Class of Stock [Axis] Consolidated Statements of Financial Condition [Abstract] Cash and cash equivalents Total assets Total liabilities Total Broadway Financial Corporation and Subsidiary stockholders’ equity Total liabilities and equity Consolidated Statements of Operations and Comprehensive Income [Abstract] Total interest income Total interest expense Net interest income Net interest income after provision for (recapture of) credit losses Total non-interest income Total non-interest expense Income (loss) before income taxes Net income (loss) Net income (loss) Net income (loss) attributable to Broadway Financial Corporation Net income (loss) attributable to Broadway Financial Corporation Net income (loss) attributable to common stockholders Other comprehensive (loss) income, net of tax Other comprehensive income (loss), net of tax Comprehensive income attributable to Broadway Financial Corporation Consolidated Statements of Cash Flows [Abstract] Title and Position [Axis] Net cash provided by (used in) operating activities Net cash (used in) provided by investing activities Net cash provided by (used in) financing activities Net change in cash and cash equivalents Cash and cash equivalents at beginning of the period Cash and cash equivalents at end of the period Consolidated Statements of Changes in Equity [Abstract] Balance Balance Equity Components [Axis] Basis of Financial Statement Presentation [Abstract] Earnings (Loss) Per Share and Equity [Abstract] Net income (loss) allocated to common stock Weighted average common shares outstanding for diluted earnings (loss) per common share (in Shares) Securities [Abstract] Financial Instrument [Axis] Amortized cost Amortized cost Gross unrealized gains Gross unrealized gains Gross unrealized losses Gross unrealized losses Fair value Securities available-for-sale, at fair value (amortized cost of $337,681 and $265,371) Fair value Securities available-for-sale Total, fair value Total, unrealized losses Loans Receivable Held for Investment [Abstract] Financing Receivable Portfolio Segment [Axis] Class of Financing Receivable [Axis] Total Loans Recorded total loans Loans receivable, net Loans receivable held for investment, net of allowance of $10,799 and $9,424 Loans receivable Beginning balance Ending balance Allowance for loan losses Allowance for credit losses Allowance for credit losses Collateral Held [Axis] Financial Asset, Aging [Axis] Internal Credit Assessment [Axis] Total Loans, charge-offs Charge-offs Goodwill and Core Deposit Intangible [Abstract] Balance at the beginning of the period Balance at the end of the period Net core deposit intangible Core deposit intangible, net Balance at the beginning of the period Balance at the end of the period Intangible Asset, Finite-Lived, Class [Axis] Derivatives [Abstract] Derivative Instrument [Axis] Hedging Designation [Axis] Borrowings [Abstract] Fair Value [Abstract] Fair Value Hierarchy and NAV [Axis] Measurement Frequency [Axis] Valuation Approach and Technique [Axis] Statistical Measurement [Axis] Measurement Input Type [Axis] Measurement Basis [Axis] Stock-based Compensation [Abstract] Outstanding at the beginning of the period (in Shares) Outstanding at the end of the period (in shares) ESOP Plan [Abstract] Total ESOP shares (in Shares) Regulatory Matters [Abstract] Income Taxes [Abstract] Concentrations [Abstract] Document Type Document Quarterly Report Document Period End Date Document Fiscal Year Focus Document Transition Report Entity File Number Entity Registrant Name Entity Incorporation, State or Country Code Entity Tax Identification Number Entity Address, Address Line One Entity Address, City or Town Entity Address, State or Province Entity Address, Postal Zip Code City Area Code Local Phone Number Title of 12(b) Security Trading Symbol Security Exchange Name Entity Current Reporting Status Entity Interactive Data Current Entity Filer Category Entity Small Business Entity Emerging Growth Company Entity Shell Company Entity Common Stock, Shares Outstanding Entity Central Index Key Amendment Flag Document Fiscal Period Focus Current Fiscal Year End Date Assets: Cash and due from banks Interest-bearing deposits in other banks Accrued interest receivable Federal Home Loan Bank (“FHLB”) stock Federal Reserve Bank (“FRB”) stock Office properties and equipment, net Bank owned life insurance Deferred tax assets, net Other assets Liabilities and equity Liabilities: Deposits Borrowings Securities sold under agreements to repurchase Accrued expenses and other liabilities Equity: Preferred stock Capital investment (in Dollars) Preferred stock, shares authorized (in Shares) Preferred stock, shares issued (in Shares) Preferred stock, shares outstanding (in Shares) Preferred stock, liquidation value (in Dollars per share) Common stock Common stock, par value (in Dollars per share) Common stock, shares authorized (in Shares) Common stock, shares issued (in Shares) Common stock, shares outstanding (in Shares) Additional paid-in capital Accumulated deficit Accumulated other comprehensive loss, net of tax Treasury stock, shares (in Shares) Non-controlling interest Interest income: Interest and fees on loans receivable Interest on available-for-sale securities Other interest income Interest expense: Interest on deposits Interest on borrowings Provision for (recapture of) credit losses Provision for credit losses Non-interest income: Service charges Grants Earnings on bank owned life insurance Earnings on bank owned life insurance Management fees Other Non-interest expense: Compensation and benefits Occupancy expense Information services Professional services Advertising and promotional expense Supervisory costs Corporate insurance Amortization of core deposit intangible Amortization Operational loss Other Income tax expense (benefit) Less: Net income (loss) attributable to non-controlling interest Less: Preferred stock dividends Other comprehensive (loss) income, net of tax: Unrealized (losses) gains on securities available-for-sale arising during the period Income tax effect Comprehensive income Earnings (loss) per common share-basic (in Dollars per share) Earnings (loss) per common share - basic (in Dollars per share) Earnings (loss) per common share-diluted (in Dollars per share) Earnings (loss) per common share - diluted (in Dollars per share) Cash flows from operating activities: Adjustments to reconcile net income (loss) to net cash provided by (used in) operating activities: Depreciation and amortization Accretion of purchase accounting marks on loans Director compensation expense-common stock ESOP compensation expense Compensation expense related to ESOP Change in assets and liabilities: Net change in accrued expenses and other liabilities Cash flows from investing activities: Principal payments on and maturities of available-for-sale securities Proceeds from redemption of FHLB stock Cash flows from financing activities: Net change in deposits