Document and Entity Information Document and Entity Information Statement [Table] Statement [Line Items] PREMISES AND EQUIPMENT Document Type Amendment Flag Document Period End Date Document Fiscal Year Focus Document Fiscal Period Focus Entity Registrant Name Entity Central Index Key Current Fiscal Year End Date Entity Filer Category Entity Common Stock, Shares Outstanding Consolidated Statements of Financial Condition Assets ASSETS Cash and amounts due from depository institutions Cash and amounts due from depository institutions Cash and Due from Banks, Total Interest-bearing deposits in other banks Interest-bearing deposits in other banks Interest bearing deposits in banks Money market funds Money market funds Cash and Cash Equivalents CASH AND CASH EQUIVALENTS - ENDING CASH AND CASH EQUIVALENTS - BEGINNING Cash and Cash Equivalents Cash and Cash Equivalents Investment securities available for sale ("AFS"), at fair value Investment securities available for sale ("AFS") at fair value Available for sale: Fair Value Fair Value Investment securities held to maturity ("HTM"), at amortized cost (fair value of $316,927 and $301,673, respectively) Investment securities held to maturity ("HTM") at amortized cost (fair value of $ 169,746 and $243,022, respectively) Held-to-maturity Securities, Total Held to maturity: Amortized Cost For an unclassified balance sheet, this item represents investments in mortgage backed securities which are categorized as held-to-maturity; such investments are measured at amortized cost (carrying value). The held-to-maturity category is for those securities that the Entity has the positive intent and ability to hold until maturity. Mortgage-backed securities held to maturity, at amortized cost Mortgage-backed securities held to maturity at amortized cost (fair value of $ 403,724 and $458,555, respectively) Loans and Leases Receivable, Net Amount Loans receivable, net of allowance for loan losses of $8,122 and $5,416, respectively Total loans receivable, net Real estate and other repossessed assets Real estate and other repossessed assets owned Other Real Estate and Foreclosed Assets, Total Other Assets Held-for-sale Real estate held for sale Real estate owned via equity investment Real estate owned via equity investment Premises and equipment, net Property, Plant and Equipment, Net, Ending Balance Property, Plant and Equipment, Net, Beginning Balance Premises and equipment, net Property, Plant and Equipment, Net, Total Restricted Investments Federal Home Loan Bank of New York and ACBB stock Accrued interest receivable Accrued interest receivable Bank owned life insurance Bank owned life insurance Goodwill Goodwill, Ending Balance Goodwill, Beginning Balance Goodwill, Total Deferred tax asset Deferred Tax Assets, Net, Total Other assets Other assets Other Assets, Total Total Assets Total Assets Total Assets LIABILITIES AND STOCKHOLDERS' EQUITY [Abstract] LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities LIABILITIES Noninterest-bearing Deposit Liabilities, Domestic Deposits: Non-interest bearing Noninterest-bearing Deposit Liabilities, Domestic, Total Non-interest bearing checking Interest-bearing Deposit Liabilities, Domestic Deposits: Interest bearing Interest-bearing Deposit Liabilities, Domestic, Total Total deposits Total deposits Total deposits Deposits Federal Home Loan Bank of New York advances Federal Home Loan Bank of New York advances Long-term Federal Home Loan Bank Advances, Total Securities sold under agreements to repurchase Subordinated debentures Subordinated debentures Junior Subordinated Debenture Owed to Unconsolidated Subsidiary Trust, Total Securities purchased and not settled Securities purchased and not settled Advance payments by borrowers for taxes and insurance Advance payments by borrowers for taxes and insurance Accrued interest payable and other liabilities Accrued interest payable and other liabilities Accounts Payable and Accrued Liabilities, Total Total Liabilities Total Liabilities Total Liabilities Stockholders' Equity STOCKHOLDERS' EQUITY Common Stock, Value Common Stock, Value, Issued, Ending Balance Common Stock, Value, Issued, Beginning Balance Common stock, $0.10 par value, 45,000,000 shares authorized, 32,731,875 shares issued; 30,183,127 and 30,320,927 shares outstanding at June 30, 2012 and December 31, 2011, respectively and 30,280,927 and 30,280,927 shares outstanding, respectively Additional Paid In Capital Additional Paid in Capital, Ending Balance Additional Paid in Capital, Beginning Balance Paid-in capital Additional Paid in Capital, Total Retained Earnings (Accumulated Deficit) Retained Earnings (Accumulated Deficit), Ending Balance Retained Earnings (Accumulated Deficit), Beginning Balance Retained earnings Retained Earnings (Accumulated Deficit), Total Unearned shares held by Employee Stock Ownership Plan Unearned shares held by Employee Stock Ownership Plan Unearned shares held by Employee Stock Ownership Plan Treasury stock, 2,115,502 and 1,799,222 shares, respectively Treasury stock, 2,548,748 and 2,410,948 shares, respectively Treasury Stock, Value, Ending Balance Treasury Stock, Value, Beginning Balance Treasury stock, 2,408,948 and 2,490,948 shares, respectively Accumulated Other Comprehensive Income (Loss), Net of Tax Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax, Ending Balance Accumulated Other Comprehensive Income (Loss), Net of Tax, Beginning Balance Accumulated other comprehensive loss Accumulated other comprehensive loss Accumulated other comprehensive loss Total Roma Financial Corporation stockholders' equity Stockholders' Equity Attributable to Parent, Ending Balance Stockholders' Equity Attributable to Parent, Beginning Balance Total Roma Financial Corporation stockholders' equity Total Roma Financial Corporation stockholders' equity Minority Interest Stockholders' Equity Attributable to Noncontrolling Interest, Ending Balance Stockholders' Equity Attributable to Noncontrolling Interest, Beginning Balance Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest, Total Balance March 31, 2011 Balance Balance Total Stockholders' Equity Total Stockholders' Equity Total Liabilities and Stockholders' Equity Total Liabilities and Stockholders' Equity Total Liabilities and Stockholders' Equity Held-to-maturity Securities, Fair Value Investment securities, fair value Held to maturity: Fair Value Fair Value Mortgage-backed Securities Held to maturity, Fair Value Disclosure Mortgage-backed Securities Held to maturity, Fair Value Disclosure Loans and Leases Receivable, Allowance Loans and Leases Receivable, Allowance, Ending Balance Loans and Leases Receivable, Allowance, Beginning Balance Loans and Leases Receivable, Allowance, Total Less: Allowance for loan losses Common Stock, Par or Stated Value Per Share Common Stock, Shares Authorized Common Stock, Shares, Issued Common Stock, Shares, Issued, Total Common Stock, Shares, Outstanding Common Stock, Shares, Outstanding, Ending Balance Common Stock, Shares, Outstanding, Beginning Balance Treasury Stock, Shares Treasury Stock, Shares, Ending Balance Treasury Stock, Shares, Beginning Balance Consolidated Statements of Income Interest and Dividend Income, Operating [Abstract] INTEREST INCOME Interest and Fee Income, Loans and Leases Loans, including fees Interest and Fee Income, Loans and Leases, Total Interest Income, Securities, Mortgage Backed Mortgage-backed securities held to maturity Interest and Dividend Income, Securities, Held-to-maturity Investment securities held to maturity Interest and Dividend Income, Securities, Available-for-sale Securities available for sale Other interest-earning assets Interest and Dividend Income, Operating Total Interest Income Interest Expense [Abstract] INTEREST EXPENSE Interest Expense, Deposits Deposits Interest Expense, Deposits, Total Interest Expense, Borrowings Borrowings Interest Expense, Borrowings, Total Interest Expense Total Interest Expense Interest Income (Expense), Net Net Interest Income Provision for Loan and Lease Losses PROVISION FOR LOAN LOSSES Provision for Loan and Lease Losses, Total Provision for loan losses Interest Income (Expense), after Provision for Loan Loss Net Interest Income after Provision for Loan Losses Noninterest Income [Abstract] NON-INTEREST INCOME Commissions on sales of title policies Fees and Commissions, Other Fees and service charges on deposits and loans Income from bank owned life insurance Increase in cash surrender value of bank owned life insurance Increase in cash surrender value of bank owned life insurance Gain (Loss) on Sale of Mortgage Loans Net gain on sale of mortgage loans originated for sale Net gain from sale of mortgage loans originated for sale Gain (Loss) on Sale of Securities, Net Net gain from sale of available for sale securities Gain (Loss) on Sale of Securities, Net, Total Realized loss on real estate held for sale Gain (Loss) on Sales of Held For Sale Real Estate Realized loss on sale of real estate held for sale Realized gain (loss) on real estate held for sale Realized loss on sale of real estate held for sale Realized (loss) from real estate owned Net realized loss from sales of real estate owned Realized (loss) on real estate owned Noninterest Income, Other Operating Income Other Noninterest Income Total Non-Interest Income Noninterest Expense [Abstract] NON-INTEREST EXPENSE Labor and Related Expense Salaries and employee benefits Labor and Related Expense, Total Net occupancy expense of premises Equipment Data processing fees Federal deposit insurance premiums Federal Deposit Insurance Premium Advertising Commercial and residential loan expense Commercial and residential loan expense Other Noninterest Expense Other Noninterest Expense Total Non-Interest Expense Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Cumulative Effects of Changes in Accounting Principles, Noncontrolling Interest Income Before Income Taxes Income Tax Expense (Benefit) INCOME TAXES Income Tax Expense (Benefit), Total Net Income (Loss) Attributable to Parent Net income for the nine months ended Net income Net Income Extraordinary Item, Gain or Loss, Net of Tax, Attributable to Noncontrolling Interest Plus: net gain attributable to the noncontrolling interest Plus: net gain attributable to the noncontrolling interest Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Net income Net Income attributable to Roma Financial Corporation Earnings Per Share [Abstract] Net income attributable to Roma Financial Corporation per common share Earnings Per Share, Basic and Diluted Basic and Diluted Earnings Per Share, Basic and Diluted, Total Common Stock, Dividends Declared, Per Share Dividends Declared Per Share Earnings Per Share, Basic [Abstract] WEIGHTED AVERAGE NUMBER OF COMMON SHARES OUTSTANDING Weighted Average Number of Shares Outstanding, Basic and Diluted Basic and Diluted Consolidated Statements of Comprehensive Income Accumulated Other Comprehensive Income (Loss) [Abstract] Other comprehensive income: Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, before Tax Unrealized holding gains on available for sale securities: Unrealized holding gains (losses) arising during the period Net unrealized gain on securities available for sale Other Comprehensive Income (Loss), Reclassification Adjustment for Sale of Securities Included in Net Income, before Tax Unrealized holding gains on available for sale securities: Less: reclassification adjustment for (gains) included in net income Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax Net realized gain (loss) on securities available for sale Other Comprehensive Income (Loss), Available-for-sale Securities, Tax Tax effect Tax effect Other Comprehensive Income (Loss), Available-for-sale Securities, Tax, Total Other Comprehensive Income (Loss), Net of Tax Other comprehensive income, net Other comprehensive income (loss), net of tax Comprehensive Income, Net of Tax, Including Portion Attributable to Noncontrolling Interest Total comprehensive income Comprehensive income Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to the noncontrolling interest Comprehensive income attributable to the noncontrolling interest Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest, Total Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Comprehensive income attributable to Roma Financial Corporation Consolidated Statements of Changes in Stockholders' Equity Statement, Equity Components [Axis] Equity Component [Domain] Equity Component [Domain] Parent [Member] Parent [Member] Common Stock [Member] Common Stock [Member] Additional Paid In Capital [Member] Paid-In Capital [Member] Retained Earnings [Member] Retained Earnings [Member] Deferred Compensation Share Based Payments [Member] Unearned Shares Held By ESOP [Member] Accumulated Other Comprehensive Income [Member] Accumulated Other Comprehensive Income (Loss) [Member] Treasury Stock [Member] Treasury Stock [Member] Noncontrolling Interest [Member] Noncontrolling Interest [Member] Shares, Issued Shares, Balance, Shares, Balance, Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Vesting of restricted stock Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures, Total Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures Vesting of restricted stock, shares Stock Issued During Period, Shares, Restricted Stock Award, Net of Forfeitures, Total Dividends, Common Stock, Cash Dividends declared and paid Dividends paid and declared Treasury Stock, Value, Acquired, Cost Method Treasury shares repurchased Treasury shares repurchased Treasury Stock, Shares Acquired Treasury shares repurchased, shares Treasury shares repurchased, shares Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Value Stock-based compensation Adjustments to Additional Paid in Capital, Share-based Compensation, Requisite Service Period Recognition, Total Employee Stock Ownership Plan (ESOP), Compensation Expense ESOP shares earned Consolidated Statements of Cash Flows Cash and Cash Equivalents, Period Increase (Decrease) [Abstract] Net Cash Provided by (Used in) Operating Activities [Abstract] CASH FLOWS FROM OPERATING ACTIVITIES Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction, Total Accretion (Amortization) of Discounts and Premiums, Investments Amortization of premiums and accretion of discounts on securities Amortization of premiums and accretion of discounts on securities Amortization of Deferred Loan Origination Fees, Net Accretion of deferred loan fees and discounts Accretion of deferred loan fees and discounts The sum of the periodic adjustments of the differences between the face values of loans acquired and purchase prices that are charged against earnings. As a noncash item, this element is an adjustment to net income when calculating cash provided by (used in) operations using the indirect method. Amortization of net premiums on loans Amortization of net premiums on loans The component of interest expense representing the periodic charge against earnings to reflect amortization of premiums of deposits over the life of the related deposits, which are liabilities of the entity. Amortization of premiums on deposits Amortization of premiums on deposits Amortization of Debt Discount (Premium) Amortization of premiums on subordinated debt Gain (Loss) on Sale of Investments Gain on sale of securities available for sale Gain (Loss) on Sale of Investments, Total Payments for Origination of Mortgage Loans Held-for-sale Mortgage loans originated for sale Mortgage loans originated for sale Proceeds from Sale of Mortgage Loans Held-for-sale Proceeds from sales of mortgage loans originated for sale Proceeds from sales of mortgage loans originated for sale Proceeds from Sale of Real Estate Held-for-investment Proceeds from sale of real estate held for sale Proceeds from Sale of Real Estate Held-for-investment, Total Share-based Compensation Stock-based compensation, including warrants Share-based Compensation, Total Increase (Decrease) in Accrued Interest Receivable, Net Decrease in accrued interest receivable Decrease (increase) in accrued interest receivable Increase in cash surrender value of bank owned life insurance Increase in cash surrender value of bank owned life insurance Increase (Decrease) in Other Operating Assets (Increase) decrease in other assets Increase in other assets Increase (Decrease) in Other Operating Assets, Total Increase (Decrease) in Interest Payable, Net Decrease in accrued interest payable Increase (Decrease) in Deferred Income Taxes Decrease in deferred income taxes Decrease in deferred income taxes Increase (Decrease) in Other Operating Liabilities (Decrease) increase in other liabilities Increase (Decrease) in Other Operating Liabilities, Total Net Cash Provided by (Used in) Operating Activities Net Cash Provided by Operating Activities Net Cash Provided by (Used in) Investing Activities [Abstract] CASH FLOWS FROM INVESTING ACTIVITIES Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Proceeds from maturities, calls and principle repayments of securities available for sale Proceeds from Sale of Available-for-sale Securities Proceeds from sale of securities available for sale Proceeds from Sale of Available-for-sale Securities, Total Payments to Acquire Available-for-sale Securities Purchases of securities available for sale Purchases of securities available for sale Payments to Acquire Available-for-sale Securities, Total Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Proceeds from maturities, calls and principal repayments of investment securities held to maturity Payments to Acquire Held-to-maturity Securities Purchases of investment securities held to maturity Purchases of investment securities held to maturity Proceeds from Maturities, Prepayments and Calls of Mortgage Backed Securities (MBS) Principal repayments on mortgage-backed securities held to maturity Payments to Acquire Mortgage Backed Securities (MBS) categorized as Held-to-maturity Purchases of mortgage-backed securities held to maturity Purchases of mortgage-backed securities held to maturity Payments for (Proceeds from) Loans and Leases Net increase in loans receivable Net increase in loans receivable Payments for (Proceeds from) Loans and Leases, Total Payments to Acquire Life Insurance Policies Purchase of bank owned life insurance Purchase of bank owned life insurance Proceeds from Life Insurance Policies Proceeds from life insurance redemption Net additions to premises and equipment and real estate owned via equity investment Net additions to premises and equipment and real estate owned via equity investment Additions to premises and equipment and real estate owned via equity investment Proceeds from Sale of Other Real Estate Proceeds from sale of real estate owned Payments to Acquire Restricted Investments Purchases of Federal Home Loan Bank of New York stock Purchases of Federal Home Loan Bank of New York and ACBB stock Payments to Acquire Restricted Investments, Total Net Cash Provided by (Used in) Investing Activities Net Cash Provided by (Used in) Provided by Investing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] CASH FLOWS FROM FINANCING ACTIVITIES Increase (Decrease) in Deposits Net (decrease) increase in deposits Increase (Decrease) in Deposits, Total The net increase (decrease) during the period of the carrying amount of accumulated prepayments received by financial institutions from borrowers for taxes (for example, property taxes) and insurance (for example, property and catastrophe) which will periodically be remitted to the appropriate governmental agency(ies) or vendor(s) on behalf of the borrower. Increase in advance payments by borrowers for taxes and insurance Payments for Repurchase of Common Stock Purchase of treasury stock Purchases of treasury stock Payments of Dividends, Common Stock Dividends paid to minority stockholders of Roma Financial Corp. Dividends paid to minority stockholders of Roma Financial Corp. Repayments of Federal Home Loan Bank Borrowings Repayments of Federal Home Loan Bank of New York advances Redemption of Federal Home Loan Bank of New York advances Proceeds from Federal Home Loan Bank Borrowings Proceeds from Federal Home Loan Bank of New York advances Repayments of Subordinated Debt Repayment of subordinated debentures Repayment of subordinated debentures Repayments of Subordinated Debt, Total Net Cash Provided by (Used in) Financing Activities Net Cash (Used in) Provided by Financing Activities Cash and Cash Equivalents, Period Increase (Decrease) Net Increase in Cash and Cash Equivalents Supplemental Cash Flow Information [Abstract] Supplementary Cash Flows Information Income Taxes Paid Income taxes paid, net Interest paid Interest Paid, Total Transfer Other Real Estate Loans receivable transferred to real estate owned Organization, Basis of Presentation [Abstract] Nature of Operations [Text Block] ORGANIZATION Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block] BASIS OF PRESENTATION Contingencies [Abstract] Commitments and Contingencies Disclosure [Text Block] Contingencies Earnings Per Share [Text Block] EARNINGS PER SHARE Stock Based Compensation [Abstract]