Entity Central Index Key Entity [Domain] Entity Registrant Name Legal Entity [Axis] EBP 002 EBP 002 [Member] Total additions EBP, Change in Net Asset Available for Benefit, Increase, Total Distributions to participants EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Administrative expenses EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Total deductions EBP, Change in Net Asset Available for Benefit, Decrease, Total Net increase in net assets EBP, Change in Net Asset Available for Benefit, Increase (Decrease), Total Additions: EBP, Change in Net Asset Available for Benefit, Increase (Decrease) [Abstract] Deductions: EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Statements of Net Assets Available for Benefits [Abstract] Statements of Net Assets Available for Benefits [Table] EBP, Statement of Net Asset Available for Benefit [Table] Statements of Net Assets Available for Benefits [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] Total investments EBP, Investment, Excluding Plan Interest in Master Trust, Fair and Contract Value Investments: EBP, Investment, Fair Value [Abstract] Receivables: EBP, Receivable [Abstract] Notes receivable from participants EBP, Participant Contribution, Receivable Total receivables EBP, Receivable, Total Net assets available for benefits Net assets available for benefits, beginning of year Net assets available for benefits, end of year EBP, Net Asset Available for Benefit, Total Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment, Total Pooled separate account, at fair value Pooled separate account EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Insurance co. general account, at contract value EBP, Investment, Plan Interest in Master Trust, Contract Value Registered investment companies, at fair value Registered investment companies Employee Benefit Plan Investment Registered Investment Companies, at Fair Value Fair value of investment, registered investment companies. Employer stock, at fair value Employer securities Employee Benefit Plan Investment Employer stock, at fair value Fair value of investment, of employer stock. Investment income: EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Other interest EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Investment Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] General Description of the Plan [Abstract] EBP, Description of Plan [Table] General Description of the Plan [Line Items] EBP, Description of Plan [Line Items] General Description of the Plan EBP, Description of Plan [Text Block] Basis of accounting EBP, Basis of Accounting [Policy Text Block] Use of estimates EBP, Use of Estimate [Policy Text Block] Investment valuation and income recognition EBP, Investment [Policy Text Block] Contributions EBP, Contribution [Policy Text Block] Notes receivable from participants EBP, Note Receivable from Participant [Policy Text Block] Administrative expenses EBP, Expense [Policy Text Block] Distributions Employee Benefit Plan Distributions [Policy Text Block] Disclosure of accounting policy for distributions. Recent accounting pronouncements Employee Benefit Plan Recent accounting pronouncements [Policy Text Block] Disclosure of accounting policy for recent accounting pronouncements. Investment Contract with Insurance Company [Abstract] Investment Contract with Insurance Company [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] Investment Contract with Insurance Company [Line Items] EBP, Fully Benefit-Responsive Investment Contract [Line Items] Investment Contract with Insurance Company EBP, Fully Benefit-Responsive Investment Contract [Text Block] Fair Value Measurements [Abstract] Fair Value Measurements [Table] EBP, Investment, Fair Value and NAV [Table] Fair Value Measurements [Line Items] Schedule of Fair Value Hierarchy, the Plan’s Assets at Fair Value [Line Items] EBP, Investment, Fair Value and NAV [Line Items] Fair Value Measurements [Text Block] EBP, Investment, Fair Value and NAV [Text Block] Schedule of Fair Value Hierarchy, the Plan’s Assets at Fair Value EBP, Investment, Fair Value and NAV [Table Text Block] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value, Inputs, Level 1 Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 Fair Value, Inputs, Level 2 [Member] Party in Interest Transactions [Abstract] Party in Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] Party in Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Party in Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] Magyar Bank 401(k) Profit Sharing Plan [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] Magyar Bank 401(k) Profit Sharing Plan [Abstract] EBP, Schedule of Asset Held for Investment [Table] Schedule of Profit Sharing Plan EBP, Schedule of Asset Held for Investment [Text Block] Schedule of Profit Sharing Plan [Line Items] EBP, Investment, Issuer Name [Extensible Enumeration] EBP, Investment, Current Value, Type [Extensible Enumeration] Current Value EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Investment, Identifier [Axis] EBP, Asset Held for Investment, Plan Interest in Master Trust, Current Value EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution EBP, Asset Held for Investment, Total EBP, Asset Held for Investment, Total EBP, Asset Held for Investment, Party-in-Interest [true false] EBP, Asset Held for Investment, Participant Loan, Interest Rate Interest rates on loans percentage Statistical Measurement [Axis] Statistical Measurement [Domain] Maximum Maximum [Member] Minimum Minimum [Member] Entity Tax Identification Number Amendment Flag Cover [Abstract] Document Information [Line Items] Document Information [Table] Document Period End Date Document Title Document Type Eligible compensation EBP, Employer Contribution, Participant Compensation Matched, Percentage Discretionary matching contributions percentage EBP, Employer Contribution, Matching Percentage Employees’ elective contributions Employee Benefit Plan Employer Elective Contributions Participant Compensation Matched Percentage Percentage of Employee Benefit Plan Employer Elective Contributions Participant Compensation Matched. Employer contributions Employer EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Participant accounts, value EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Individual participant accounts EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Contribution vested percentage EBP Defined Contribution Plan Employer Matching Contribution Vesting Percentage EBP Defined Contribution Plan Employer Matching Contribution Vesting Percentage. Vesting percentage Employee Benefit Plan Vesting Percentage Employee Benefit Plan Vesting Percentage. Forfeited amounts to fund plan administration expenses EBP, Forfeited Nonvested Account, Decrease from Administrative Expense Forfeited funds held by the plan, value EBP, Forfeited Nonvested Account, Decrease from Employer Contribution Forfeitures amounted, value EBP, Forfeited Nonvested Account Vested accounts and assets, percentage Employee Benefit Plan, Plan Termination Vesting Percentage Employee Benefit Plan, Plan Termination Vesting Percentage. Summary of Significant Accounting Policies [Abstract] Summary of Significant Accounting Policies [Table] EBP, Accounting Policy [Table] Summary of Significant Accounting Policies [Line Items] EBP, Accounting Policy [Line Items] Summary of significant accounting policies EBP, Summary of Accounting Policy [Text Block] EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Statement of Changes in Net Assets Available for Benefits [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Statement of Changes in Net Assets Available for Benefits [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Dividend income EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment Total investment gain EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment, Total Employee EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash Rollover EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Total contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution, Total Interest on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Common stock, value EBP, Investment, Excluding Plan Interest in Master Trust, Cost Investment Type [Axis] Investments [Domain] Common Stock EBP, Employer, Common Stock [Member] Tax Status of the Plan [Abstract] Tax Status of the Plan [Table] EBP, Tax Status [Table] Tax Status of the Plan [Line Items] EBP, Tax Status [Line Items] Tax status of the Plan EBP, Tax Status [Text Block] Tax determination letter, date EBP, Tax Determination Letter, Date Tax determination letter, adopted EBP, Tax Determination Letter, Obtained [true false] Concentration of Risks and Uncertainties [Abstract] Concentration of Risks and Uncertainties [Table] EBP, Risk and Uncertainty [Table] Concentration of Risks and Uncertainties [Line Items] EBP, Risk and Uncertainty [Line Items] Concentration of risks and uncertainties EBP, Risk and Uncertainty [Text Block] Subsequent Events [Abstract] Subsequent Events [Table] EBP, Subsequent Event [Table] Subsequent Events [Line Items] EBP, Subsequent Event [Line Items] Subsequent Events EBP, Subsequent Event [Text Block] Magyar Bank 401(k) Profit Sharing Plan EBP Schedule of Profit Sharing Plan [Text Block] Disclosure of information about EBP schedule of profit sharing plan text block. Total investments at fair value EBP, Investment, Fair Value, Total Total investments Investments, Fair Value Investments, Fair Value. EBP, Plan Number EBP, Plan Name Interest rates EBP, Investment, Interest Rate Employer stock common shares, percentage EBP, Investment, Employer, Common Stock, to Total Asset, Percentage Magyar Bancorp, Inc. Stock Employer Security Magyar Bancorp, Inc. BlackRock Registered Investment Company iShs US Agg Bond Index K Fund SEI Trust Company Registered Investment Company AllSpring Spec M Cap Value R6 The American Funds Registered Investment Company American Funds Newworld R6 Dimensional Fund Advisors Registered Investment Company DFA Infl Protected Sec I Fund Registered Investment Company DFA US Sm Cap Growth Instl Fund Fidelity Investments Registered Investment Company Fidelity Adv Sm Cap Val Z Fund Federated Registered Investment Company Fed Hermes Mdt Md Cp Gr R6 Fund Janus International Holding, LLC Registered Investment Company Janus Henderson Blncd N Loomis Sayles Registered Investment Company Loomis Sayles Gl Alloc N Fund MFS Investment Management Registered Investment Company MFS Intl Diversification R6 Fund PGIM Investments PIMCO Funds Registered Investment Company PIMCO Income Institutional Fund Vanguard Registered Investment Company Vanguard Growth Index Adm Fund Registered Investment Company Vanguard Intl Growth Adm Fund Registered Investment Company Vanguard Mid Cap Index Adm Fund Registered Investment Company Vanguard Sm Cap Index Adm Fund Registered Investment Company Vanguard Tgt Rmt Inc Inv Fund Registered Investment Company Vanguard Tgt Rmt 2020 Inv Fund Registered Investment Company Vanguard Tgt Rmt 2025 Inv Fund Registered Investment Company Vanguard Tgt Rmt 2030 Inv Fund Registered Investment Company Vanguard Tgt Rmt 2035 Inv Fund Registered Investment Company Vanguard Tgt Rmt 2040 Inv Fund Registered Investment Company Vanguard Tgt Rmt 2045 Inv Fund Registered Investment Company Vanguard Tgt Rmt 2050 Inv Fund Registered Investment Company Vanguard Tgt Rmt 2055 Inv Fund Registered Investment Company Vanguard Tgt Rmt 2060 Inv Fund Registered Investment Company Vanguard Tgt Rmt 2065 Inv Fund Registered Investment Company Vanguard Tgt Rmt 2070 Inv Fund Registered Investment Company Vanguard Value Index Adm Fund Principal Life Insurance Company Insurance Company General Principal Guaranteed Option Pooled Separate Account Prin LgCp S&P 500 Index SA-Z Registered Investment Company Principal Gov Money Mkt R6 Fund Registered Investment Company PGIM High Yield R6 Fund