Unearned Compensation Employee Stock Ownership Plan Contra-equity account that represents the par value of shares committed to be allocated by the esop as of the balance sheet date. Unearned compensation - ESOP (103,177 shares unallocated at September 30, 2012 and 28,597 shares unallocated at December 31, 2011) Unearned Compensation Restricted Stock This element represents unearned compensation of restricted stock in which a portion of an employee's income is paid out at a date after which that income is actually earned. Unearned compensation - Restricted stock (30,281 shares non-vested at September 30, 2012 and 36,552 shares non-vested at December 31, 2011) Unearned Compensation ESOP [Member] Deferred compensation arrangement through ESOP plans. Unearned Compensation-ESOP Interest Paid on Deposit Accounts Interest paid on deposit accounts. Interest paid on deposit accounts Interest Paid on Borrowings Interest paid on borrowings. Interest paid on borrowings CONVERSION AND REORGANIZATION TO STOCK HOLDING COMPANY Award Type [Axis] Conversion and Reorganization to Stock Holding Company Disclosure [Text Block] Disclosure for conversion or reorganization of the mutual holding company pursuant to which holding company will undertake a ''second-step'' conversion and cease to exist. CONVERSION AND REORGANIZATION TO STOCK HOLDING COMPANY Document and Entity Information Net Increase (Decrease) in Advance Payments by Borrowers for Property Taxes and Insurance Net change in mortgagors' escrow accounts This element represents the increase/(decrease) in 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 tax authority or insurer (or insurance agency) on behalf of the borrower. Available For Sale Securities Debt Maturities Excluding without Single Maturity Date Amortized Cost Basis Excluding residential mortgage-backed securities Represents the amount of available-for-sale debt securities at cost, excluding securities that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the cost over several maturity groupings. Amendment Description Available For Sale Securities Debt Maturities Excluding without Single Maturity Date Fair Value Excluding residential mortgage-backed securities Represents the amount of available-for-sale debt securities at fair value, excluding debt securities that do not have a single maturity date, which the entity has decided to disclose separately rather than allocating the cost over several maturity groupings. Amendment Flag Carrying amount of debt securities accounted for as held-to-maturity, net of adjustments, excluding securities that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the cost over several maturity groupings. Held to Maturity Securities Debt Maturities Excluding without Single Maturity Date, Net Carrying Amount Excluding residential mortgage-backed securities Held to Maturity Securities Debt Maturities Excluding without Single Maturity Date Fair Value Excluding residential mortgage-backed securities Represents the total of all debt securities categorized as held-to-maturity grouped by maturity dates, at fair value, excluding securities that do not have a single maturity date and which the entity has decided to disclose separately rather than allocating the cost over several maturity groupings. Available For Sale Securities in Unrealized Loss Positions Depreciation as Percentage of Amortized Cost Basis Aggregate depreciation from securities' amortized cost basis (as a percent) Represents the aggregate depreciation of available-for-sale securities that had an unrealized loss, as a percentage of the securities' amortized cost basis. One to Four Family Residential Mortgage Loan [Member] One-to-four family, residential loans Represents the class of financing receivable related to one-to-four family residential mortgage. One-to-four family investment property Represents the class of financing receivable related to commercial one-to-four family investment property. One to Four Family Investment Property Commercial Loan [Member] Multi Family Real Estate Commercial Loan [Member] Multi-family real estate Represents the class of financing receivable related to multi-family real estate. Commercial Business [Member] Commercial business Represents the class of financing receivable related to commercial business. One to Four Family Construction Loans [Member] One-to-four family, construction loans Represents the class of financing receivable related to one-to-four family construction. Multi Family Construction Loans [Member] Multi-family Represents the class of financing receivable related to multi-family construction. Non Residential Construction Loans [Member] Non-residential Represents the class of financing receivable related to non-residential construction. Impaired Financing Receivable Related Allowance [Abstract] Related Allowance Not Formally Rated [Member] Not formally rated Represents the not formally rated credit quality indicator. Financing Receivable Modifications [Abstract] Troubled debt restructuring Internal Loan Rating System [Abstract] Internal Loan Rating System Servicing Assets at Fair Value Assumptions Used to Estimate Fair Value Discount Rate Average Term of Reference Rate Moving average term of U.S. Treasury rate used to estimate the discount rate in order to determine the fair value of servicing rights. Moving average term of U.S. Treasury rate used to estimate the discount rate in order to determine the fair value of servicing rights Moving average term of U.S. Treasury rate used to estimate the discount rate in order to determine the fair value of servicing rights (in years) Servicing Assets at Fair Value Assumptions Used to Estimate Fair Value Discount Rate Basis Spread on Variable Rate Percentage added to the moving average 10-year U.S. Treasury rate to estimate the discount rate used to determine the fair value of servicing rights Represents the percentage added to the reference rate to reflect the current credit spreads and conditions in the market to estimate the discount rate used to determine the fair value of servicing assets. Current Fiscal Year End Date Fair Value Assumptions and Methodology for Short Term Federal Home Loan Bank Advances [Abstract] Short-term FHLB advances Fair Value Assets Measured on Nonrecurring Basis Unobservable Input Reconciliation [Table Text Block] Schedule of fair value measurements using significant unobservable inputs Tabular disclosure of the fair value measurement of assets on nonrecurring basis, using significant unobservable inputs (Level 3), a reconciliation of the beginning and ending balances, separately presenting changes during the period attributable to the following: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income (loss), and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of Level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset. Fair Value Assets Measured on Nonrecurring Basis Unobservable Input Reconciliation by Asset Class [Domain] Represents classes of assets measured on a nonrecurring basis and disclosed at fair value. Impaired Loans [Member] Impaired Loans Represents the impaired loans measured at fair value on a nonrecurring basis. Other Real Estate Owned [Member] Other Real Estate Owned Represents the other real estate owned measured at fair value on a nonrecurring basis. Available-for-sale Securities, Continuous Unrealized Loss Position, Less than 12 Months, Aggregate Losses Less Than Twelve Months Fair Value, Assets Measured on Nonrecurring Basis Unobservable Input Reconciliation [Line Items] Fair Value Measurements Using Significant Unobservable Inputs Fair Value, Assets Measured on Nonrecurring Basis Unobservable Input Reconciliation Calculation [Roll Forward] Reconciliation of assets measured at fair value on a nonrecurring basis Fair Value, Measurement with Unobservable Inputs Reconciliation, Nonrecurring Basis, Asset Value Represents an asset measured at fair value on nonrecurring basis, using significant unobservable inputs (level 3), which is required for reconciliation purposes of beginning and ending balances. Balance at the beginning of the period Balance at the end of the period Fair Value, Measurement with Unobservable Inputs Reconciliation Nonrecurring Basis, Asset Transfers into Level 3 Transfers in to level 3 Transfers into assets measured at fair value on a nonrecurring basis and categorized within level 3 of the fair value hierarchy, that have taken place during the period. Fair Value, Measurement with Unobservable Inputs Reconciliation Nonrecurring Basis, Asset Decrease Due to Loans Charged off Represents the decrease due to loans charged off of assets measured at fair value on a nonrecurring basis and categorized within level 3 of the fair value hierarchy, that have taken place during the period. Decrease due to loans charged off Fair Value Assets Measured on Nonrecurring Basis Unobservable Input Reconciliation [Table] Schedule of information required and determined to be provided for purposes of reconciling beginning and ending balances of fair value measurements of assets on a nonrecurring basis, using significant unobservable inputs (level 3). Such reconciliation, separately presenting changes during the period, at a minimum, may include, but is not limited to: (1) total gains or losses for the period (realized and unrealized), segregating those gains or losses included in earnings (or changes in net assets) and gains or losses recognized in other comprehensive income, and a description of where those gains or losses included in earnings (or changes in net assets) are reported in the statement of income (or activities); (2) purchases, sales, issues, and settlements (each type disclosed separately); and (3) transfers in and transfers out of level 3 (for example, transfers due to changes in the observability of significant inputs), by class of asset. Document Period End Date Fair Value Assumptions and Methodology for Capitalized Mortgage Servicing Rights [Abstract] Capitalized mortgage servicing rights Share Based Compensation Arrangement by Share Based Payment Award Number of Plans Number of equity incentive plans Represents the number of share-based compensation plans of the entity. Share Based Compensation Arrangement by Share Based Payment Award Options Weighted Average Remaining Contractual Term [Abstract] Weighted Average Remaining Contractual Term Share Based Compensation Arrangement by Share Based Award, Aggregate Intrinsic Value [Abstract] Aggregate Intrinsic Value Balance at beginning of period Balance at end of period Servicing Asset at Amortized Value before Valuation Allowance Amortized carrying amount (balance), before valuation allowance, as of the balance sheet date of an asset representing net future revenues from contractually specified servicing fees, late charges, and other ancillary revenues, in excess of future costs related to servicing arrangements. Represents the maturity period of short-term advances from the Federal Home Loan Bank. Short Term Federal Home Loan Bank Advances, Maturity Period Maturity period of short-term FHLB advances (in days) Reorganization [Line Items] Corporate structure Corporate Structure Reorganization [Table] Information pertaining to the changes in the corporate structure of the reporting entity. Entity [Domain] Related Party [Axis] Information by type of related party. Marginally Acceptable [Member] Marginally Acceptable A category of financing receivables which are starting to show signs of potential weakness and are being closely monitored by management. Management Attention [Member] A category of financing receivables which are placed on a "watch list" andare being closely monitored by management because of some borrower management weaknesses and non-monetary defaults. Management Attention Available-for-sale Securities, Continuous Unrealized Loss Position, 12 Months or Longer, Aggregate Losses Greater Than Twelve Months Internal Loan Rating System, Number of Grades Number of grades in internal loan rating system The number of grades in the reporting entity's internal loan rating system. Grade assigned in internal loan rating system Internal Loan Rating, System Rating The grade assigned to a loan based on the reporting entity's internal loan rating system. Servicing Asset at Amortized Value Valuation Allowance [Roll Forward] Valuation allowances: Balance at beginning of period Balance at end of period Servicing Assets at Amortized Value Valuation Allowance Represents the amount of valuation allowance applied to the carrying value of servicing assets as on the reporting date. Additions Servicing Asset at Amortized Value Valuation Allowance Provisions Provision charged for the period based on estimated losses to be realized from servicing of loans. Servicing Asset at Amortized Value Valuation Allowance Recoveries The amount of servicing rights that have been recovered. Recoveries Servicing Asset at Amortized Value Valuation Allowance Write-offs Reflects the amount of servicing rights that have been charged off because they are considered uncollectible. Write-downs Notes Receivable, Gross Percentage Total loans (as a percent) Represents an agreement for an unconditional promise by the maker to pay the entity (holder) a definite sum of money at a future date in the form of percentage. Accrued Interest Receivable, Fair Value Disclosure Accrued interest receivable Represents the fair value of the accrued interest receivable by the entity. Represents the first exercise price. Exercise Price one Exercise Price One [Member] Represents the second exercise price. Exercise Price two Exercise Price Two [Member] Represents the third exercise price. Exercise Price three Exercise Price Three [Member] Available-for-sale Securities, Gross Unrealized Gains Gross Unrealized Gains Share Based Compensation, Shares Authorized Under Stock Option Plans, Exercise Price Exercise Price (in dollars per share) Represents information pertaining to exercise price as of the balance sheet date at which grantees could acquire the underlying shares with respect to all outstanding and exercisable stock options. Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Outstanding Options [Abstract] Options Outstanding Share Based Compensation Shares Authorized Under Stock Option Plans Exercise Price Range Exercisable Options [Abstract] Options Exercisable Schedule of Troubled Debt Restructurings [Table Text Block] Summary of troubled debt restructurings in default of the modified terms Tabular disclosure of troubled debt restructurings in default of the modified terms. Financing Receivable Modifications Additional Funds to Complete Project Additional funds to complete the project and allow time for the sale of the property Represents the amount of additional funds to complete the project and allow time for the sale of the property. Financing Receivable Modifications Loan Loss Recovery Loan loss recovery attributable to refinancing of the first mortgage Represents the amount of loan loss recovery attributable to refinancing of the first mortgage. Adjustments To Additional Paid in Capital, Reorganization Effect Merger of Georgetown Bancorp, MHC Increase in additional paid in capital due to reorganization in connection with mutual-to-stock conversion during the period. Adjustment to Additional Paid in Capital, Net Proceeds from Issuance of Common Stock Represents the increase in additional paid in capital due to issuance of common stock relating to reorganization during the period. Net proceeds from the issuance of common stock (1,100,000 shares) Exchange of Common Stock on Reorganization Value Represents common stock exchanged as a part of reorganization plan. Reorganization and related stock offering Exchange of common stock: 2,777,750 shares at $0.10 par value per share for 1,940,302 shares at $0.01 par value per share Stock Issued During the Period on Reorganization, Shares Proceeds from issuance of common stock (in shares) Number of shares of common stock issued as a part of reorganization. Common stock acquired by ESOP (88,000 shares) Unearned ESOP Shares Increasse(Decrease) Represents the amount of unearned increase (decrease) in shares for all classes of common stock and nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by an employee stock ownership plan (ESOP). Second Step Exchange Ratio Second-step exchange ratio In connection with the corporate restructuring, represents the second-step exchange ratio used to convert all share and per share amounts in the notes to consolidated financial statements giving retroactive recognition. SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Entity Well-known Seasoned Issuer Entity Voluntary Filers Entity Current Reporting Status Entity Filer Category Entity Public Float Entity Registrant Name Entity Central Index Key Entity Common Stock, Shares Outstanding Receivable Type [Axis] Document Fiscal Year Focus Document Fiscal Period Focus Legal Entity [Axis] Document Type Accounts, Notes, Loans and Financing Receivable [Line Items] Loans Amortization (accretion) of securities, net Accretion (Amortization) of Discounts and Premiums, Investments Accrued Liabilities, Fair Value Disclosure Accrued interest payable Accumulated Other Comprehensive Income Accumulated Other Comprehensive Income (Loss) [Member] Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Additional paid-in capital Additional Paid in Capital Additional Paid-in Capital Additional Paid-in Capital [Member] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Share based compensation - options Adjustments to Additional Paid in Capital, Share-based Compensation and Exercise of Stock Options Adjustments to Additional Paid in Capital, Share-based Compensation, Nonvested Shares, Requisite Service Period Recognition Share based compensation - restricted stock Advance Payments by Borrowers for Taxes and Insurance Mortgagors' escrow accounts Mortgagers' escrow accounts Advertising expenses Advertising Expense Allocated Share-based Compensation Expense Share-based compensation expense recognized (in dollars) Allowance for Loan and Lease Losses, Recoveries of Bad Debts Recoveries Allowance for Credit Losses on Financing Receivables [Table Text Block] Schedule of information pertaining to the allowance for loan losses Allowance for Loan and Lease Losses, Write-offs Charge-offs Net change in loan fees and costs Amortization of Deferred Loan Origination Fees, Net Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Antidilutive options not included in the computation of diluted earnings per share (in shares) Asset Impairment Charges Adjustments to Fair Value Assets, Fair Value Disclosure Assets at Fair Value ASSETS Assets [Abstract] Assets Sold under Agreements to Repurchase, Interest Rate Weighted average interest rate on securities sold under agreements to repurchase (as a percent) Total assets Assets Available-for-sale Securities, Continuous Unrealized Loss Position, Less than Twelve Months, Fair Value Less Than Twelve Months Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Fair Value After 1 year through 5 years Securities without single maturity date Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Fair Value Available-for-sale Securities, Continuous Unrealized Loss Position, Fair Value [Abstract] Fair Value Available-for-sale Securities, Fair Value Disclosure Securities available for sale Fair Value Available-for-sale Securities, Debt Maturities, Rolling Year Two Through Five, Amortized Cost Basis After 1 year through 5 years Available-for-sale Securities Securities available for sale, at fair value Available-for-sale Securities, Continuous Unrealized Loss Position, Aggregate Losses [Abstract] Gross Unrealized Losses Available-for-sale Securities, Continuous Unrealized Loss Position, Twelve Months or Longer, Fair Value Greater Than Twelve Months Available-for-sale Securities, Debt Maturities, without Single Maturity Date, Amortized Cost Basis Securities without single maturity date Available-for-sale Debt Securities, Amortized Cost Basis Amortized Cost Available-for-sale Securities, Debt Maturities, Rolling after Year Ten, Amortized Cost Basis Over 10 years Available-for-sale Securities, Gross Unrealized Losses Gross Unrealized Losses Available-for-sale Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] Available for sale, Fair Value Available-for-sale Securities, Debt Maturities, Rolling after Year Ten, Fair Value Over 10 years Available-for-sale Securities, Debt Maturities, Amortized Cost Basis Total Available-for-sale Securities, Debt Maturities, Amortized Cost Basis, Rolling Maturity [Abstract] Available for sale, Amortized cost Available-for-sale Securities [Abstract] Securities available for sale Available-for-sale, Securities in Unrealized Loss Positions, Qualitative Disclosure, Number of Positions Number of available-for-sale securities in unrealized loss position Bank-owned life insurance Bank Owned Life Insurance Income from bank-owned life insurance Income from bank-owned life insurance Bank Owned Life Insurance Income Basis of Presentation Business Description and Basis of Presentation [Text Block] Carrying (Reported) Amount, Fair Value Disclosure [Member] Carrying Amount SHORT-TERM INVESTMENTS Cash, Cash Equivalents, and Short-term Investments [Text Block] Cash and Due from Banks Cash and due from banks Cash and Cash Equivalents, Fair Value Disclosure Cash and cash equivalents Total cash and cash equivalents Cash, Cash Equivalents, and Short-term Investments Cash and cash equivalents at beginning of period Cash and cash equivalents at end of period Commercial Loan [Member] Commercial loans: Commercial Real Estate [Member] Commercial real estate COMMITMENTS AND CONTINGENCIES Commitments and Contingencies Disclosure [Text Block] COMMITMENTS AND CONTINGENCIES Commitments and contingencies Commitments and Contingencies. Common Stock Common Stock [Member] Common stock, $0.01 par value per share: 100,000,000 shares authorized, 1,940,302 shares issued at September 30, 2012 and $ 0.10 par value per share: 10,000,000 shares authorized, 2,777,250 shares issued at December 31, 2011 Common Stock, Value, Issued Common stock, shares issued Common Stock, Shares, Issued Exchange of common stock, shares Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Exchange of common stock, par value (in dollars per share) Common stock, shares authorized Common Stock, Shares Authorized Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Comprehensive income: Comprehensive Income (Loss), Net of Tax, Attributable to Parent Comprehensive income Comprehensive Income Comprehensive Income [Member] CONDENSED PARENT COMPANY FINANCIAL STATEMENTS Condensed Financial Information of Parent Company Only Disclosure [Text Block] CONDENSED PARENT COMPANY FINANCIAL STATEMENTS Construction Loans [Member] Construction loans: Consumer Loan [Member] Consumer Income tax provision Current Income Tax Expense (Benefit) Doubtful [Member] Doubtful Debt Security [Axis] Secured Borrowings and Collateral Debt Disclosure [Text Block] Secured Borrowings and Collateral Unearned Compensation-Restricted Stock Deferred Compensation, Share-based Payments [Member] DEPOSITS Deposit Liabilities Disclosures [Text Block] Deposits Deposits. DEPOSITS Deposits, Fair Value Disclosure Deposits Depreciation, Depletion and Amortization, Nonproduction Depreciation and amortization expense DERIVATIVE FINANCIAL INSTRUMENTS Derivative Instruments and Hedging Activities Disclosure [Text Block] DERIVATIVE FINANCIAL INSTRUMENTS SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE Equity Incentive Plan Disclosures Pertaining to Servicing Assets and Servicing Liabilities [Abstract] Loans serviced for others Diluted (in dollars per share) Earnings Per Share, Diluted Diluted earnings per share (in dollars per share) Basic (in dollars per share) Earnings Per Share, Basic Basic earnings per share (in dollars per share) Weighted-average number of common shares outstanding: Earnings Per Share, Basic and Diluted, Other Disclosures [Abstract] Earnings Per Common Share Earnings Per Share [Text Block] Earnings per share: Earnings Per Common Share Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Period for Recognition Weighted average period for recognition of share-based compensation Employee Service Share-based Compensation, Tax Benefit from Compensation Expense Tax benefit from recognized compensation expense (in dollars) Common stock held by ESOP allocated or committed to be allocated (5,430 and 6,144 shares for the period ended September 30, 2012 and September 30, 2011, respectively) Employee Stock Ownership Plan (ESOP), Compensation Expense Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Stock Options Unrecognized share-based compensation expense related to non-vested options (in dollars) Employee Service Share-based Compensation, Nonvested Awards, Total Compensation Cost Not yet Recognized, Share-based Awards Other than Options Unrecognized share-based compensation expense related to non-vested restricted stock (in dollars) Common stock held by ESOP allocated or committed to be allocated (in shares) Employee Stock Ownership Plan (ESOP), Number of Allocated Shares Common stock acquired by ESOP (in shares) Employee Stock Ownership Plan (ESOP), Number of Suspense Shares Unearned compensation - ESOP shares unallocated Employee Stock Ownership Plan (ESOP), Shares in ESOP Equity Component [Domain] Estimate of Fair Value, Fair Value Disclosure [Member] Total Assets at Fair Value Assets at Fair Value Total Measurement Frequency [Axis] Fair Value, Hierarchy [Axis] Fair Value, Measurements, Recurring [Member] Recurring basis Fair Value, Measurement Frequency [Domain] Fair Value Measurements, Recurring and Nonrecurring [Table] Asset Class [Axis] Fair Value, Measurements, Fair Value Hierarchy [Domain] Fair Value Assumptions and Methodology for Assets and Liabilities [Abstract] Methods and assumptions used in estimating fair value disclosures for financial instruments Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Assets measured at fair value on a recurring basis Fair value measurements Fair Value Measurements Fair Value Measurements Fair Value Disclosures [Text Block] Fair Value, Measurements, Nonrecurring [Member] Non-recurring basis Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Estimated fair values and related carrying amounts of the Company's financial instruments Fair Value, Assets Measured on Recurring Basis [Table Text Block] Schedule of assets and liabilities measured at fair value on a recurring basis Fair Value Measurements, Nonrecurring [Table Text Block] Schedule of assets measured at fair value on a non-recurring basis Fair Value, by Balance Sheet Grouping [Table Text Block] Schedule of estimated fair values and related carrying amounts of the Company's financial instruments Fair Value, Disclosure Item Amounts [Domain] Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping, Disclosure Item Amounts [Axis] Fair Value, Inputs, Level 3 [Member] Level 3 Level 1 Fair Value, Inputs, Level 1 [Member] Fair Value, Inputs, Level 2 [Member] Level 2 Federal Home Loan Bank Borrowings, Fair Value Disclosure Long-term FHLB advances FEDERAL HOME LOAN BANK ADVANCES Federal Home Loan Bank Advances, Disclosure [Text Block] Federal Home Loan Bank stock, at cost Federal Home Loan Bank Stock FDIC insurance Federal Deposit Insurance Corporation Premium Expense Short-term Federal Home Loan Bank advances Federal Home Loan Bank, Advances, Short-term Long-term Federal Home Loan Bank advances Long-term Federal Home Loan Bank Advances Mortgage banking income, net Fees and Commissions, Mortgage Banking Fees and Commissions, Depositor Accounts Customer service fees Financial Instruments, Financial Liabilities, Balance Sheet Groupings [Abstract] Financial liabilities: Financial Instruments, Financial Assets, Balance Sheet Groupings [Abstract] Financial assets: Financial Instruments Owned and Pledged as Collateral by Type [Axis] Financial Instruments Owned and Pledged as Collateral, Type [Domain] Financial Instruments Owned and Pledged as Collateral [Line Items] Secured borrowings and collateral Financial Instruments Owned and Pledged as Collateral [Table] Financing Receivable, Recorded Investment, Past Due [Line Items] Past-due and non-accrual loans Financing Receivable, Modifications, Post-Modification Recorded Investment Post-modification outstanding in recorded investment Financing Receivable, Modifications, Pre-Modification Recorded Investment Pre-modification outstanding recorded investment Financing Receivable, Recorded Investment, 90 Days Past Due and Still Accruing 90 days or more and accruing Financing Receivable, Recorded Investment, Nonaccrual Status Non-accrual Loans Financing Receivable, Allowance for Credit Losses [Line Items] Allowance for loan losses Financing Receivable, Allowance for Credit Losses, Individually Evaluated for Impairment Ending balance: individually evaluated for impairment Financing Receivable, Recorded Investment [Line Items] Loans by risk rating Financing Receivable, Allowance for Credit Losses [Roll Forward] Allowance for loan losses Financing Receivable, Recorded Investment, 30 to 59 Days Past Due Loans delinquent for: 30 - 59 Days Credit Quality Indicator [Axis] Financing Receivable, Modifications, Recorded Investment Recorded investment Financing Receivable, Recorded Investment, Equal to Greater than 90 Days Past Due Loans delinquent for: 90 days or more Financing Receivable, Recorded Investment, 60 to 89 Days Past Due Loans delinquent for: 60 - 89 Days Financing Receivable, Allowance for Credit Loss, Additional Information [Abstract] Loans Financing Receivable, Impaired [Line Items] Analysis of impaired loans Financing Receivable, Modifications, Number of Contracts Number of Contracts Financing Receivable, Individually Evaluated for Impairment Ending balance: individually evaluated for impairment Financing Receivable, by Credit Quality Indicator [Domain] Financing Receivable, Recorded Investment, Current Total Current Financing Receivable Credit Quality Indicators [Table Text Block] Schedule of loans by risk rating Financing Receivable, Recorded Investment, Past Due Total Past Due Financing Receivable, Collectively Evaluated for Impairment Ending balance: collectively evaluated for impairment Financing Receivable, Allowance for Credit Losses, Collectively Evaluated for Impairment Ending balance: collectively evaluated for impairment Gain on sale of loans Gain (Loss) on Sale of Mortgage Loans Gain on sale of other real estate owned Gains (Losses) on Sales of Other Real Estate Net gain on sale of other real estate owned Held-to-maturity Securities, Debt Maturities, after One Through Five Years, Net Carrying Amount After 1 year through 5 years Held-to-maturity Securities, Classified [Abstract] Securities held to maturity Held-to-maturity Securities, Debt Maturities, Net Carrying Amount [Abstract] Held to maturity, Amortized Cost Held-to-maturity Securities, Debt Maturities, without Single Maturity Date, Fair Value Securities without single maturity date Securities held to maturity, at amortized cost Held-to-maturity Securities, Current Held-to-maturity Securities, Debt Maturities, after Ten Years, Net Carrying Amount Over 10 years Held-to-maturity Securities, Unrecognized Holding Loss Gross Unrealized Losses Held-to-maturity Securities, Debt Maturities, Net Carrying Amount Total Held-to-maturity Securities, Debt Maturities, Rolling Year Two Through Five, Fair Value After 1 year through 5 years Held-to-maturity Securities, Debt Maturities, Fair Value, Rolling Maturity [Abstract] Held to maturity, Fair value Held-to-maturity Securities, Debt Maturities, Rolling after Ten Years, Fair Value Over 10 years Held-to-maturity Securities, Amortized Cost before Other than Temporary Impairment Amortized Cost Held-to-maturity Securities, Debt Maturities, without Single Maturity Date, Net Carrying Amount Securities without single maturity date Held-to-maturity Securities, Fair Value Disclosure Securities held to maturity Securities held to maturity, fair value (in dollars) Held-to-maturity Securities, Fair Value Fair Value Total Home Equity Line of Credit [Member] Home equity loans and lines of credit Held-to-maturity Securities, Unrecognized Holding Gain Gross Unrealized Gains Impaired Financing Receivable, Interest Income, Accrual Method [Abstract] Interest Income Recognized Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method Impaired loans without a valuation allowance Impaired Financing Receivable, with Related Allowance, Average Recorded Investment Impaired loans with a valuation allowance Impaired Financing Receivable, Average Recorded Investment [Abstract] Average Recorded Investment Impaired Financing Receivable, Unpaid Principal Balance [Abstract] Unpaid Principal Balance Impaired Financing Receivables [Table Text Block] Schedule of analysis of impaired loans Impaired Financing Receivable, with Related Allowance, Recorded Investment Impaired loans with a valuation allowance Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method Impaired loans with a valuation allowance Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance Impaired loans without a valuation allowance Impaired Financing Receivable, with No Related Allowance, Recorded Investment Impaired loans without a valuation allowance Impaired Financing Receivable, Related Allowance Impaired loans with a valuation allowance Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment Impaired loans without a valuation allowance Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance Impaired loans with a valuation allowance Impaired Financing Receivable, Recorded Investment [Abstract] Recorded Investment Income (Loss) from Operations before Extraordinary Items Net income CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME INCOME TAXES Income Tax Disclosure [Text Block] INCOME TAXES Income before income taxes Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Income taxes paid Income Taxes Paid Net change in deposits Increase (Decrease) in Deposits Decrease in accrued interest receivable Increase (Decrease) in Accrued Interest Receivable, Net Increase (Decrease) in Other Operating Assets and Liabilities, Net Net change in other assets and liabilities Decrease in Prepaid FDIC insurance Increase (Decrease) in Prepaid Expense Increase (Decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Incremental Common Shares Attributable to Participating Nonvested Shares with Non-forfeitable Dividend Rights Add: Weighted average unvested restricted shares with non-forfeitable dividend rights Incremental Common Shares Attributable to Share-based Payment Arrangements Options included in the computation of diluted earnings per share (in shares) Information Technology and Data Processing Data processing expenses Interest and dividend income: Interest and Dividend Income, Operating [Abstract] Loans, including fees Interest and Fee Income, Loans and Leases Securities Interest and Dividend Income, Securities Total interest expense Interest Expense Interest expense: Interest Expense [Abstract] Interest Income, Federal Funds Sold Short-term investments Long-term Federal Home Loan Bank advances Interest Expense, Federal Home Loan Bank and Federal Reserve Bank Advances, Long-term Deposits Interest Expense, Deposits Short-term Federal Home Loan Bank advances Interest Expense, Federal Home Loan Bank and Federal Reserve Bank Advances, Short-term Net interest income Interest Income (Expense), Net Securities sold under agreements to repurchase Interest Expense, Securities Sold under Agreements to Repurchase Accrued interest receivable Interest Receivable Total interest and dividend income Investment Income, Interest and Dividend Investment in Federal Home Loan Bank Stock, Fair Value Disclosure FHLB stock Investment Holdings [Line Items] SECURITIES Securities available for sale Investment Holdings [Table] Investments Classified by Contractual Maturity Date [Table Text Block] Schedule of amortized cost and estimated fair value of debt securities by contractual maturity Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Securities Salaries and employee benefits Labor and Related Expense Total liabilities Liabilities LIABILITIES AND STOCKHOLDERS' EQUITY Liabilities and Equity [Abstract] Total liabilities and stockholders' equity Liabilities and Equity Loans and Servicing Loans, allowance for loan losses (in dollars) Loans and Leases Receivable, Allowance Allowance for loan losses Beginning Balance Ending Balance Loans held for sale Loans Receivable Held-for-sale, Net Loans Held-for-sale, Fair Value Disclosure Loans held for sale Loans and Leases Receivable, Net Amount [Abstract] Other items: Loans, net of allowance for loan losses of $1,751,000 at September 30, 2012 and $1,824,000 at December 31, 2011 Loans and Leases Receivable, Net Amount Total loans, net Loans Receivable, Fair Value Disclosure Loans, net Loans, Notes, Trade and Other Receivables Disclosure [Text Block] Loans and Servicing Major Types of Debt Securities [Domain] Georgetown Bancorp, MHC Majority Shareholder [Member] Securities Summary of securities Marketable Securities [Table Text Block] Maximum of range Maximum [Member] Minimum of range Minimum [Member] Collateralized Mortgage Backed Securities [Member] Mortgage-backed securities Net Cash Provided by (Used in) Financing Activities, Continuing Operations [Abstract] Cash flows from financing activities: Net Cash Provided by (Used in) Operating Activities, Continuing Operations Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities, Continuing Operations [Abstract] Cash flows from operating activities: Net Cash Provided by (Used in) Continuing Operations Net change in cash and cash equivalents Net Cash Provided by (Used in) Investing Activities, Continuing Operations Net cash (used) provided by investing activities Net Income (Loss) Available to Common Stockholders, Basic Net income Net income Net income available to common stockholders (in dollars) Net interest income, after provision for loan losses Net Interest Income (Loss) after Provision for Loan Losses Net Cash Provided by (Used in) Financing Activities, Continuing Operations Net cash provided (used) by financing activities Net Cash Provided by (Used in) Investing Activities, Continuing Operations [Abstract] Cash flows from investing activities: Recent Accounting Pronouncements New Accounting Pronouncements and Changes in Accounting Principles [Text Block] Recent Accounting Pronouncements Other Noninterest Income, Other Non-interest income: Noninterest Income [Abstract] Non-interest expenses: Noninterest Expense [Abstract] Total non-interest income Noninterest Income Noninterest Expense Total non-interest expenses Total non-interest expenses Financing Receivable, Gross Total loans Ending balance Total Loans Occupancy, Net Occupancy and equipment expenses Basis of Presentation SUMMARY OF SIGNIFICANT ACCOUNTING POLICIES Organization, Consolidation, Basis of Presentation, Business Description and Accounting Policies [Text Block] Other Assets Other assets Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax Net unrealized gain (loss) on securities available for sale, net of related tax effects of $32,000 and $11,000 for the period ended September 30, 2012 and September 30, 2011, respectively Unrealized gain on securities available for sale Net unrealized gain (loss) on securities available for sale, related tax effects (in dollars) Other Comprehensive Income (Loss), Unrealized Holding Gain (Loss) on Securities Arising During Period, Tax Other general and administrative expenses Other General and Administrative Expense Other Real Estate Other real estate owned Other Real Estate, Foreclosed Assets, and Repossessed Assets Other real estate owned Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Parent [Abstract] Other comprehensive income, net of tax: Accrued expenses and other liabilities Other Accrued Liabilities Past Due Financing Receivables [Table Text Block] Summary of past-due and non-accrual loans Pass [Member] Pass Payments for (Proceeds from) Loans and Leases Loan originations, net Payments for (Proceeds from) Federal Home Loan Bank Stock Redemption of Federal Home Loan Bank stock Purchase of vested restricted shares to treasury stock Payments for Repurchase of Common Stock Purchase of premises and equipment Payments to Acquire Property, Plant, and Equipment Activity in securities available for sale: Payments to Acquire Available-for-sale Securities [Abstract] Payments to Acquire Available-for-sale Securities Purchases Principal balance of loans purchased Payments to Acquire Loans Held-for-investment Payments to Purchase Mortgage Loans Held-for-sale Loans originated for sale Pledged Financial Instruments, Not Separately Reported, Securities for Federal Home Loan Bank Fair value of qualified collateral to secure Federal Home Loan Bank (FHLB) of Boston advances Pledged Financial Instruments, Not Separately Reported, Securities for Repurchase Agreements Fair value of collateral to secure securities sold under agreements to repurchase Preferred stock, $0.01 par value per share: 50,000,000 shares authorized at September 30, 2012 and $0.10 par value per share: 1,000,000 shares authorized at December 31, 2011; none outstanding Preferred Stock, Value, Issued Preferred stock, shares authorized Preferred Stock, Shares Authorized Preferred stock, par value (in dollars per share) Preferred Stock, Par or Stated Value Per Share Preferred stock, shares outstanding Preferred Stock, Shares Outstanding Prepaid Expense and Other Assets Prepaid FDIC insurance Unpaid principal balances of mortgage loans serviced for others not included in the accompanying consolidated balance sheets Principal Amount Outstanding on Loans Managed and Securitized or Asset-backed Financing Arrangement Proceeds from (Payments for) in Securities Sold under Agreements to Repurchase Net change in securities sold under agreements to repurchase Net change in Federal Home Loan Bank advances with maturities of three months or less Proceeds from (Repayments of) Short-term Debt, Maturing in Three Months or Less Cash received from Georgetown Bancorp, MHC due to reorganization Proceeds from Noncontrolling Interests Net proceeds from issuance of common stock Proceeds from Issuance of Common Stock Maturities, prepayments and calls of securities held to maturity Proceeds from Maturities, Prepayments and Calls of Held-to-maturity Securities Maturities, prepayments and calls Proceeds from Maturities, Prepayments and Calls of Available-for-sale Securities Proceeds from Sale of Loans Held-for-investment Principal balance of portfolio loans sold Proceeds from Sale of Foreclosed Assets Proceeds from sale of other real estate owned Proceeds from sale of loans Proceeds from Sale of Mortgage Loans Held-for-sale Proceeds of Federal Home Loan Bank advances with maturities greater than three months Proceeds from Short-term Debt, Maturing in More than Three Months Professional fees Professional Fees PREMISES AND EQUIPMENT Premises and equipment, net Property, Plant and Equipment, Net PREMISES AND EQUIPMENT Property, Plant and Equipment Disclosure [Text Block] Provision for loan losses Provision for Loan and Lease Losses Provision QUARTERLY DATA (UNAUDITED) Quarterly Financial Information [Text Block] QUARTERLY DATA (UNAUDITED) Range [Axis] Range [Domain] Receivable Type [Domain] MINIMUM REGULATORY CAPITAL REQUIREMENTS MINIMUM REGULATORY CAPITAL REQUIREMENTS Regulatory Capital Requirements under Banking Regulations [Text Block] LOANS TO RELATED PARTIES Related Party Transactions Disclosure [Text Block] Related Party [Domain] LOANS TO RELATED PARTIES Repayments of Federal Home Loan Bank advances with maturities greater than three months Repayments of Short-term Debt, Maturing in More than Three Months SECURITIES SOLD UNDER AGREEMENTS TO REPURCHASE Repurchase Agreements, Resale Agreements, Securities Borrowed, and Securities Loaned Disclosure [Text Block] Residential Mortgage Backed Securities [Member] Residential mortgage-backed securities Residential Mortgage [Member] Residential loans: First mortgage loans on owner-occupied residential property Restricted Assets Disclosure [Text Block] RESTRICTIONS ON CASH AND AMOUNTS DUE FROM BANKS RESTRICTIONS ON CASH AND AMOUNTS DUE FROM BANKS Restricted Stock [Member] Non-vested Restricted Stock Restructuring and Related Activities Disclosure [Text Block] Corporate Structure Retained earnings Retained Earnings (Accumulated Deficit) Retained Earnings Retained Earnings [Member] Substandard [Member] Substandard Equity Incentive Plan Shareholders' Equity and Share-based Payments [Text Block] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Exercise Price Weighted Average Exercise Price (in dollars per share) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Exercisable Options, Weighted Average Exercise Price Weighted Average Exercise Price (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Exercisable at end of period (in dollars) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Exercisable at end of period (in years) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Outstanding at end of period (in years) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Outstanding Options, Weighted Average Remaining Contractual Term Weighted-Average Remaining Contractual Life Scenario, Unspecified [Domain] Schedule of Financing Receivable, Allowance for Credit Losses [Table] Schedule of Impaired Financing Receivable [Table] Schedule of Nonvested Share Activity [Table Text Block] Schedule of activity for non-vested restricted stock Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of activity for stock options Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Schedule of computation of earnings per common share Schedule of Financing Receivables Past Due [Table] Schedule of Financing Receivable, Recorded Investment, Credit Quality Indicator [Table] Schedule of Unrealized Loss on Investments [Table Text Block] Schedule of securities with gross unrealized losses aggregated by investment category and length of time that individual securities have been in a continuous loss position Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table Text Block] Schedule of options outstanding and exercisable Schedule of Share-based Compensation, Shares Authorized under Stock Option Plans, by Exercise Price Range [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of mortgage servicing rights capitalized and amortized with aggregate activity-related valuation allowances Schedule of Servicing Assets at Fair Value [Table Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Summary of loans Securities Loaned or Sold under Agreements to Repurchase, Fair Value Disclosure Securities sold under agreements to repurchase Securities sold under agreements to repurchase Securities Sold under Agreements to Repurchase. Servicing Asset at Amortized Value, Disposals Disposals Servicing Asset at Amortized Value, Fair Value Fair value of mortgage servicing assets Servicing Asset at Amortized Value, Additions Additions Servicing Asset at Amortized Value, Balance [Roll Forward] Mortgage servicing rights capitalized and amortized Servicing Asset at Amortized Cost Mortgage servicing assets, net Servicing Asset at Fair Value, Amount Capitalized mortgage servicing rights Servicing Asset at Amortized Value, Amortization Amortization Share-based Compensation Arrangement by Share-based Payment Award, Additional General Disclosures [Abstract] Additional Disclosures Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Number of Shares Stock-based compensation expense Share-based Compensation Share-based Compensation Arrangements by Share-based Payment Award, Options, Forfeitures in Period, Weighted Average Exercise Price Forfeited (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Granted (in dollars per share) Forfeiture of restricted stock (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeited in Period Forfeited (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value Outstanding at beginning of year (in dollars per share) Outstanding at end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Roll Forward] Weighted Average Grant Date Value Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Gross Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Equity Incentive Plan Unearned compensation - Restricted stock shares non-vested Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Outstanding at beginning of year (in shares) Outstanding at end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Vested (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Forfeited (in dollars per share) Share Price Closing stock price (in dollars per share) Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Granted (in dollars per share) Restricted stock granted in connection with equity incentive plan (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Granted (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Exercisable at end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Vested (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value Weighted average fair value of options granted during the period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Exercisable at end of period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Number of Shares Share-based Compensation Arrangement by Share-based Payment Award, Options, Forfeitures in Period Forfeited (in shares) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Exercisable Options Number Exercisable at the end of the period (in shares) Exercise Price Range [Axis] Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items] Equity Incentive Plan Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Domain] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Outstanding at beginning of year (in dollars per share) Outstanding at end of period (in dollars per share) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Outstanding at end of period (in dollars) Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range, Number of Outstanding Options Number Outstanding at the end of the period (in shares) Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Outstanding at beginning of year (in shares) Outstanding at end of period (in shares) Award Type [Domain] SHORT-TERM INVESTMENTS Short-term investments Short-term Investments. Special Mention [Member] Special mention Statement [Table] Scenario [Axis] Statement Statement [Line Items] CONSOLIDATED STATEMENTS OF CHANGES IN STOCKHOLDERS' EQUITY CONSOLIDATED STATEMENTS OF CASH FLOWS Equity Components [Axis] CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION Stock Options [Member] Stock Options Restricted stock granted in connection with equity incentive plan (12,606 and 25,998 shares for the period ended September 30, 2012 and September 30, 2011, respectively) Stock Issued During Period, Value, Restricted Stock Award, Gross Reissuance of treasury stock (7,027 and 5,796 shares for the period ended September 30, 2012 and September 30, 2011, respectively) Stock Issued During Period, Value, Treasury Stock Reissued Reissuance of treasury stock (in shares) Stock Issued During Period, Shares, Treasury Stock Reissued Forfeiture of restricted stock (1,620 and 7,650 shares for the period ended September 30, 2012 and September 30, 2011, respectively) Stock Issued During Period, Value, Restricted Stock Award, Forfeitures Stockholders' equity: Stockholders' Equity Attributable to Parent [Abstract] Total stockholders' equity Stockholders' Equity Attributable to Parent Balance Balance Stockholders' Equity, Period Increase (Decrease) Subsidiaries [Member] The Bank Subsidiary or Equity Method Investee, Cumulative Percentage Ownership after All Transactions Percentage of common stock owned Supplementary information: Supplemental Cash Flow Information [Abstract] Transfer to Other Real Estate Loans transferred to other real estate owned Treasury stock, at cost (133,347 shares at December 31, 2011) Treasury Stock, Value Treasury stock, shares Treasury Stock, Shares Treasury Stock Treasury Stock [Member] Retirement of treasury stock Treasury Stock, Retired, Cost Method, Amount Purchase of treasury stock (986 and 280 shares for the period ended September 30, 2012 and September 30, 2011, respectively) Treasury Stock, Value, Acquired, Cost Method Purchase of treasury stock (in shares) Treasury Stock, Shares, Retired Troubled Debt Restructurings on Financing Receivables [Table Text Block] Summary of loans modified and considered as troubled debt restructurings Unlikely to be Collected Financing Receivable [Member] Loss Unamortized Loan Commitment and Origination Fees and Unamortized Discounts or Premiums Net deferred loan costs US Government-sponsored Enterprises Debt Securities [Member] Government-sponsored enterprise obligations Weighted Average Number of Shares Outstanding, Basic [Abstract] Basic common shares: Weighted Average Number of Shares, Employee Stock Ownership Plan Shares Not Committed to be Released Less: Weighted average unallocated ESOP shares Weighted Average Number of Shares Issued, Basic Weighted average shares outstanding Basic (in shares) Weighted Average Number of Shares Outstanding, Basic Basic weighted average common shares outstanding Diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Diluted weighted average common shares outstanding Weighted Average Number Diluted Shares Outstanding Adjustment Dilutive potential common shares