$RBB
RBB Bancorp Stock $rbb

$rbb Overview Financials Valuation SEC Filings Company Website

2019 Q4 Form 10-Q Financial Statement

#000156459019042917 Filed on November 12, 2019

Income Statement

Concept	2019 Q4	2019 Q3	2018 Q3
Revenue	$33.91M	$34.67M	$24.47M
YoY Change	-3.62%	41.66%	33.4%
Cost Of Revenue
YoY Change
Gross Profit
YoY Change
Gross Profit Margin
Selling, General & Admin
YoY Change
% of Gross Profit
Research & Development
YoY Change
% of Gross Profit
Depreciation & Amortization	$1.700M	$1.800M	$500.0K
YoY Change	112.5%	260.0%	66.67%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$10.78M	$11.16M	$5.857M
YoY Change	12.35%	90.49%	61.89%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$14.82M	$11.70M	$10.37M
YoY Change	8.38%	12.81%	-2.37%
Income Tax	$4.149M	$3.689M	$2.041M
% Of Pretax Income	27.99%	31.53%	19.68%
Net Earnings	$10.68M	$8.012M	$8.331M
YoY Change	12.49%	-3.83%	26.02%
Net Earnings / Revenue	31.48%	23.11%	34.04%
Basic Earnings Per Share	$0.53	$0.40	$0.50
Diluted Earnings Per Share	$0.52	$0.39	$0.48
COMMON SHARES
Basic Shares Outstanding	20.03M	20.07M	16.64M
Diluted Shares Outstanding		20.43M	17.43M

Balance Sheet

Concept	2019 Q4	2019 Q3	2018 Q3
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$181.8M	$183.1M	$171.6M
Short-Term Investments
Other Short-Term Assets
YoY Change
Inventory
Prepaid Expenses
Receivables
Other Receivables
Total Short-Term Assets
YoY Change
LONG-TERM ASSETS
Property, Plant & Equipment	$16.81M	$16.87M	$8.100M
YoY Change	-2.85%	108.28%	28.57%
Goodwill	$58.60M	$58.38M	$29.94M
YoY Change	0.37%	95.0%	0.0%
Intangibles
YoY Change
Long-Term Investments
YoY Change
Other Assets	$2.300M	$4.400M	$7.300M
YoY Change	-50.0%	-39.73%	-23.16%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$2.789B	$2.820B	$2.137B
YoY Change	-6.24%	31.98%	30.08%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$17.40M	$20.30M	$13.20M
YoY Change	-20.55%	53.79%	23.36%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$17.40M	$20.30M	$13.20M
YoY Change	-20.55%	53.79%	23.36%
LONG-TERM LIABILITIES
Long-Term Debt	$113.7M	$113.6M	$53.10M
YoY Change	0.44%	113.94%	0.38%
Other Long-Term Liabilities	$800.0K	$600.0K	$600.0K
YoY Change	14.29%	0.0%	20.0%
Total Long-Term Liabilities	$114.5M	$114.2M	$53.70M
YoY Change	0.53%	112.66%	0.56%
TOTAL LIABILITIES
Total Short-Term Liabilities	$17.40M	$20.30M	$13.20M
Total Long-Term Liabilities	$114.5M	$114.2M	$53.70M
Total Liabilities	$2.381B	$2.421B	$1.842B
YoY Change	-8.41%	31.47%	33.23%
SHAREHOLDERS EQUITY
Retained Earnings	$112.0M	$103.4M
YoY Change	37.28%
Common Stock	$295.3M	$295.1M
YoY Change	0.36%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$407.6M	$398.8M	$295.0M
YoY Change
Total Liabilities & Shareholders Equity	$2.789B	$2.820B	$2.137B
YoY Change	-6.24%	31.99%	30.08%

Cashflow Statement

Concept	2019 Q4	2019 Q3	2018 Q3
OPERATING ACTIVITIES
Net Income	$10.68M	$8.012M	$8.331M
YoY Change	12.49%	-3.83%	26.02%
Depreciation, Depletion And Amortization	$1.700M	$1.800M	$500.0K
YoY Change	112.5%	260.0%	66.67%
Cash From Operating Activities	$209.5M	$11.80M	-$80.50M
YoY Change	252.69%	-114.66%	825.29%
INVESTING ACTIVITIES
Capital Expenditures	-$400.0K	-$200.0K	-$1.000M
YoY Change	0.0%	-80.0%
Acquisitions
YoY Change
Other Investing Activities	-$170.5M	-$42.30M	-$130.8M
YoY Change	140.14%	-67.66%	46.8%
Cash From Investing Activities	-$171.0M	-$42.40M	-$131.8M
YoY Change	139.5%	-67.83%	47.92%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	-39.80M	8.100M	311.0M
YoY Change	237.29%	-97.4%	207.62%
NET CHANGE
Cash From Operating Activities	209.5M	11.80M	-80.50M
Cash From Investing Activities	-171.0M	-42.40M	-131.8M
Cash From Financing Activities	-39.80M	8.100M	311.0M
Net Change In Cash	-1.300M	-22.50M	98.70M
YoY Change	-94.54%	-122.8%	2890.91%
FREE CASH FLOW
Cash From Operating Activities	$209.5M	$11.80M	-$80.50M
Capital Expenditures	-$400.0K	-$200.0K	-$1.000M
Free Cash Flow	$209.9M	$12.00M	-$79.50M
YoY Change	251.0%	-115.09%	813.79%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value
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	dei	Entity Ex Transition Period EntityExTransitionPeriod	false
	dei	Entity Small Business EntitySmallBusiness	false
	dei	Document Period End Date DocumentPeriodEndDate	2019-09-30
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	dei	Document Type DocumentType	10-Q
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	dei	Amendment Flag AmendmentFlag	false
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	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
	dei	Trading Symbol TradingSymbol	RBB
	dei	Entity Shell Company EntityShellCompany	false
	dei	Entity File Number EntityFileNumber	001-38149
	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2019
	dei	Entity Registrant Name EntityRegistrantName	RBB BANCORP
	dei	Entity Tax Identification Number EntityTaxIdentificationNumber	272776416
	dei	Entity Address Address Line1 EntityAddressAddressLine1	1055 Wilshire Blvd.
	dei	Entity Central Index Key EntityCentralIndexKey	0001499422
	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
	dei	Entity Address Address Line2 EntityAddressAddressLine2	Suite 1200
	dei	Entity Address City Or Town EntityAddressCityOrTown	Los Angeles
	dei	Entity Address State Or Province EntityAddressStateOrProvince	California
	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	Q3
	dei	Entity Address Country EntityAddressCountry	UNITED STATES
	dei	Entity Address Postal Zip Code EntityAddressPostalZipCode	90017
	dei	City Area Code CityAreaCode	213
	dei	Local Phone Number LocalPhoneNumber	627-9888
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CY2018Q4	rbb	Reserve For Unfunded Commitments ReserveForUnfundedCommitments	688000
CY2019Q3	us-gaap	Advances From Federal Home Loan Banks AdvancesFromFederalHomeLoanBanks	35000000
CY2019Q3	us-gaap	Long Term Debt LongTermDebt	103964000
CY2019Q3	rbb	Subordinated Debentures SubordinatedDebentures	9632000
CY2018Q4	rbb	Subordinated Debentures SubordinatedDebentures	9506000
CY2019Q3	rbb	Accrued Interest And Other Liabilities AccruedInterestAndOtherLiabilities	20324000
CY2019Q3	us-gaap	Liabilities Liabilities	2421461000
CY2019Q3	us-gaap	Commitments And Contingencies CommitmentsAndContingencies
CY2019Q3	us-gaap	Preferred Stock Value PreferredStockValue
CY2019Q3	us-gaap	Common Stock Value CommonStockValue	288862000
CY2019Q3	us-gaap	Additional Paid In Capital Common Stock AdditionalPaidInCapitalCommonStock	6202000
CY2019Q3	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	103374000
CY2019Q3	us-gaap	Minority Interest MinorityInterest	72000
CY2019Q3	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	331000
CY2019Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	398841000
CY2019Q3	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	2820302000
CY2019Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	32902000
CY2019Q3	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	429000
	us-gaap	Interest And Dividend Income Securities InterestAndDividendIncomeSecurities	1722000
CY2019Q3	rbb	Dividend Income On Fhlb Stock DividendIncomeOnFHLBStock	238000
CY2018Q3	rbb	Dividend Income On Fhlb Stock DividendIncomeOnFHLBStock	132000
CY2019Q3	us-gaap	Interest Income Federal Funds Sold InterestIncomeFederalFundsSold	397000
CY2019Q3	us-gaap	Interest Expense Long Term Debt And Capital Securities InterestExpenseLongTermDebtAndCapitalSecurities	1921000
CY2019Q3	rbb	Interest On Other Borrowed Funds InterestOnOtherBorrowedFunds	81000
CY2018Q3	rbb	Interest On Other Borrowed Funds InterestOnOtherBorrowedFunds	793000
	rbb	Interest On Other Borrowed Funds InterestOnOtherBorrowedFunds	2857000
	rbb	Interest On Other Borrowed Funds InterestOnOtherBorrowedFunds	992000
CY2019Q3	us-gaap	Interest Expense InterestExpense	11157000
CY2019Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	23512000
CY2019Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	824000
CY2019Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	22688000
CY2019Q3	rbb	Service Charges Fees And Other Income ServiceChargesFeesAndOtherIncome	934000
CY2019Q3	us-gaap	Gain Loss On Sales Of Loans Net GainLossOnSalesOfLoansNet	813000
CY2019Q3	rbb	Loan Servicing Fees Net Of Amortization LoanServicingFeesNetOfAmortization	827000
CY2019Q3	rbb	Recoveries On Loans Acquired In Business Combinations RecoveriesOnLoansAcquiredInBusinessCombinations	12000
	us-gaap	Equity Securities Fv Ni Unrealized Gain Loss EquitySecuritiesFvNiUnrealizedGainLoss	147000
CY2019Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	195000
CY2018Q3	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	200000
CY2019Q3	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	7000
	us-gaap	Debt Securities Available For Sale Gain Loss DebtSecuritiesAvailableForSaleGainLoss	7000
CY2019Q3	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	11000
	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	11000
	us-gaap	Gain Loss On Disposition Of Assets1 GainLossOnDispositionOfAssets1	6000
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	926000
	us-gaap	Marketing And Advertising Expense MarketingAndAdvertisingExpense	785000
CY2019Q3	rbb	Core Deposit Premium Expense CoreDepositPremiumExpense	384000
CY2018Q3	rbb	Core Deposit Premium Expense CoreDepositPremiumExpense	76000
CY2018Q3	rbb	Foreclosed Real Estate Expense Income ForeclosedRealEstateExpenseIncome	5000
CY2018Q3	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	348000
CY2018Q3	us-gaap	Other Noninterest Expense OtherNoninterestExpense	665000
CY2019Q3	us-gaap	Noninterest Expense NoninterestExpense	13786000
CY2018Q3	us-gaap	Noninterest Expense NoninterestExpense	8654000
CY2018Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	10372000
CY2018Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2041000
CY2019Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	11701000
CY2019Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	3689000
CY2019Q3	us-gaap	Net Income Loss NetIncomeLoss	8012000
CY2019Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.39
CY2019Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.10
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	494000
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	63422000
	us-gaap	Noninterest Expense NoninterestExpense	25134000
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	32527000
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	11963000
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.62
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.40
	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	1.54
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.30
	us-gaap	Income Loss From Continuing Operations Before Income Taxes Extraordinary Items Noncontrolling Interest IncomeLossFromContinuingOperationsBeforeIncomeTaxesExtraordinaryItemsNoncontrollingInterest	40497000
	rbb	Insurance And Regulatory Assessments InsuranceAndRegulatoryAssessments	754000
	rbb	Insurance And Regulatory Assessments InsuranceAndRegulatoryAssessments	645000
	rbb	Core Deposit Premium Expense CoreDepositPremiumExpense	1157000
	rbb	Core Deposit Premium Expense CoreDepositPremiumExpense	235000
	rbb	Foreclosed Real Estate Expense Income ForeclosedRealEstateExpenseIncome	161000
	rbb	Foreclosed Real Estate Expense Income ForeclosedRealEstateExpenseIncome	12000
	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	240000
	us-gaap	Business Combination Integration Related Costs BusinessCombinationIntegrationRelatedCosts	571000
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2641000
	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2580000
	us-gaap	Noninterest Expense NoninterestExpense	44010000
	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.26
	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	5913000
CY2018Q3	us-gaap	Net Income Loss NetIncomeLoss	8331000
	us-gaap	Net Income Loss NetIncomeLoss	28534000
	us-gaap	Net Income Loss NetIncomeLoss	26614000
CY2019Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2018Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.50
	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	1.42
CY2018Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.48
CY2018Q3	us-gaap	Common Stock Dividends Per Share Cash Paid CommonStockDividendsPerShareCashPaid	0.09
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-297000
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	2380000
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-1523000
CY2019Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	7000
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Before Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesBeforeTax	7000
CY2019Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	487000
CY2018Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	-297000
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	2373000
	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Before Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentBeforeTaxPortionAttributableToParent	-1523000
CY2019Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	148000
CY2018Q3	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-88000
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	706000
	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-450000
CY2019Q3	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	2000
	us-gaap	Other Comprehensive Income Loss Reclassification Adjustment From Aoci For Sale Of Securities Tax OtherComprehensiveIncomeLossReclassificationAdjustmentFromAOCIForSaleOfSecuritiesTax	2000
CY2019Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	146000
CY2018Q3	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-88000
	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	704000
	us-gaap	Other Comprehensive Income Availableforsale Securities Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesTaxPortionAttributableToParent	-450000
CY2019Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	341000
CY2018Q3	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-209000
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	1669000
	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-1073000
CY2019Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	8353000
CY2018Q3	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	8122000
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	30203000
	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	25541000
CY2019Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	393820000
CY2019Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	147000
CY2019Q3	us-gaap	Dividends Cash DividendsCash	2016000
CY2019Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1727000
CY2019Q3	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	3190000
CY2018Q2	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	286202000
CY2018Q3	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	184000
CY2018Q3	us-gaap	Dividends Cash DividendsCash	1489000
CY2018Q3	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	1979000
CY2018Q3	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	294998000
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	543000
	us-gaap	Dividends Cash DividendsCash	6030000
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	2694000
	us-gaap	Stock Repurchased During Period Value StockRepurchasedDuringPeriodValue	3190000
CY2017Q4	us-gaap	Stockholders Equity Including Portion Attributable To Noncontrolling Interest StockholdersEquityIncludingPortionAttributableToNoncontrollingInterest	265176000
	us-gaap	Adjustments To Additional Paid In Capital Sharebased Compensation Requisite Service Period Recognition Value AdjustmentsToAdditionalPaidInCapitalSharebasedCompensationRequisiteServicePeriodRecognitionValue	446000
	us-gaap	Dividends Cash DividendsCash	4234000
	us-gaap	Stock Issued During Period Value Stock Options Exercised StockIssuedDuringPeriodValueStockOptionsExercised	8069000
	us-gaap	Profit Loss ProfitLoss	28534000
	us-gaap	Profit Loss ProfitLoss	26614000
	rbb	Depreciation And Amortization Of Premises And Equipment DepreciationAndAmortizationOfPremisesAndEquipment	1451000
	rbb	Depreciation And Amortization Of Premises And Equipment DepreciationAndAmortizationOfPremisesAndEquipment	922000
	rbb	Net Accretion Of Investment Securities And Other NetAccretionOfInvestmentSecuritiesAndOther	2537000
	rbb	Net Accretion Of Investment Securities And Other NetAccretionOfInvestmentSecuritiesAndOther	670000
	rbb	Amortization Of Investment In Affordable Housing Tax Credits AmortizationOfInvestmentInAffordableHousingTaxCredits	675000
	rbb	Amortization Of Investment In Affordable Housing Tax Credits AmortizationOfInvestmentInAffordableHousingTaxCredits	483000
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	3637000
	us-gaap	Amortization Of Intangible Assets AmortizationOfIntangibleAssets	2404000
	us-gaap	Share Based Compensation ShareBasedCompensation	544000
	us-gaap	Share Based Compensation ShareBasedCompensation	446000
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-438000
	us-gaap	Deferred Income Taxes And Tax Credits DeferredIncomeTaxesAndTaxCredits	-1573000
	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	6000
	rbb	Increase Decrease In Cash Surrender Value On Life Insurance IncreaseDecreaseInCashSurrenderValueOnLifeInsurance	580000
	rbb	Increase Decrease In Cash Surrender Value On Life Insurance IncreaseDecreaseInCashSurrenderValueOnLifeInsurance	598000
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	102887000
	us-gaap	Payments For Origination And Purchases Of Loans Held For Sale PaymentsForOriginationAndPurchasesOfLoansHeldForSale	338129000
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	347623000
	us-gaap	Proceeds From Sale Of Loans Held For Sale ProceedsFromSaleOfLoansHeldForSale	170179000
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-4470000
	us-gaap	Other Operating Activities Cash Flow Statement OtherOperatingActivitiesCashFlowStatement	-1597000
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	266981000
	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	-143965000
	rbb	Increase Decrease In Interest Earning Deposits IncreaseDecreaseInInterestEarningDeposits	-349000
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	112656000
	us-gaap	Payments To Acquire Available For Sale Securities Debt PaymentsToAcquireAvailableForSaleSecuritiesDebt	59288000
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	109977000
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	35541000
	us-gaap	Proceeds From Sale Of Available For Sale Securities Debt ProceedsFromSaleOfAvailableForSaleSecuritiesDebt	6136000
	us-gaap	Proceeds From Maturities Prepayments And Calls Of Held To Maturity Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfHeldToMaturitySecurities	1205000
	rbb	Proceeds From Redemption Of Federal Home Loan Bank Stock ProceedsFromRedemptionOfFederalHomeLoanBankStock	1751000
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	8641000
	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	8008000
	rbb	Payments For Purchase Of Investment In Qualified Affordable Housing Projects PaymentsForPurchaseOfInvestmentInQualifiedAffordableHousingProjects	4500000
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	45735000
	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	212688000
	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	819000
	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	17000
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	954000
	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	2105000
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-48430000
	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-251048000
	rbb	Increase Decrease In Demand Deposits And Savings Accounts IncreaseDecreaseInDemandDepositsAndSavingsAccounts	-77905000
	rbb	Increase Decrease In Demand Deposits And Savings Accounts IncreaseDecreaseInDemandDepositsAndSavingsAccounts	52658000
	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	185771000
	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	175025000
	rbb	Increase Decrease In Advances From Federal Home Loan Banks IncreaseDecreaseInAdvancesFromFederalHomeLoanBanks	284500000
	rbb	Increase Decrease In Advances From Federal Home Loan Banks IncreaseDecreaseInAdvancesFromFederalHomeLoanBanks	-185000000
	us-gaap	Payments Of Dividends PaymentsOfDividends	6030000
	us-gaap	Payments Of Dividends PaymentsOfDividends	4234000
	us-gaap	Payments For Repurchase Of Common Stock PaymentsForRepurchaseOfCommonStock	3190000
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	2694000
	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	8069000
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	-183160000
	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	416518000
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	35391000
	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents Period Increase Decrease Excluding Exchange Rate Effect CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect	21505000
CY2018Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	147685000
CY2017Q4	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	150048000
CY2019Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	183076000
CY2018Q3	us-gaap	Cash Cash Equivalents Restricted Cash And Restricted Cash Equivalents CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	171553000
	us-gaap	Interest Paid Net InterestPaidNet	24600000
	us-gaap	Interest Paid Net InterestPaidNet	2778000
	us-gaap	Income Taxes Paid IncomeTaxesPaid	13010000
	us-gaap	Income Taxes Paid IncomeTaxesPaid	7785000
	us-gaap	Transfer To Other Real Estate TransferToOtherRealEstate	974000
	rbb	Allowance For Loan And Lease Losses Loans Acquired And Sold AllowanceForLoanAndLeaseLossesLoansAcquiredAndSold	1731000
	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	32000
	us-gaap	Transfer Of Portfolio Loans And Leases To Held For Sale1 TransferOfPortfolioLoansAndLeasesToHeldForSale1	138045000
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	1669000
	us-gaap	Other Comprehensive Income Loss Available For Sale Securities Adjustment Before Tax OtherComprehensiveIncomeLossAvailableForSaleSecuritiesAdjustmentBeforeTax	-1073000
	us-gaap	Nature Of Operations NatureOfOperations	<p style="text-align:justify;margin-bottom:0pt;margin-top:0pt;text-indent:0%;font-weight:bold;font-family:Times New Roman;font-size:10pt;font-style:normal;text-transform:none;font-variant: normal;">NOTE 1 - BUSINESS DESCRIPTION</p> <p style="text-align:justify;margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">RBB Bancorp (“RBB”) is a financial holding company registered under the Bank Holding Company Act of 1956, as amended. RBB Bancorp’s principal business is to serve as the holding company for its wholly-owned banking subsidiaries, Royal Business Bank ("Bank") and RBB Asset Management Company ("RAM"), collectively referred to herein as "the Company". RAM was formed to hold and manage problem assets acquired in business combinations.</p> <p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">At September 30, 2019, the Company had total consolidated assets of $2.8 billion, gross consolidated loans (held for investment and held for sale) of $2.4 billion, total consolidated deposits of $2.3 billion and total consolidated stockholders' equity of $398.8 million. RBB’s common stock trades on the Nasdaq Global Select Market under the symbol “RBB”.</p> <p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Bank provides business banking services to the Chinese-American communities in Los Angeles County, Orange County, Ventura County and in Las Vegas and the New York City metropolitan area, including remote deposit, E-banking, mobile banking, commercial and investor real estate loans, business loans and lines of credit, Small Business Administration (“SBA”) 7A and 504 loans, mortgage loans, trade finance and a full range of depository accounts. </p> <p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company operates full-service banking offices in Arcadia, Cerritos, Diamond Bar, Irvine, Los Angeles, Monterey Park, Oxnard, Rowland Heights, San Gabriel, Silver Lake, Torrance, West Los Angeles, and Westlake Village, California; Las Vegas, Nevada; and Manhattan, Brooklyn, Flushing, and Elmhurst, New York. The Company’s primary source of revenue is providing loans to customers, who are predominantly small and middle-market businesses and individuals.</p> <p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company generates its revenue primarily from interest received on loans and leases and, to a lesser extent, from interest received on investment securities.  The Company also derives income from noninterest sources, such as fees received in connection with various lending and deposit services, residential mortgage loan originations, loan servicing, gain on sales of loans and wealth management services.  The Company’s principal expenses include interest expense on deposits and subordinated debentures, and operating expenses, such as salaries and employee benefits, occupancy and equipment, data processing, and income tax expense. </p> <p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The Company has completed five acquisitions from July 8, 2011 through October 15, 2018, including the acquisition of First American International Corp. (“FAIC”) and its wholly-owned subsidiary, First American International Bank (“FAIB”), which closed on October 15, 2018. FAIB operated three branches in Queens, two in Manhattan, and two in Brooklyn, New York with an operating center and loan production offices in Brooklyn and an administrative center in Manhattan.  As part of the FAIC acquisition, the Company acquired FAIB Capital Corp. (“FAICC”) that was formed on January 29, 2014.  FAICC is a real estate investment trust subsidiary of the Bank.  See Note 3 – Acquisition, for more information about the FAIC acquisition transactions. All of the Company’s acquisitions have been accounted for using the acquisition method of accounting and, accordingly, the operating results of the acquired entities have been included in the consolidated financial statements from their respective acquisition dates. </p> <p style="text-align:justify;margin-top:12pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">On September 5, 2019 the Company entered in an agreement to acquire PGB Holdings Inc. and its wholly-owned subsidiary, Pacific Global Bank (“PGB”), for $32.5 million in cash.  As of September 30, 2019, PGB had approximately $224.5 million in assets and three branches in Chicago, Illinois.</p>
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	2136968000
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	6829000
	us-gaap	Use Of Estimates UseOfEstimates	<p style="text-align:justify;margin-top:18pt;margin-bottom:0pt;text-indent:0%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;"><font style="text-decoration:underline;">Use of Estimates in the Preparation of Financial Statements</font></p> <p style="text-align:justify;margin-top:6pt;margin-bottom:0pt;text-indent:4.54%;font-family:Times New Roman;font-size:10pt;font-weight:normal;font-style:normal;text-transform:none;font-variant: normal;">The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities, disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.  Actual results could differ from those estimates.</p>
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	3038000
	us-gaap	Proceeds From Sale Of Loans Held For Investment ProceedsFromSaleOfLoansHeldForInvestment	2400000000
	us-gaap	Number Of Businesses Acquired NumberOfBusinessesAcquired	5
CY2019Q3	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	72451000
CY2018Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	75663000
CY2019Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	542000
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	106000
CY2019Q3	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	70000
CY2018Q4	us-gaap	Available For Sale Debt Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleDebtSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	2007000
CY2019Q3	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	329000
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Gain HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingGain	143000
CY2018Q4	us-gaap	Held To Maturity Securities Accumulated Unrecognized Holding Loss HeldToMaturitySecuritiesAccumulatedUnrecognizedHoldingLoss	164000
CY2019Q3	rbb	Number Of Investment Securities Pledged As Collateral NumberOfInvestmentSecuritiesPledgedAsCollateral	1
CY2018Q4	rbb	Number Of Investment Securities Pledged As Collateral NumberOfInvestmentSecuritiesPledgedAsCollateral	1
CY2019Q3	us-gaap	Security Owned And Pledged As Collateral Fair Value SecurityOwnedAndPledgedAsCollateralFairValue	665000
CY2018Q4	us-gaap	Security Owned And Pledged As Collateral Fair Value SecurityOwnedAndPledgedAsCollateralFairValue	697000
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	16513000
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	27326000
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	24596000
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	4016000
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	16517000
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	27452000
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	24939000
CY2019Q3	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	4015000
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearNetCarryingAmount	125000
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities After One Through Five Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterOneThroughFiveYearsNetCarryingAmount	2951000
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsNetCarryingAmount	856000
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Net Carrying Amount HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsNetCarryingAmount	4792000
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities Within One Year Fair Value HeldToMaturitySecuritiesDebtMaturitiesWithinOneYearFairValue	128000
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities After Five Through Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	937000
CY2019Q3	us-gaap	Held To Maturity Securities Debt Maturities After Ten Years Fair Value HeldToMaturitySecuritiesDebtMaturitiesAfterTenYearsFairValue	4950000
CY2019Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	14000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	72000
CY2019Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	5027000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12Months	8084000
CY2019Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	8
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position Less Than12 Months Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPositionLessThan12MonthsNumberOfPositions	6
CY2019Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	56000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	1935000
CY2019Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	10904000
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLonger	49525000
CY2019Q3	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	11
CY2018Q4	us-gaap	Debt Securities Available For Sale Continuous Unrealized Loss Position12 Months Or Longer Number Of Positions DebtSecuritiesAvailableForSaleContinuousUnrealizedLossPosition12MonthsOrLongerNumberOfPositions	43
CY2019Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	70000
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Accumulated Loss DebtSecuritiesAvailableForSaleUnrealizedLossPositionAccumulatedLoss	2007000
CY2019Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	15931000
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position DebtSecuritiesAvailableForSaleUnrealizedLossPosition	57609000
CY2019Q3	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	19
CY2018Q4	us-gaap	Debt Securities Available For Sale Unrealized Loss Position Number Of Positions DebtSecuritiesAvailableForSaleUnrealizedLossPositionNumberOfPositions	49
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	104000
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	2468000
CY2018Q4	rbb	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Less Than12 Months Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureLessThan12MonthsNumberOfPositions	6
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position12 Months Or Longer Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAccumulatedLoss	60000
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	2174000
CY2018Q4	rbb	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure12 Months Or Longer Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosure12MonthsOrLongerNumberOfPositions	4
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Accumulated Loss HeldToMaturitySecuritiesContinuousUnrealizedLossPositionAccumulatedLoss	164000
CY2018Q4	us-gaap	Held To Maturity Securities Continuous Unrealized Loss Position Fair Value HeldToMaturitySecuritiesContinuousUnrealizedLossPositionFairValue	4642000
CY2018Q4	us-gaap	Held To Maturity Securities In Unrealized Loss Positions Qualitative Disclosure Number Of Positions HeldToMaturitySecuritiesInUnrealizedLossPositionsQualitativeDisclosureNumberOfPositions	10
CY2019Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	18561000
CY2018Q2	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	14657000
CY2019Q3	rbb	Allowance For Loan And Lease Losses Loans Acquired And Sold AllowanceForLoanAndLeaseLossesLoansAcquiredAndSold	824000
CY2018Q3	rbb	Allowance For Loan And Lease Losses Loans Acquired And Sold AllowanceForLoanAndLeaseLossesLoansAcquiredAndSold	1695000
CY2019Q3	rbb	Allowance For Loan And Lease Loss Recovery Of Bad Debt And Charge Offs AllowanceForLoanAndLeaseLossRecoveryOfBadDebtAndChargeOffs	1000
CY2018Q3	rbb	Allowance For Loan And Lease Loss Recovery Of Bad Debt And Charge Offs AllowanceForLoanAndLeaseLossRecoveryOfBadDebtAndChargeOffs	-174000
CY2018Q3	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	16178000
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	13773000
	rbb	Allowance For Loan And Lease Losses Loans Acquired And Sold AllowanceForLoanAndLeaseLossesLoansAcquiredAndSold	2579000
	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	110000
	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	174000
CY2019Q3	us-gaap	Allowance For Credit Losses Change In Method Of Calculating Impairment AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment	19386000
CY2019Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	9628000
CY2019Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	2116517000
CY2018Q3	us-gaap	Allowance For Credit Losses Change In Method Of Calculating Impairment AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment	16178000
CY2018Q3	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	6586000
CY2018Q3	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	1374632000
CY2018Q3	us-gaap	Loans And Leases Receivable Net Of Deferred Income LoansAndLeasesReceivableNetOfDeferredIncome	1381218000
CY2018	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4469000
CY2018	us-gaap	Allowance For Loan And Lease Losses Write Offs AllowanceForLoanAndLeaseLossesWriteOffs	701000
CY2018	us-gaap	Allowance For Loan And Lease Loss Recovery Of Bad Debts AllowanceForLoanAndLeaseLossRecoveryOfBadDebts	36000
CY2018Q4	us-gaap	Allowance For Credit Losses Change In Method Of Calculating Impairment AllowanceForCreditLossesChangeInMethodOfCalculatingImpairment	17577000
CY2018Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	3281000
CY2018Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	2138734000
CY2019Q3	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	2126145000
CY2018Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	2142015000
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	11405000
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	5047000
CY2019Q3	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	2114740000
CY2018Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	914000
CY2019Q3	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	9637000
CY2019Q3	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	9628000
	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	9754000
	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	176000
CY2019Q3	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	430000
CY2018Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	3291000
CY2018Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	3281000
CY2018	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	3979000
CY2018	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	270000
CY2018Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	44000
	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	0
	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	0
CY2018	us-gaap	Impaired Financing Receivable Interest Income Cash Basis Method ImpairedFinancingReceivableInterestIncomeCashBasisMethod	0
CY2019Q3	rbb	Number Of Loans Identified As Troubled Debt Restructurings NumberOfLoansIdentifiedAsTroubledDebtRestructurings	5
CY2018Q4	rbb	Number Of Loans Identified As Troubled Debt Restructurings NumberOfLoansIdentifiedAsTroubledDebtRestructurings	4
CY2019Q3	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	2800000
CY2018Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	2400000
CY2019Q3	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0
CY2018Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	3
	us-gaap	Financing Receivable Modifications Number Of Contracts2 FinancingReceivableModificationsNumberOfContracts2	1
	us-gaap	Financing Receivable Modifications Nature And Extent Of Transaction1 FinancingReceivableModificationsNatureAndExtentOfTransaction1	The modification of the terms generally included loans where a moratorium on loan payments was granted. Such moratoriums ranged from six months to nine months on the loans restructured in 2019 and 2018.
	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	476000
	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	476000
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
	us-gaap	Goodwill Impairment Loss GoodwillImpairmentLoss	0
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Remainder Of Fiscal Year FiniteLivedIntangibleAssetsAmortizationExpenseRemainderOfFiscalYear	343000
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Two FiniteLivedIntangibleAssetsAmortizationExpenseYearTwo	1285000
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Three FiniteLivedIntangibleAssetsAmortizationExpenseYearThree	1056000
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Four FiniteLivedIntangibleAssetsAmortizationExpenseYearFour	879000
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense Year Five FiniteLivedIntangibleAssetsAmortizationExpenseYearFive	749000
CY2019Q3	us-gaap	Finite Lived Intangible Assets Amortization Expense After Year Five FiniteLivedIntangibleAssetsAmortizationExpenseAfterYearFive	2132000
CY2019Q3	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	6444000
CY2019Q3	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	1249837000
CY2019Q3	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	60108000
CY2019Q3	rbb	Time Deposit Maturities Over Three Years TimeDepositMaturitiesOverThreeYears	1872000
CY2019Q3	us-gaap	Time Deposits TimeDeposits	1311817000
CY2019Q3	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	105000000
CY2018Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	105000000
CY2019Q3	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	1036000
CY2018Q4	us-gaap	Unamortized Debt Issuance Expense UnamortizedDebtIssuanceExpense	1292000
CY2019Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	1663000
CY2018Q3	us-gaap	Interest Expense Debt InterestExpenseDebt	812000
	us-gaap	Interest Expense Debt InterestExpenseDebt	4987000
	us-gaap	Interest Expense Debt InterestExpenseDebt	2437000
CY2019Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	85000
CY2018Q3	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	36000
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	256000
	us-gaap	Amortization Of Financing Costs AmortizationOfFinancingCosts	109000
CY2019Q3	rbb	Debt Amortization Expense DebtAmortizationExpense	42000
CY2018Q3	rbb	Debt Amortization Expense DebtAmortizationExpense	23000
	rbb	Debt Amortization Expense DebtAmortizationExpense	125000
	rbb	Debt Amortization Expense DebtAmortizationExpense	68000
CY2019Q3	us-gaap	Line Of Credit LineOfCredit	0
CY2018Q4	us-gaap	Line Of Credit LineOfCredit	0
CY2019Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.315
CY2018Q3	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.197
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.295
	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.182
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	78000
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Exercise Of Stock Options EmployeeServiceShareBasedCompensationTaxBenefitFromExerciseOfStockOptions	3500000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Remainder Of Fiscal Year OperatingLeasesFutureMinimumPaymentsRemainderOfFiscalYear	1462000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	5433000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	4360000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	4106000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	3164000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	10604000
CY2019Q3	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	29129000
CY2019Q3	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1600000
CY2018Q3	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	591000
	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	4600000
	us-gaap	Operating Leases Rent Expense Net OperatingLeasesRentExpenseNet	1500000
CY2019Q3	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	49000
	us-gaap	Rental Income Nonoperating RentalIncomeNonoperating	148000
CY2019Q3	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	247285000
CY2018Q4	us-gaap	Fair Value Disclosure Offbalance Sheet Risks Face Amount Liability FairValueDisclosureOffbalanceSheetRisksFaceAmountLiability	272336000
CY2018Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	3600000
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	2300000
	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	12180000
CY2018	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	7400000
	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	11780000
CY2018	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	6100000
CY2019Q3	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	4000000
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	543000
	us-gaap	Allocated Share Based Compensation Expense AllocatedShareBasedCompensationExpense	446000
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	38000
	us-gaap	Employee Service Share Based Compensation Tax Benefit From Compensation Expense EmployeeServiceShareBasedCompensationTaxBenefitFromCompensationExpense	88000
CY2015Q1	rbb	Tier One Risk Based Common Equity Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCommonEquityCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.045
CY2015Q1	rbb	Tier One Risk Based Common Equity Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCommonEquityCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.065
CY2015Q1	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.040
CY2015Q1	rbb	Increased Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets IncreasedTierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.060
CY2015Q1	us-gaap	Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets TierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.060
CY2015Q1	rbb	Increased Tier One Risk Based Capital Required To Be Well Capitalized To Risk Weighted Assets IncreasedTierOneRiskBasedCapitalRequiredToBeWellCapitalizedToRiskWeightedAssets	0.080
CY2015Q1	rbb	Capital Conservation Buffer CapitalConservationBuffer	0.025
CY2016Q1	rbb	Capital Conservation Buffer CapitalConservationBuffer	0.00625
CY2016Q1	rbb	Capital Conservation Buffer Phased In On Pro Rata Basis Period CapitalConservationBufferPhasedInOnProRataBasisPeriod	P4Y
CY2017Q1	rbb	Capital Conservation Buffer CapitalConservationBuffer	0.025
CY2018Q1	rbb	Capital Conservation Buffer CapitalConservationBuffer	0.025
CY2019Q1	rbb	Capital Conservation Buffer CapitalConservationBuffer	0.025
	rbb	Write Down On Other Real Estate Owned WriteDownOnOtherRealEstateOwned	0
CY2018	rbb	Write Down On Other Real Estate Owned WriteDownOnOtherRealEstateOwned	0
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	8012000
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	8331000
CY2019Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	8012000
CY2018Q3	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	8331000
CY2019Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	20030866
CY2018Q3	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	16795903
CY2019Q3	rbb	Weighted Average Number Of Shares Impact WeightedAverageNumberOfSharesImpact	36981
CY2018Q3	rbb	Weighted Average Number Of Shares Impact WeightedAverageNumberOfSharesImpact	-154737
CY2019Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20067847
CY2018Q3	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16641166
CY2019Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	358119
CY2018Q3	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	784134
CY2019Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20425966
CY2018Q3	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17425300
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	28534000
	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	26614000
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	28534000
	us-gaap	Net Income Loss Available To Common Stockholders Diluted NetIncomeLossAvailableToCommonStockholdersDiluted	26614000
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	20030866
	us-gaap	Weighted Average Number Of Shares Issued Basic WeightedAverageNumberOfSharesIssuedBasic	16795903
	rbb	Weighted Average Number Of Shares Impact WeightedAverageNumberOfSharesImpact	32613
	rbb	Weighted Average Number Of Shares Impact WeightedAverageNumberOfSharesImpact	-416692
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	20063479
	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16379211
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	372388
	us-gaap	Incremental Common Shares Attributable To Share Based Payment Arrangements IncrementalCommonSharesAttributableToShareBasedPaymentArrangements	930030
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	20435867
	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	17309241
CY2019Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	894000
CY2018Q3	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	617000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	2869000
	us-gaap	Revenue From Contract With Customer Excluding Assessed Tax RevenueFromContractWithCustomerExcludingAssessedTax	1451000
CY2019Q3	rbb	Revenue Not From Contract With Customer Excluding Assessed Tax RevenueNotFromContractWithCustomerExcludingAssessedTax	1905000
CY2018Q3	rbb	Revenue Not From Contract With Customer Excluding Assessed Tax RevenueNotFromContractWithCustomerExcludingAssessedTax	1488000
	rbb	Revenue Not From Contract With Customer Excluding Assessed Tax RevenueNotFromContractWithCustomerExcludingAssessedTax	9628000
	rbb	Revenue Not From Contract With Customer Excluding Assessed Tax RevenueNotFromContractWithCustomerExcludingAssessedTax	5901000
CY2019Q3	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	8900000
CY2018Q4	us-gaap	Amortization Method Qualified Affordable Housing Project Investments AmortizationMethodQualifiedAffordableHousingProjectInvestments	9500000
CY2019Q3	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	5000000
CY2018Q4	us-gaap	Qualified Affordable Housing Project Investments Commitment QualifiedAffordableHousingProjectInvestmentsCommitment	6800000
	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	675000
	us-gaap	Amortization Method Qualified Affordable Housing Project Investments Amortization AmortizationMethodQualifiedAffordableHousingProjectInvestmentsAmortization	483000

Files In Submission

Name	View Source	Status
0001564590-19-042917-index-headers.html	Edgar Link	pending
0001564590-19-042917-index.html	Edgar Link	pending
0001564590-19-042917.txt	Edgar Link	pending
0001564590-19-042917-xbrl.zip	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
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rbb-10q_20190930.htm	Edgar Link	pending
rbb-20190930.xml	Edgar Link	completed
rbb-20190930.xsd	Edgar Link	pending
rbb-20190930_cal.xml	Edgar Link	unprocessable
rbb-20190930_def.xml	Edgar Link	unprocessable
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rbb-ex21_315.htm	Edgar Link	pending
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rbb-ex321_7.htm	Edgar Link	pending
rbb-ex322_8.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending

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2019 Q4 Form 10-Q Financial Statement

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$RBB RBB Bancorp Stock $rbb

2019 Q4 Form 10-Q Financial Statement

#000156459019042917 Filed on November 12, 2019

Income Statement

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Facts In Submission

Files In Submission

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RBB Bancorp Stock $rbb