Expenses Table Text Block The tabular disclosure of general and adminstrative expenses. Schedule of Subsidiaries Company [Line Items] Sun Choice Enterprises Limited (“Sun Choice”) [Member] Sun Choice Enterprises Limited Sun Choice Member Leases Lessee, Leases [Policy Text Block] Principal activities Subsidiary of Limited Liability Company or Limited Partnership, Business Purpose Selling and marketing expenses Selling And Marketing Expenses Policy Text Block Disclosure of accounting policy for selling and marketing expenses. Revenue recognition Revenue from Contract with Customer [Policy Text Block] Percentage of effective ownership Subsidiary Of Limited Liability Company Or Limited Partnership Ownership Interests The number of units or percentage investment held in the subsidiary by the limited liability company or limited partnership. Schedule of Subsidiaries Company Schedule of Subsidiary of Limited Liability Company or Limited Partnership, Description [Table Text Block] Earnings per share Earnings Per Share, Policy [Policy Text Block] Impairment of long lived assets Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Accounts Receivable, Net [Abstract] Accounts receivable for third parties Accounts Receivable For Third Parties Accounts receivable for third parties. Accounts receivable for related parties Accounts Receivable For Related Parties Accounts receivable for related parties. CONTINGENCY AND COMMITMENTS Commitments and Contingencies Disclosure [Text Block] Related Party Transactions [Abstract] SUBSEQUENT EVENTS Subsequent Events [Text Block] Cybersecurity Risk Management Processes Integrated [Flag] Cybersecurity Risk Management Processes Integrated [Flag] Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] Cybersecurity Risk Third Party Oversight and Identification Processes [Flag] Capital Stock [Abstract] SHARE-BASED COMPENSATION Share-Based Payment Arrangement [Text Block] Segment Information [Abstract] Basic earnings per share Basic (in Dollars per share) Earnings Per Share, Basic, Total Subsequent Event [Member] Accounts and Financing Receivables [Table] Accounts Receivable, Net [Line Items] Schedule of Accounts Receivable - Third Parties, Net [Line Items] Subsequent Event Type [Axis] Foreign currency translation and transaction and Convenience translation Foreign Currency Transactions and Translations Policy [Policy Text Block] Earning Per Share [Abstract] Net income per share attributable to ordinary shareholders EARNING PER SHARE Earnings Per Share [Text Block] Schedule of General and Administrative Expenses [Abstract] Schedule of Income Tax Expenses Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Contract liabilities Contract Liabilities Policy Text Block Disclosure of accounting policy for contract liabilities. CAPITAL STOCK Equity [Text Block] Share-Based Compensation [Abstract] SEGMENT INFORMATION Segment Reporting Disclosure [Text Block] Schedule of Related Parties Schedule of Related Party Transactions [Table Text Block] Concentration Risk Type [Axis] ACCRUALS AND OTHER CURRENT LIABILITIES Accounts Payable, Accrued Liabilities, and Other Liabilities Disclosure, Current [Text Block] Schedule of Inventories Schedule of Inventory, Current [Table Text Block] Schedule of Accounts Receivable Net Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Exchanges rates for translation Foreign Currency Exchange Rate, Translation Customer revenue Concentration Risk, Customer Contract liabilities, revenue recognized Contract with Customer, Liability, Revenue Recognized J-Long Limited (“JLHK”) [Member] JLong Limited JLHKMember J-Long Trims Vietnam Co., LTD(“JLVN”) [Member] J-Long Trims Vietnam Co., LTD (“JLVN”) [Member] JLong Trims Vietnam Co LTDJLVNMember Date of incorporation Subsidiary of Limited Liability Company or Limited Partnership, Date Schedule of Relationships With Related Parties Schedule Of Relationships With Related Parties Table Text Block Tabular disclosure of relationships with related. Subsidiary of LLC or LP [Table] J-Long Group Limited (the “Company”) [Member] JLong Group Limitedthe Company Member Alpine Eagle Limited (“Alpine Eagle”) [Member] Alpine Eagle Limited Alpine Eagle Member Schedule of Concentrations and Risks Schedules of Concentration of Risk, by Risk Factor [Table Text Block] Incorporated date Entity Incorporation, Date of Incorporation Notes receivable Receivable [Policy Text Block] Fair Value Measurement Fair Value Measurement, Policy [Policy Text Block] Subsequent Event Type [Domain] Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] Cybersecurity Risk Management Positions or Committees Responsible Report to Board [Flag] Schedule of Undiscounted Cash Flow Sales-Type and Direct Financing Leases, Payment to be Received, Maturity [Table Text Block] Cybersecurity Risk Management, Strategy, and Governance [Line Items] Cybersecurity Risk Management Processes Integrated [Text Block] Cybersecurity Risk Management Processes Integrated [Text Block] Schedule of Revenue by Geographic Areas Revenue from External Customers by Geographic Areas [Table Text Block] Schedule of Revenues by Sales Term Disaggregation of Revenue [Table Text Block] Accruals and Other Current Liabilities [Abstract] Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Cybersecurity Risk Management Processes for Assessing, Identifying, and Managing Threats [Text Block] Diluted earnings per share Diluted (in Dollars per share) Earnings Per Share, Diluted, Total Rent [Axis] Rent Axis Monthly Rent One [Member] Monthly Rent One Member Monthly Rent Three [Member] Monthly Rent Three Member Schedule Of Segment Information Abstract Ordinary shares, shares issued (in Shares) Shares issued Common Stock, Shares, Issued Non-controlling interests Equity, Attributable to Noncontrolling Interest Entity Addresses, Address Type [Axis] Business Contact Business Contact [Member] Entity Central Index Key Entity Central Index Key Document Registration Statement Document Registration Statement Elimination of internal transaction [Member] Elimination Of Internal Transaction Member Operating expenses: Operating Expenses [Abstract] Other income (expenses) Other Nonoperating Income (Expense) Interest expenses Interest Income (Expense), Nonoperating Accounts receivable – related parties Increase (Decrease) in Accounts Receivable, Related Parties Prepayment, deposits and other receivable Increase (Decrease) in Prepaid Expense and Other Assets Carpark Lease [Member] Carpark Lease Member Accumulated other comprehensive income/(loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Ordinary shares value Common Stock, Value, Issued Commitments and contingencies Commitments and Contingencies Non-taxable income amount Effective Income Tax Rate Reconciliation, Tax Exempt Income, Amount Related Party Transaction [Axis] Mr. Edwin Chun Yin Wong [Member] Mr Edwin Chun Yin Wong Member Share-based awards Share-Based Payment Arrangement, Expense Audit fee Audit Fee The amount of audit fee. Bank charge Bank Charge The amount of bank charge. Accrued interest payable Interest Payable Interest expense Interest Expense, Debt Repurchase of Common Stock Stock Repurchased During Period, Value Net (loss)/income attributable to non-controlling interest Income (Loss) from Discontinued Operations, Net of Tax, Attributable to Noncontrolling Interest Stock, Class of Stock [Table] Shares redesignated Common Stock Shares Redesignated Common stock shares redesignated. Shares issued redesignated Common Stock Shares Issued Redesignated Common stock shares issued redesignated. Statutory income tax rate amount Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Class of Stock [Axis] Class of Stock [Domain] Commission income from a related party Commission Income From A Related Party Commission income from a related party. Contribution by Non-controlling interest Contribution By Non Controlling Interest Amount of contribution by non-controlling interest. Shared-based awards (in Shares) Shares Issued, Shares, Share-Based Payment Arrangement, after Forfeiture Non-cash operating lease expenses Non Cash Operating Lease Expenses It represents amount of non-cash operating lease expenses. LEASES Lessee, Operating Leases [Text Block] Property, Plant and Equipment [Abstract] Related Party Transaction [Domain] Loan term Debt Instrument, Term Ownership percentage Ownership Percentage Ownership percentage. Payment for rent Rental income Payments for Rent Change in valuation allowance amount Effective Income Tax Rate Reconciliation, Deduction, Amount, Total Related Party Transactions - Schedule of Relationships With Related Parties (Details) [Table] Address Type [Domain] Document Information [Line Items] Document Type Document Type Investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Ex Transition Period Entity Ex Transition Period Document Financial Statement Error Correction [Flag] Document Financial Statement Error Correction [Flag] Entity Shell Company Entity Shell Company Payment for offering costs Payments of Stock Issuance Costs Document Information [Table] Guangdong Rongmian Accessories Technology Co., Ltd. [Member] Guangdong Rongmian Accessories Technology Co Ltd Member Vote per share Number Of Vote Per Share Number of vote per share. Equity Components [Axis] INVENTORIES, NET Inventory Disclosure [Text Block] Diluted (in Shares) Weighted average diluted shares Weighted Average Number of Shares Outstanding, Diluted Accumulated other comprehensive income/(loss) AOCI Attributable to Parent [Member] Equity Component [Domain] Balance Balance Total shareholders’ equity Equity, Including Portion Attributable to Noncontrolling Interest Dividend declared Dividends, Cash Statement of Cash Flows [Abstract] Total account payable – related parties Accounts Payable Company granted shares Share-Based Compensation Arrangement by Share-Based Payment Award, Options, Grants in Period, Gross Related Party [Member] Related Party Related Party [Member] Long-Lived Tangible Asset [Domain] Number of reporting segments Number of Reportable Segments Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax Net income Total Segment net income (loss) Net income attributable to ordinary shareholders Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Depreciation Depreciation expenses Depreciation Gain on disposal of property, plant and equipment Gain (Loss) on Disposition of Property Plant Equipment Class A Class A Ordinary Shares Class A Ordinary Shares [Member] Common Class A [Member] Class B Class B Ordinary Shares Class B Ordinary Shares [Member] Common Class B [Member] Share re-designation (in Shares) Share Re Designation In Shares Number of shares share re-designation. Share re-designation Share Re-Designation Amount of share re-designation. Balance (in Shares) Balance (in Shares) Shares, Outstanding, Beginning Balance Ordinary share Ordinary Shares [Member] Common Stock [Member] Income tax calculated at statutory rate Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Capital expenditure Capital Expenditure Abstract Long-lived assets Long Lived Assets Abstract Amounts due from related parties offset against accounts payable between Danny Wong and a supplier Amounts Due From Related Parties Offset Against Accounts Payable Represents the amounts due from related parties offset against accounts payable. Description of Business and Basis of Presentation [Abstract] Allowance for credit loss Deferred Tax Asset, Tax Deferred Expense, Reserve and Accrual, Accounts Receivable, Allowance for Credit Loss Mr. Danny Tze Ching Wong [Member] Mr Danny Tze Ching Wong Member Office and Warehouse [Member] Office And Warehouse Member RentDomain [Domain] Monthly Rent Two [Member] Monthly Rent Two Member Monthly Rent Four [Member] Monthly Rent Four Member Everlink Enterprises Limited [Member] Everlink Enterprises Limited Member Lease Contractual Term [Axis] Due from related parties Total due from related parties Other Receivables, Net, Current Property, plant and equipment, net Total property, plant and equipment, net Property, Plant and Equipment, Net Operating lease liabilities – current Operating Lease Liabilities Current Other Amount of other operating lease liabilities current. Accounts payable – third parties Accounts Payable, Current Non-cash item adjustments: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Noncash Item [Abstract] Cash and cash equivalents and restricted cash as of beginning of the year Cash and cash equivalents and restricted cash as of the end of the year Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Supplementary Cash Flows Information Supplemental Cash Flow Elements [Abstract] Cash received from interest Cash Received From Interests Cash received from interest. Supplementary Schedule of Non-Cash Investing and Financing Activities Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Non-taxable income percent Effective Income Tax Rate Reconciliation, Nondeductible Expense, Percent, Total Total current liabilities Liabilities, Current Bank loans – non-current Non-current portion of long-term borrowings Loans Payable to Bank, Noncurrent Segment assets Segment Assets Abstract Segment net income (loss) Segment Net Income Loss Abstract General and Administrative Expenses Other Expenses [Abstract] Gross profit Total Gross Profit Gross Profit Ordinary shares, par value (in Dollars per share) Common Stock, Par or Stated Value Per Share Rental income Rental Income, Nonoperating Cover [Abstract] Two Consultants [Member] Two Consultants Member Four Consultants [Member] Four Consultants Member One Consultants [Member] One Consultants Member Total other income (expense) Nonoperating Income (Expense) Statement [Table] Tax credit allowed by Hong Kong government percent Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Percent Cash paid for interest Interest Paid, Excluding Capitalized Interest, Operating Activity Income from operations Operating Income (Loss) Cost of sales Cost of Product and Service Sold Effective Income Tax Rate Reconciliation [Line Items] Effective tax rate percent Profits tax at a rate Effective Income Tax Rate Reconciliation, Percent, Total Income Tax Jurisdiction [Axis] Income Tax Jurisdiction [Domain] PREPAID EXPENSES AND OTHER CURRENT AND NON-CURRENT ASSETS, NET Other Current Assets [Text Block] Insurance expenses General Insurance Expense Payroll expense Payroll Expense The amount of payroll expense. Depreciation expenses Depreciation, Nonproduction Office expense Office Expense The amount of office expense. Staff welfare Labor and Related Expense Payment for acquiring property, plant and equipment Payments to Acquire Property, Plant, and Equipment Proceeds from disposal of property, plant and equipment Proceeds from Sale of Property, Plant, and Equipment Cash provided by/(used in) investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Repayment of bank loans Repayments of Bank Debt CECL provision (recoveries) CECL Provision Recoveries CECL provision (recoveries). Impairment loss for marketable debt securities Impairment Loss For Marketable Debt Securities Impairment loss for marketable debt securities. Entity Emerging Growth Company Entity Emerging Growth Company ICFR Auditor Attestation Flag ICFR Auditor Attestation Flag Comprehensive income attributable to non-controlling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Current assets: Assets, Current [Abstract] Deferred tax assets: Deferred Tax Assets, Net [Abstract] Accounts payable – third parties Increase (Decrease) in Other Accounts Payable Statement [Line Items] Charm Vision Holdings Limited [Member] Charm Vision Holdings Limited Member Related Party Transactions [Line Items] Related Party Transaction [Line Items] Schedule of Related Parties [Line Items] Change in valuation allowance percent Effective Income Tax Rate Reconciliation, Deduction, Percent, Total Total Long-lived assets Total Longlived Assets Total Long-lived assets. Schedule Of Relationships With Related Parties Abstract Retained earnings Retained Earnings (Accumulated Deficit) Income taxes payable Taxes Payable, Current Loans from related parties Loans Payable, Current TOTAL ASSETS Total Segment assets Assets Accounts payable – related parties Other Notes Payable, Current Deferred tax assets Deferred Income Tax Assets, Net Bank loans – current Current portion of long-term borrowings Loans Payable to Bank, Current Hong Kong Trading [Member] Hong Kong Trading Member Schedule of Segment Information [Line Items] TOTAL LIABILITIES Liabilities Shareholders’ equity Equity, Attributable to Parent [Abstract] Additional Paid-in Capital Additional Paid in Capital, Common Stock Dividends declared and offset against amounts due from related parties Dividends Declared And Offset Against Amounts Due From Related Parties Amount of dividends declared and offset against amounts due from related parties. ACCOUNTS RECEIVABLE, NET Accounts and Nontrade Receivable [Text Block] Additional Paid-in Capital Additional Paid-in Capital [Member] Weighted average number of ordinary shares used in computing net income per share Weighted Average Number of Shares Outstanding, Basic [Abstract] Statement of Stockholders' Equity [Abstract] Foreign currency exchange gain Gain (Loss), Foreign Currency Transaction, before Tax Contract liabilities Increase (Decrease) in Contract with Customer, Liability Notes receivable Increase (Decrease) in Accounts and Other Receivables Corporate [Member] Corporate Segment [Member] Vietnam Manufacturing [Member] Vietnam Manufacturing Member Entertainment expenses Entertainment Expenses The amount of entertainment expenses. Mega Image Production Limited [Member] Mega Image Production Limited Member Relationship to the Company Related Party Relationship To The Company Related party relationship with the company. Schedule Of Related Parties Abstract Document Annual Report Document Annual Report Document Period End Date Document Period End Date Environmental Remediation Site [Axis] Deerhill Avenue [Member] Deerhill Avenue Member Foreign currency translation adjustments Temporary Equity, Foreign Currency Translation Adjustments Total long-term debt Long-Term Debt, Current Maturities Schedule of Annual Maturities of Long-Term Debt [Abstract] Net book value Property, Plant, and Equipment, Fair Value Disclosure Property, Plant and Equipment [Table] Total undiscounted rental income Sales-Type and Direct Financing Leases, Payment to be Received, Total Year Four and Thereafter Sales-Type and Direct Financing Leases, Payment to be Received, after Year Five Year Four Sales-Type and Direct Financing Leases, Payment to be Received, Year Four Year Three Sales-Type and Direct Financing Leases, Payment to be Received, Year Three Shan Tong Road [Member] Shan Tong Road Member Schedule of Accrued and Other Current Liabilities [Abstract] Asset Class [Domain] Number of share split Stock Issued During Period, Shares, Stock Splits Schedule Of Property Plant And Equipment Abstract Schedule Of Bank Loans Abstract Long-Term Debt, Type [Axis] Leasehold improvement Member] Leasehold Improvements [Member] Hang Seng Bank Limited [Member] Hang Seng Bank Limited Member Long-Term Debt, Type [Domain] Construction in progress [Member] Construction in Progress [Member] Property, plant and equipment, gross Property, Plant and Equipment, Gross Asset Class [Axis] Capital Stock [Line Items] Long-term borrowings: Debt Securities [Abstract] Debt Instrument [Line Items] Divided shares Common Stock Dividends, Shares Others Other Selling and Marketing Expense Transportation expenses Transportation Expenses Represent the amount of transportation expenses. Total selling expenses Selling and marketing expenses Selling and Marketing Expense Early redemption of investment in marketable debt securities Early redemption of investment in marketable debt securities, net of tax Redemption Of Investment In Marketable Debt Securities Net Of Tax Amount of redemption of investment in marketable debt securities, net of tax. Unrealized loss on investment in marketable debt securities, balance at ending Unrealized loss on investment in marketable debt securities, balance at beginning Unrealized Loss On Investment In Marketable Debt Securities Amount of unrealized loss on investment in marketable debt securities. Payroll expenses Payroll Expenses Represent the amount of payroll expenses. Schedule of Selling Expenses [Abstract] Total [Member] Total Member Mortgage [Member] Mortgage Member Mortgage Three [Member] Mortgage Three Member Before tax amount [Member] Before Tax Amount Member Net-of-tax [Member] Netof Tax Member Schedule of Accumulated Other Comprehensive Loss [Line Items] Schedule of Accumulated Other Comprehesive Loss [Line Items] Commission expenses Sales Commissions and Fees Total undiscounted lease payments Lessee, Operating Lease, Liability, to be Paid Year three Lessee, Operating Lease, Liability, to be Paid, Year Three Year four Lessee, Operating Lease, Liability, to be Paid, Year Four After Year five Lessee, Operating Lease, Liability, to be Paid, after Year Five Year one Lessee, Operating Lease, Liability, to be Paid, Year One Lease, Cost [Abstract] Cash paid for amount included in the measurement of lease liabilities: Cash Paid For Amounts Included In Measurement Of Lease Liabilities Abstract Auditor Firm ID Auditor Location Auditor Opinion [Text Block] Income/(loss) before income taxes Income before income tax Income before tax expense Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest, Total Accounts receivable – third parties Accounts receivable, gross — related parties Accounts Receivable, before Allowance for Credit Loss, Current Less: allowance for credit loss Net of credit loss allowance Accounts Receivable, Allowance for Credit Loss, Current Income Tax Paid, after Refund Received [Abstract] Hong Kong taxes Cash paid(refund) for income tax Income Tax Paid, after Refund Received, Total Schedule of Income Before Income Taxes [Table] Vietnam [Member] VIET NAM Cayman & BVI [Member] BRITISH INDIAN OCEAN TERRITORY Schedule of Income Before Income Taxes [Line Items] Customer One [Member] Customer One Member Customer Three [Member] Customer Three Member DAP [Member] DAPMember Total revenue percentage Concentration Risk, Percentage All Currencies [Domain] Asia [Member] Asia [Member] China [Member] CHINA Customer Two [Member] Customer Two Member Currency [Axis] Hong Kong [Member] Hong Kong, Dollars Summary of Significant Accounting Policies [Line Items] Protection per depositor (in Dollars) Protection Per Depositor Amount of maximum protection per depositer. Schedule of Revenues by Sales Term [Line Items] Segment Reporting, Revenue from External Customer, Product and Service [Table] Fabrics [Member] Fabrics Member Sewing Badges [Member] Sewing Badges Member Others [Member] Others Revenues Member Schedule Of Revenue By Geographic Areas Abstract Schedule Of Revenues By Sales Term Abstract Disaggregation of Revenue [Table] Customer C [Member] Customer CMember Supplier E [Member] Supplier EMember Number of days for normal payment terms Number Of Days For Normal Payment Terms Number of days for normal payment terms. Property, plant and equipment, salvage value, percentage Property, Plant and Equipment, Salvage Value, Percentage Supplier [Axis] Supplier Concentration Risk [Member] Supplier Concentration Risk [Member] Summary of Significant Accounting Policies - Schedule of Estimated Useful Lives at the Annual Rate (Details) [Table] Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration] Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration] Motor vehicles [Member] Motor Vehicles Member Plant and machinery [Member] Property, Plant and Equipment [Member] Accumulated Other Comprehensive Loss [Abstract] SELLING EXPENSES Selling Expenses Text Block The entire disclosure for information about selling expenses. INCOME TAX Income Tax Disclosure [Text Block] Schedule of Allowance for Credit Loss Accounts Receivable, Allowance for Credit Loss [Table Text Block] Schedule of Income Before Income Taxes Schedule of Income before Income Tax, Domestic and Foreign [Table Text Block] Schedule of Estimated Useful Lives at the Annual Rate Schedule Of Estimated Depreciation Rate Table Text Block Tabular disclosure of the estimated depreciation rate. Schedule of Accrued and Other Current Liabilities Schedule of Accounts Payable and Accrued Liabilities [Table Text Block] Owned subsidiary Percentage of effective ownership Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest Description of Business and Basis of Presentation [Line Items] Schedule of Accumulated Other Comprehensive Loss Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Selling Expenses [Abstract] Selling Expenses Schedule of Deferred Tax Assets and Liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Schedule of Prepaid Expenses and Other Current Assets Schedule of Other Current Assets [Table Text Block] Exchange rate translation (in Dong) Goodwill, Foreign Currency Translation, Gain (Loss) Schedule of Revenues by Product Categories Revenue from External Customers by Products and Services [Table Text Block] Schedule of Computation of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Weighted average basic shares Basic (in Shares) Weighted Average Number of Shares Outstanding, Basic Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Cybersecurity Risk Management Expertise of Management Responsible [Text Block] Cybersecurity Risk Role of Management [Text Block] Cybersecurity Risk Role of Management [Text Block] Cybersecurity Risk Management Third Party Engaged [Flag] Cybersecurity Risk Management Third Party Engaged [Flag] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Flag] Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Cybersecurity Risk Process for Informing Management or Committees Responsible [Text Block] Schedule of Property, Plant and Equipment Property, Plant and Equipment [Table Text Block] Cybersecurity Risk Management, Strategy, and Governance [Abstract] Use of estimates Use of Estimates, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Subsequent Events [Abstract] RELATED PARTY TRANSACTIONS Related Party Transactions Disclosure [Text Block] Contingency and Commitments [Abstract] Place of incorporation Subsidiary of Limited Liability Company or Limited Partnership, State General and administrative expenses Selling, General and Administrative Expenses, Policy [Policy Text Block] Cost of sales Cost of Goods and Service [Policy Text Block] Recent accounting pronouncements New Accounting Pronouncements, Policy [Policy Text Block] Income taxes Income Tax, Policy [Policy Text Block] Ownership [Domain] Description of Business and Basis of Presentation (Details) [Table] Cybersecurity Risk Management, Strategy, and Governance [Table] Schedule of Rights-of-Use Assets and Lease Liabilities Condensed Balance Sheet [Table Text Block] Schedule of Maturity Analysis of the Annual Undiscounted Cash Flows for Lease Liabilities Lessee, Operating Lease, Liability, to be Paid, Maturity [Table Text Block] Schedule of Lease Cost Lease, Cost [Table Text Block] Contract liabilities Contract with Customer, Liability Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] Cybersecurity Risk Process for Informing Board Committee or Subcommittee Responsible for Oversight [Text Block] ACCUMULATED OTHER COMPREHENSIVE LOSS Comprehensive Income (Loss) Note [Text Block] Schedule of Cash Paid for Income Taxes Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Schedule of Selling Expenses Schedule Of Selling Expenses Table Text Block Tabular disclosure of selling expenses. Schedule of Segment Information Schedule of Segment Reporting Information, by Segment [Table Text Block] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block] Cybersecurity Risk Materially Affected or Reasonably Likely to Materially Affect Registrant [Text Block] Accounts receivable – third parties Increase (Decrease) in Accounts Receivable Professional expenses Professional Fees Inventory write-down Deferred Tax Assets, Inventory Schedule of Current and Deferred Portion of Income Tax Expenses [Abstract] Total General and Administrative expenses General and administrative expenses General and administrative expenses General and Administrative Expense Total Selling expenses Selling, General and Administrative Expense Less: Valuation allowance Deferred Tax Assets, Valuation Allowance Tax loss carryforwards Tax Credit Carryforward, Amount Share-based Compensation [Line Items] Share-Based Compensation Arrangement by Share-Based Payment Award [Line Items] One Employee [Member] One Employee Member Three Consultants [Member] Three Consultants Member Tax credit allowed by Hong Kong government amount Effective Income Tax Rate Reconciliation, Foreign Income Tax Rate Differential, Amount J-Long Trims Pte. Ltd. [Member] JLong Trims Pte Ltd Member Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Security Exchange Name Security Exchange Name Title of 12(b) Security Title of 12(b) Security Local Phone Number Local Phone Number Total due to related parties Due to related parties Other Liabilities, Current Total revenue from a related party Revenue From Related Party Represent the value for revenue from related party. Contract liabilities Contract with Customer, Liability, Current Accruals and other current liabilities Accounts Payable and Other Accrued Liabilities, Current Current liabilities: Liabilities, Current [Abstract] Total non-current assets Assets, Noncurrent Deposit Deposits Assets, Noncurrent Property, plant and equipment Deferred tax asset Property, plant and equipment The amount of deferred tax property plant and equipment. Lease expenses Operating Lease, Expense Effective Income Tax Rate Reconciliation [Table] DESCRIPTION OF BUSINESS AND BASIS OF PRESENTATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] Percentage of income tax reduction Income Tax Reduction Percentage of income tax reduction. Shared-based awards Stock Issued During Period, Value, Other Total Capital expenditure Capital Expenditures Incurred but Not yet Paid Statutory income tax rate percent Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Capital Stock (Details) [Table] Cayman Islands [Member] CAYMAN ISLANDS Change in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Derivative Instrument [Axis] Two-Tiered Profits Tax [Member] Two Tiered Profits Tax [Member] Segments [Domain] Loan from related parties Proceeds from Related Party Debt Due to related parties Increase (Decrease) in Due to Other Related Parties, Current Inventories Increase (Decrease) in Inventories Repayment to related parties Repayments of Related Party Debt Proceeds from contributions by noncontrolling interests Proceeds From Contributions By Noncontrolling Interests Amount of cash inflow from contributions by noncontrolling interests. Cash (used in)/provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Net change in cash and cash equivalents and restricted cash Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Related Party Transaction [Table] Accounts receivable, net – third parties, net of credit loss allowance of US$22,794 and US$22,794 Accounts Receivable, after Allowance for Credit Loss, Current Lease Contractual Term [Domain] Credit loss Provision for Other Credit Losses Income Statement [Abstract] Ordinary shares, shares outstanding (in Shares) Shares outstanding Common Stock, Shares, Outstanding Ordinary shares, shares authorized (in Shares) Shares authorized Common Stock, Shares Authorized J-Long Vietnam Company Limited [Member] JLong Vietnam Ltd Member Xsafe Limited [Member] Xsafe Limited Member J-Long Group Ltd [Member] JLong Group Ltd Member New Sole (Shanghai) Technology Ltd [Member] New Sole Shanghai Technology Ltd Member Related Party Transactions (Details) [Table] License expenses Taxes and Licenses Entity Address, Postal Zip Code Entity Address, Postal Zip Code Tax effect of non-deductible expenditure Effective Income Tax Rate Reconciliation, Nondeductible Expense, Amount Cash and cash equivalents Cash and Cash Equivalent Rate differences in various jurisdictions amount Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Income Tax (Details) [Table] PROPERTY, PLANT AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Bank Loans [Abstract] Inventory impairment provision Inventory Impairment Provision Inventory impairment provision Miscellaneous expenses Taxes, Miscellaneous Document Accounting Standard Document Accounting Standard Issuance of ordinary share upon the completion of IPO, net of issuance cost (in Shares) Stock Issued During Period, Shares, New Issues Operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Travelling expense Travel and Entertainment Expense Schedule of One-off Tax Reduction [Line Items] Deferred tax liabilities Deferred Tax Liabilities, Gross Guanrong Technology (Shaoguan) Co., Ltd. [Member] Guanrong Technology (Shaoguan) Co., Ltd. [Member] Revenue Revenues [Abstract] Cost of sales Cost Of Sales Abstract Gross Profit Gross Profit [Abstract] Proceeds from redemption of marketable debt securities Proceeds from Sale and Maturity of Debt Securities, Available-for-Sale Financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Total non-current liabilities Liabilities, Noncurrent Operating lease liabilities – non-current Operating Lease Liabilities Noncurrent Others The amount of operating lease liabilities – non-current. Non-current liabilities Liabilities, Noncurrent [Abstract] Repurchase of treasury stock Payments for Repurchase of Equity, Total Proceeds from bank loans Proceeds from Bank Debt Treasury stock Treasury Stock, Common, Value Issuance of ordinary share upon the completion of IPO, net of issuance cost Stock Issued During Period, Value, New Issues Treasury shares Treasury Stock, Common [Member] Price per share Share-Based Compensation Arrangements by Share-Based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Total deferred tax assets Deferred tax assets Deferred Tax Assets, Gross Impairment provision for marketable debt securities Deferred Tax Assets Impairment Provision For Marketable Debt Securities Amount of impairment provision for marketable debt securities. Income Tax [Line Items] Income tax expense (in Dollars) Income tax expense Income tax expense Income Tax Expense (Benefit) Jiaxing Newsole Reflective Material Co., Ltd. [Member] Jiaxing Newsole Reflective Material Co Ltd Member Ms. Lui Wai Fun [Member] Ms Lui Wai Fun Member Contact Personnel Name Contact Personnel Name Rate differences in various jurisdictions percent Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Derivative Contract [Domain] Interest rate Debt Instrument, Interest Rate, Stated Percentage Operating lease term Lessee, Operating Lease, Term of Contract BANK LOANS Debt Disclosure [Text Block] Net deferred tax assets Deferred Tax Assets, Net Schedule of Unrecognized Tax Benefit [Abstract] Current income tax expenses Current Income Tax Expense (Benefit) Schedule of Income Tax Expenses [Abstract] Deferred income tax expense (recovery) Deferred Income Tax Expense (Benefit) HK and Cayman [Member] Hong Kong and Cayman [Member] HK and Vietnam [Member] Hong Kong and Vietnam [Member] Others amount Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount Others percent Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Significant Accounting Policies [Text Block] Amendment Flag Amendment Flag Authorized share capital (in Dollars) Authorized Share Capital Amount Authorized share capital. Reverse Stock Split [Member] Reverse Stock Split Member Tax effect of deductible temporary difference Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Income Tax - Schedule of One-off Tax Reduction (Details) [Table] Share-Based Compensation (Details) [Table] Current Fiscal Year End Date Current Fiscal Year End Date Document Fiscal Year Focus Document Fiscal Year Focus Document Shell Company Report Document Shell Company Report Entity Registrant Name Entity Registrant Name Document Fiscal Period Focus Document Fiscal Period Focus Entity Address, Address Line One Entity Address, Address Line One Entity Address, City or Town Entity Address, City or Town 2024 Equity Incentive Plan [Member] Equity Incentive Plan Member Unrealized loss on Securities Investment Gain (Loss) on Investments Retained earnings Retained Earnings [Member] Non- controlling Interest Noncontrolling Interest [Member] CODM description Segment Reporting, CODM, Profit (Loss) Measure, How Used, Description Total purchase from related parties Purchase Obligation Total operating expenses Operating Expenses Other income (expenses): Nonoperating Income (Expense) [Abstract] Total current assets Assets, Current Notes receivable Financing Receivable, after Allowance for Credit Loss Investment in marketable debt securities Marketable Securities, Current Deferred income tax expense (recovery) Deferred Income Tax Expenserecovery Deferred income tax expense (recovery) TOTAL LIABILITIES AND SHAREHOLDERS’ EQUITY Liabilities and Equity Statement of Financial Position [Abstract] Schedule Of One Off Tax Reduction Abstract Due from related parties Increase (Decrease) Due from Other Related Parties Accounts payable – related parties Increase (Decrease) in Accounts Payable, Related Parties Comprehensive income attributable to ordinary shareholders Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Total comprehensive income attributable to J-LONG GROUP LIMITED Comprehensive Income (Loss), Net of Tax, Attributable to Parent Other comprehensive income/(loss) Other Comprehensive Income (Loss), Tax [Abstract] Foreign currency translation adjustments Other Comprehensive Income (Loss), Foreign Currency Transaction and Translation Adjustment, Net of Tax Share Split [Member] Share Split Member Accruals, and other current liabilities Increase (Decrease) in Accrued Liabilities and Other Operating Liabilities Loss from early redemption of marketable debt securities Gain (Loss) on Sale of Investments Cash provided by/(used in) operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Effect of exchange rate changes on cash Effect of Exchange Rate on Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Net income attributable to J-LONG GROUP LIMITED Unrealized gain (losses) on investment in marketable debt securities, net of tax OCI, Debt Securities, Available-for-Sale, Unrealized Holding Gain (Loss), before Adjustment, after Tax Total other comprehensive income Other Comprehensive Income (Loss), Net of Tax Advance from related parties Proceeds From Advance From Related Parties It represents amount of related parties advance. Income tax payable Increase (Decrease) in Income Taxes Payable Lease liabilities – operating lease Increase (Decrease) in Operating Lease Liability Payment of dividend Payments of Dividends Proceeds from issuance of common stock, net of issuance costs Proceeds from Issuance of Common Stock Document Transition Report Document Transition Report Entity File Number Entity File Number Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Entity Address, Address Line Two Entity Address, Address Line Two Entity Address, Country Entity Address, Country City Area Code City Area Code Contact Personnel Email Address Contact Personnel Email Address Trading Symbol Trading Symbol Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding Entity Voluntary Filers Entity Voluntary Filers Entity Interactive Data Current Entity Interactive Data Current Total Cost of sales Cost of Revenue J-Long Vietnam Company Limited [Member] JLong Vietnam Company Limited Member Administrative service provided by related party Administrative Service To Related Party Administrative service from related party. Schedule of Segment Reporting Information, by Segment [Table] Segments [Axis] Mortgage Two [Member] Mortgage Two Member Mortgage Four [Member] Mortgage Six [Member] Mortgage Six Member [Member] Property, Plant and Equipment (Details) [Table] Environmental Remediation Site [Domain] Danny Wong [Member] Danny Wong Member Type Long- Term Borrowings Type Long-term borrowings. Interest rate Long-Term Debt, Weighted Average Interest Rate, at Point in Time Less: accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Maturity dates Debt Instrument, Maturity Date, Description Year One Sales-Type and Direct Financing Leases, Payment to be Received, Year One Year Two Sales-Type and Direct Financing Leases, Payment to be Received, Year Two Share repurchase program, authorized amount Share Repurchase Program, Authorized, Amount Stock Repurchased During Period, Shares Stock Redeemed or Called During Period, Value 2029 Long-Term Debt, Maturity, Year Three 2027 Long-Term Debt, Maturity, Year One Other payables Other Accounts Payable and Accrued Liabilities Borrowings Loans Payable to Bank 2030 Long-Term Debt, Maturity, Year Four Income tax (expense) or benefit [Member] Income Tax Expense Or Benefit Member Sale of Stock [Axis] Sale of Stock [Domain] Reverse stock split Stockholders' Equity, Reverse Stock Split Total Accounts Payable and Accrued Liabilities, Current Schedule Of Accumulated Other Comprehesive Loss Abstract 2028 Long-Term Debt, Maturity, Year Two Accrued expenses Accrued Liabilities, Current Litigation expense Litigation Settlement, Fee Expense The Hongkong & Shanghai Banking Corporation Ltd [Member] Property One [Member] Property Two [Member] Authorized share capital (in Dollars) Capital Units, Net Amount Share based compensation Share-Based Payment Arrangement, Noncash Expense Marketing and Promotion expenses Marketing and Advertising Expense 2031 and Thereafter Long-Term Debt, Maturity, after Year Five Mortgage Five [Member] Mortgage Five Member Deposit Received Deposit Received It represents deposits received. Accumulated Other Comprehensive Income (Loss) [Table] Schedule of Undiscounted Cash Flow [Abstract] Plant and machinery [Member] Machinery and Equipment [Member] Motor vehicles [Member] Vehicles [Member] Schedule of Long-Term Debt Instruments [Table] Useful Life, Lease Term [Member]