Document and Entity Information [Abstract] Document Information [Table] Legal Entity [Axis] Entity [Domain] Represents the Retirement Plan Number 001. E B P 001 [Member] Metropolitan Commercial Bank 401(k) Plan Document Information [Line Items] Document Type Entity Registrant Name Entity Central Index Key Amendment Flag Statements of Net Assets Available for Benefits EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] Statements of Net Assets Available for Benefit EBP, Asset [Abstract] ASSETS EBP, Investment, Fair and Contract Value [Abstract] Investments EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Investments, at fair value EBP, Receivable [Abstract] Receivables EBP, Employer Contribution, Receivable Employer contributions EBP, Participant Contribution, Receivable Participant contributions EBP, Note Receivable from Participant Notes receivable from participants EBP, Receivable Total receivables EBP, Net Asset Available for Benefit Net assets available for benefits, end of year Net assets available for benefits, beginning of year Net assets available for benefits Statement of Changes in Net Assets Available for Benefits EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] Statement of Changes in Net Assets Available for Benefits EBP, Change in Net Asset Available for Benefit, Increase (Decrease) [Abstract] CHANGES TO NET ASSETS EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Contributions EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Excluding Rollover Participant EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash and Noncash Employer EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution, Rollover Rollover EBP, Change in Net Asset Available for Benefit, Increase from Contribution Total contributions EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Investment income EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment Interest and dividends EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Total investment income EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Interest income on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase Total additions EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] DEDUCTIONS FROM NET ASSETS EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Benefits paid to participants EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Administrative expenses EBP, Change in Net Asset Available for Benefit, Decrease Total deductions EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Net increase in net assets available for benefits Description of the Plan EBP, Description of Plan [Table] EBP, Description of Plan [Line Items] Description of the Plan EBP, Description of Plan [Text Block] Description of the Plan Summary of Significant Accounting Policies EBP, Accounting Policy [Table] EBP, Accounting Policy [Line Items] Summary of Significant Accounting Policies EBP, Summary of Accounting Policy [Text Block] Summary of Significant Accounting Policies Related Party and Party-In-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Line Items] Related Party and Party-In-Interest Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] Related Party and Party-In-Interest Transactions Fair Value Measurement EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Line Items] Fair Value Measurement EBP, Investment, Fair Value and NAV [Text Block] Fair Value Measurement No definition available, Plan Termination EBP, Plan Termination [Text Block] Plan Termination Income Tax Status EBP, Tax Status [Table] EBP, Tax Status [Line Items] Income Tax Status EBP, Tax Status [Text Block] Income Tax Status Risks, Uncertainties, and Concentrations EBP, Risk and Uncertainty [Table] EBP, Risk and Uncertainty [Line Items] Risks, Uncertainties, and Concentrations EBP, Risk and Uncertainty [Text Block] Risks, Uncertainties, and Concentrations n/a SECURE Act 2.0 Abstract Disclosure of information about Secure Act 2.0 Secure Act 2.0 [Table] Information relating to Secure Act 2.0 Secure Act 2.0 Line Items The entire disclosure for Secure Act 2.0 Secure Act 2.0 Disclosure [Text Block] Secure Act 2.0 Schedule H, Line 4i - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Line Items] Schedule H, Line 4i - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Text Block] Schedule H, Line 4i - Schedule of Assets (Held at End of Year) EBP, Basis of Accounting [Policy Text Block] Basis of Accounting EBP, Use of Estimate [Policy Text Block] Use of Accounting Estimates EBP, Note Receivable from Participant [Policy Text Block] Notes Receivable from Participants Disclosure of accounting policy for income recognition and investment valuation held by employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Investment Valuation and Income Recognition [Policy Text Block] Investment Valuation and Income Recognition EBP, Contribution [Policy Text Block] Contributions EBP, Payment to Participant [Policy Text Block] Payment of Benefits EBP, Expense [Policy Text Block] Administrative Expenses Tabular disclosure of vesting percentage of participant's interest in company's contributions and earnings to employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Schedule Of Participant's Interest in Contributions And Earnings Vesting Percentage [Table Text Block] Schedule of vesting percentage EBP, Investment, Fair Value and NAV [Table Text Block] Schedule of plan's investment assets at fair value Statistical Measurement [Axis] Statistical Measurement [Domain] Minimum [Member] Minimum Maximum [Member] Maximum EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage Employee contribution (in percentage) EBP, Participant Contribution, Automatic, Deferral Rate Deferral rate EBP, Employer Contribution, Matching Percentage Employer contribution (in percentage) EBP, Employer Contribution, Participant Compensation Matched, Percentage Percentage of participant eligible compensation EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Noncash Profit-sharing contributions EBP, Investment Program, Single Participation Status [Extensible Enumeration] Information by years of service completion by participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Completed Years of Service [Axis] Employee Benefit Plan, Years of Vesting Service [Axis] Years of vesting service completion by participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Completed Years of Service [Domain] Employee Benefit Plan, Years of Vesting Service [Domain] Represents the information pertaining to less than 1 year of service completed. Employee Benefit Plan, Less Than One Year Of Service Completed [Member] 0 - 1 Represents the information pertaining to more than 1 year but less than 2 years of service completed. Employee Benefit Plan, More Than One Year But Less Than Two Years Of Service Completed [Member] 1 - 2 Represents the information pertaining to more than 2 yeas but less than 3 years of service completed. Employee Benefit Plan, More Than Two Years But Less Than Three Years Of Service Completed [Member] 2 - 3 Represents the information pertaining to 3 years or more of service completed. Employee Benefit Plan, Three Years Or More Of Service Completed [Member] 3 or more Represents the percentage of vesting. Employee Benefit Plan, Vesting Percentage Vested Percentage EBP, Forfeited Nonvested Account, Decrease from Employer Contribution Amount of forfeited nonvested accounts used to reduce company contributions EBP, Forfeited Nonvested Account, Decrease from Administrative Expense Amount of forfeited nonvested accounts used to pay plan expenses EBP, Forfeited Nonvested Account Unapplied forfeited balance EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Note receivable, minimum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Note receivable, maximum borrowing amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Note receivable, maximum borrowing percentage EBP, Asset Held for Investment, Participant Loan, Interest Rate Loan interest rate Term of participant loan of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Note Receivable From Participant, Term Loan term Represents the maximum term of loan if proceeds are used for the purchase of principal residence. Employee Benefit Plan, Note Receivable From Participant, Maximum Term If Proceeds Used to Purchase Primary Residence Maximum loan term if proceeds are used for the purchase of principal residence Represents the participant age requirement for withdrawal from account balance of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Participant Age For Withdrawal from Account Balance Participant age for withdrawal from account balance Represents the minimum vested balance for single lump sum payment in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Minimum Vested Balance For Single Lump Sum Payment Minimum vested balance for single lump sum payment Represents the vested balance for rollover into individual retirement account in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Vested Balance For Rollover Into Individual Retirement Account Vested balance for rollover into individual retirement account EBP, Related Party and Party-in-Interest [Axis] EBP, Related Party and Party-in-Interest [Domain] Represents the employer of participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)). Employee Benefit Plan, Employer [Member] Metropolitan Commercial Bank EBP, Trustee [Member] Trustee Investment Type [Axis] Investments [Domain] EBP, Employer, Common Stock Fund [Member] Metropolitan Commercial Bank common stock fund EBP, Investment, Number of Shares Shares held EBP, Investment, Purchased, Number of Shares Shares purchased EBP, Investment, Sold, Number of Shares Shares sold The amount of dividends received. Employee Benefit Plan, Dividend received Dividends received The amount of revenue credits available to participants in employee stock purchase, saving, or similar plan (employee benefit plan (EBP) shared by the trustee under revenue sharing arrangement. Employee Benefit Plan, Revenue Credit Revenue credit balance The amount of revenue credits allocated to participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP) shared by the trustee under revenue sharing arrangement. Employee Benefit Plan, Revenue Credit, Allocated To Participants Revenue credit allocated to participants Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value, Inputs, Level 1, Level 2, and Level 3 [Member] Fair value Fair Value, Inputs, Level 1 [Member] Level 1 Fair Value Measured at Net Asset Value Per Share [Member] Net Asset Value EBP, Employer, Common Stock [Member] Employer stock fund Mutual Fund [Member] Registered investment companies Represents information pertaining to participants vesting percentage in the event of plan termination by the company. Employee Benefit Plan, Vesting Percentage In Event Of Termination Vesting percentage EBP, Tax Determination Letter, Obtained [true false] Determination letter obtained EBP, Tax Determination Letter, Date Determination letter date EBP, Tax Qualification Status [Extensible Enumeration] Fair value of 4 investments. Risk And Uncertainty Concentration Of Four of Investments At Fair Value Fair value of four investments Fair value of 3 investments. Risk And Uncertainty Concentration Of Three of Investments At Fair Value Fair value of three investments Investment, Identifier [Axis] EBP, Plan Number PLAN NO EBP, Investment, Issuer Name [Extensible Enumeration] EBP, Investment, Current Value, Type [Extensible Enumeration] EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Current Value EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Notes receivable from participants, Current Value EBP, Asset Held for Investment Total Assets Held for Investment, Current Value EBP, Asset Held for Investment, Party-in-Interest [true false] Party-in-interest EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Participation Status [Extensible Enumeration]