$UBFO
UNITED SECURITY BANCSHARES Stock $ubfo

$ubfo Overview Financials Valuation SEC Filings Company Website

2016 Q4 Form 10-K Financial Statement

#000113754718000005 Filed on March 02, 2018

Income Statement

Concept	2016 Q4	2016 Q3	2016 Q2
Revenue	$7.779M	$7.753M	$6.996M
YoY Change		11.41%	2.31%
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	$340.0K	$360.0K	$370.0K
YoY Change	-5.56%	-5.26%	2.78%
% of Gross Profit
Operating Expenses
YoY Change
Operating Profit
YoY Change
Interest Expense	$395.0K	$349.0K	$330.0K
YoY Change		7.06%	5.77%
% of Operating Profit
Other Income/Expense, Net
YoY Change
Pretax Income	$2.781M	$3.322M	$3.257M
YoY Change	-2.42%	7.47%	-3.98%
Income Tax	$1.226M	$1.282M	$1.236M
% Of Pretax Income	44.08%	38.59%	37.95%
Net Earnings	$1.555M	$2.040M	$2.021M
YoY Change	-4.78%	8.17%	-2.04%
Net Earnings / Revenue	19.99%	26.31%	28.89%
Basic Earnings Per Share	$0.09	$0.12	$0.12
Diluted Earnings Per Share	$0.09	$0.12	$0.12
COMMON SHARES
Basic Shares Outstanding	16.54M shares	16.88M shares	16.87M shares
Diluted Shares Outstanding		16.89M shares	16.88M shares

Balance Sheet

Concept	2016 Q4	2016 Q3	2016 Q2
SHORT-TERM ASSETS
Cash & Short-Term Investments
YoY Change
Cash & Equivalents	$113.0M	$111.7M	$94.56M
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	$10.45M	$10.23M	$10.41M
YoY Change	-3.29%	-6.57%	-6.96%
Goodwill	$4.488M	$4.488M	$4.488M
YoY Change	0.0%	0.0%	0.0%
Intangibles
YoY Change
Long-Term Investments	$800.0K	$800.0K	$900.0K
YoY Change	-11.11%	-11.11%	0.0%
Other Assets	$3.300M	$5.100M	$4.900M
YoY Change	-36.54%	-23.88%	-28.99%
Total Long-Term Assets
YoY Change
TOTAL ASSETS
Total Short-Term Assets
Total Long-Term Assets
Total Assets	$788.0M	$781.6M	$744.1M
YoY Change	8.59%	8.8%	9.05%
SHORT-TERM LIABILITIES
YoY Change
Accounts Payable	$5.900M	$6.500M	$5.600M
YoY Change	0.0%	10.17%	-12.5%
Accrued Expenses
YoY Change
Deferred Revenue
YoY Change
Short-Term Debt
YoY Change
Long-Term Debt Due
YoY Change
Total Short-Term Liabilities	$5.900M	$6.500M	$5.600M
YoY Change	0.0%	10.17%	-12.5%
LONG-TERM LIABILITIES
Long-Term Debt	$8.800M	$8.300M	$7.800M
YoY Change	6.02%	5.06%	-21.21%
Other Long-Term Liabilities
YoY Change
Total Long-Term Liabilities	$8.800M	$8.300M	$7.800M
YoY Change	6.02%	5.06%	-21.21%
TOTAL LIABILITIES
Total Short-Term Liabilities	$5.900M	$6.500M	$5.600M
Total Long-Term Liabilities	$8.800M	$8.300M	$7.800M
Total Liabilities	$691.3M	$686.0M	$650.4M
YoY Change	8.7%	8.82%	9.08%
SHAREHOLDERS EQUITY
Retained Earnings	$40.70M	$40.39M	$39.38M
YoY Change	9.22%	10.74%	11.27%
Common Stock	$56.56M	$55.31M	$54.26M
YoY Change	7.58%	6.92%	6.57%
Preferred Stock
YoY Change
Treasury Stock (at cost)
YoY Change
Treasury Stock Shares
Shareholders Equity	$96.65M	$95.59M	$93.64M
YoY Change
Total Liabilities & Shareholders Equity	$788.0M	$781.6M	$744.1M
YoY Change	8.59%	8.8%	9.05%

Cashflow Statement

Concept	2016 Q4	2016 Q3	2016 Q2
OPERATING ACTIVITIES
Net Income	$1.555M	$2.040M	$2.021M
YoY Change	-4.78%	8.17%	-2.04%
Depreciation, Depletion And Amortization	$340.0K	$360.0K	$370.0K
YoY Change	-5.56%	-5.26%	2.78%
Cash From Operating Activities	$3.430M	$3.020M	$3.250M
YoY Change	36.11%	70.62%	11.68%
INVESTING ACTIVITIES
Capital Expenditures	-$550.0K	-$170.0K	-$120.0K
YoY Change	139.13%	21.43%	-45.45%
Acquisitions
YoY Change
Other Investing Activities	-$6.930M	-$20.00M	-$33.68M
YoY Change	-464.74%	777.19%	337.4%
Cash From Investing Activities	-$7.490M	-$20.18M	-$33.79M
YoY Change	-548.5%	737.34%	326.64%
FINANCING ACTIVITIES
Cash Dividend Paid
YoY Change
Common Stock Issuance & Retirement, Net
YoY Change
Debt Paid & Issued, Net
YoY Change
Cash From Financing Activities	5.340M	34.35M	-380.0K
YoY Change	3.29%	-1.49%	-122.49%
NET CHANGE
Cash From Operating Activities	3.430M	3.020M	3.250M
Cash From Investing Activities	-7.490M	-20.18M	-33.79M
Cash From Financing Activities	5.340M	34.35M	-380.0K
Net Change In Cash	1.280M	17.19M	-30.92M
YoY Change	-86.32%	-49.78%	831.33%
FREE CASH FLOW
Cash From Operating Activities	$3.430M	$3.020M	$3.250M
Capital Expenditures	-$550.0K	-$170.0K	-$120.0K
Free Cash Flow	$3.980M	$3.190M	$3.370M
YoY Change	44.73%	67.02%	7.67%

Facts In Submission

Frame	Concept Type	Concept / XBRL Key	Value	Unit
CY2016	ubfo	Amortizationof Investment Securities AmortizationofInvestmentSecurities	481000	USD
CY2017	ubfo	Amortizationof Investment Securities AmortizationofInvestmentSecurities	534000	USD
CY2017	dei	Amendment Flag AmendmentFlag	false
CY2017	dei	Current Fiscal Year End Date CurrentFiscalYearEndDate	--12-31
CY2017	dei	Document Fiscal Period Focus DocumentFiscalPeriodFocus	FY
CY2017	dei	Document Fiscal Year Focus DocumentFiscalYearFocus	2017
CY2017	dei	Document Period End Date DocumentPeriodEndDate	2017-12-31
CY2017	dei	Document Type DocumentType	10-K
CY2017	dei	Entity Central Index Key EntityCentralIndexKey	0001137547
CY2018Q1	dei	Entity Common Stock Shares Outstanding EntityCommonStockSharesOutstanding	16885615	shares
CY2017	dei	Entity Current Reporting Status EntityCurrentReportingStatus	Yes
CY2017	dei	Entity Filer Category EntityFilerCategory	Accelerated Filer
CY2017Q2	dei	Entity Public Float EntityPublicFloat	119569297	USD
CY2017	dei	Entity Registrant Name EntityRegistrantName	UNITED SECURITY BANCSHARES
CY2017	dei	Entity Voluntary Filers EntityVoluntaryFilers	No
CY2017	dei	Entity Well Known Seasoned Issuer EntityWellKnownSeasonedIssuer	No
CY2015	ubfo	Amortizationof Investment Securities AmortizationofInvestmentSecurities	266000	USD
CY2016Q4	ubfo	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses Accumulated In Investments Balance AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInInvestmentsBalance	284000	USD
CY2017Q4	ubfo	Available For Sale Securities Continuous Unrealized Loss Position12 Months Or Longer Aggregate Losses Accumulated In Investments Balance AvailableForSaleSecuritiesContinuousUnrealizedLossPosition12MonthsOrLongerAggregateLossesAccumulatedInInvestmentsBalance	563000	USD
CY2016Q4	ubfo	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated In Investments Balance AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInInvestmentsBalance	755000	USD
CY2017Q4	ubfo	Available For Sale Securities Continuous Unrealized Loss Position Aggregate Losses Accumulated In Investments Balance AvailableForSaleSecuritiesContinuousUnrealizedLossPositionAggregateLossesAccumulatedInInvestmentsBalance	720000	USD
CY2016Q4	ubfo	Cash Surrender Valueof Bank Owned Life Insurance Policies CashSurrenderValueofBankOwnedLifeInsurancePolicies	12595000	USD
CY2017Q4	ubfo	Cash Surrender Valueof Bank Owned Life Insurance Policies CashSurrenderValueofBankOwnedLifeInsurancePolicies	12935000	USD
CY2017Q4	ubfo	Contractual Maturities Time Deposits250000or More Three Months Through One Year ContractualMaturitiesTimeDeposits250000orMoreThreeMonthsThroughOneYear	485000	USD
CY2017Q4	ubfo	Contractual Maturities Time Deposits250000or More Three Monthsor Less ContractualMaturitiesTimeDeposits250000orMoreThreeMonthsorLess	6535000	USD
CY2016Q4	ubfo	Deferred Tax Asset Intereston Non Accrual Loans DeferredTaxAssetInterestonNonAccrualLoans	36000	USD
CY2017Q4	ubfo	Deferred Tax Asset Intereston Non Accrual Loans DeferredTaxAssetInterestonNonAccrualLoans	29000	USD
CY2016Q4	ubfo	Deferred Tax Assets Unrealized Gainon Retirement Obligation DeferredTaxAssetsUnrealizedGainonRetirementObligation	0	USD
CY2017Q4	ubfo	Deferred Tax Assets Unrealized Gainon Retirement Obligation DeferredTaxAssetsUnrealizedGainonRetirementObligation	-104000	USD
CY2016Q4	ubfo	Deferred Tax Assets Unrealized Gainson Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedGainsonAvailableforSaleSecuritiesGross	-415000	USD
CY2017Q4	ubfo	Deferred Tax Assets Unrealized Gainson Availablefor Sale Securities Gross DeferredTaxAssetsUnrealizedGainsonAvailableforSaleSecuritiesGross	-196000	USD
CY2016Q4	ubfo	Deferred Tax Assets Write Down On Other Real Estate Owned DeferredTaxAssetsWriteDownOnOtherRealEstateOwned	534000	USD
CY2017Q4	ubfo	Deferred Tax Assets Write Down On Other Real Estate Owned DeferredTaxAssetsWriteDownOnOtherRealEstateOwned	35000	USD
CY2017Q4	ubfo	Due From Frb Interest Bearing Cash DueFromFrbInterestBearingCash	72697000	USD
CY2016	ubfo	Gain Loss On Fair Value Of Financial Instruments Net Pretax GainLossOnFairValueOfFinancialInstrumentsNetPretax	-518000	USD
CY2017	ubfo	Gain Loss On Fair Value Of Financial Instruments Net Pretax GainLossOnFairValueOfFinancialInstrumentsNetPretax	-882000	USD
CY2016Q4	ubfo	Interest Bearing Deposit Brokered InterestBearingDepositBrokered	28132000	USD
CY2017Q4	ubfo	Interest Bearing Deposit Brokered InterestBearingDepositBrokered	7421000	USD
CY2016Q4	ubfo	Number Of Restructured Loans NumberOfRestructuredLoans	28	loan
CY2017Q4	ubfo	Number Of Restructured Loans NumberOfRestructuredLoans	25	loan
CY2016	ubfo	Principal Paymentsof Availablefor Sale Securities PrincipalPaymentsofAvailableforSaleSecurities	4687000	USD
CY2017	ubfo	Principal Paymentsof Availablefor Sale Securities PrincipalPaymentsofAvailableforSaleSecurities	11260000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsFairValue	699000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsAmortizedCost	0	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsAmortizedCost	18995000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Ten Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterTenYearsFairValue	19255000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearAmortizedCost	4000000	USD
CY2016Q4	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	5781000	USD
CY2017	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	8000	USD
CY2016Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-604000	USD
CY2017Q4	us-gaap	Accumulated Other Comprehensive Income Loss Net Of Tax AccumulatedOtherComprehensiveIncomeLossNetOfTax	-710000	USD
CY2016	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	21000	shares
CY2017	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	98000	shares
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After Five Through Ten Years Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesAfterFiveThroughTenYearsAmortizedCost	688000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Within One Year Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithinOneYearFairValue	3737000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Amortized Cost AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateAmortizedCost	22391000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities Without Single Maturity Date Fair Value AvailableForSaleSecuritiesDebtMaturitiesWithoutSingleMaturityDateFairValue	22031000	USD
CY2017Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	34542543	USD
CY2016Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	19047000	USD
CY2017Q4	us-gaap	Bank Owned Life Insurance BankOwnedLifeInsurance	19752000	USD
CY2016	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	530000	USD
CY2017	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	534000	USD
CY2016Q4	us-gaap	Common Stock Value CommonStockValue	56557000	USD
CY2017Q4	us-gaap	Common Stock Value CommonStockValue	57880000	USD
CY2016	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	2199000	USD
CY2017	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	906000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	3298000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Net DeferredTaxAssetsNet	2389000	USD
CY2016Q4	us-gaap	Deposits Money Market Deposits And Negotiable Order Of Withdrawal Now DepositsMoneyMarketDepositsAndNegotiableOrderOfWithdrawalNOW	235873000	USD
CY2017Q4	us-gaap	Deposits Money Market Deposits And Negotiable Order Of Withdrawal Now DepositsMoneyMarketDepositsAndNegotiableOrderOfWithdrawalNOW	234154000	USD
CY2016Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	75068000	USD
CY2017Q4	us-gaap	Deposits Savings Deposits DepositsSavingsDeposits	81408000	USD
CY2016	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1428000	USD
CY2017	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1335000	USD
CY2017	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.51
CY2016	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.44
CY2017	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.51
CY2016Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	8832000	USD
CY2017Q4	us-gaap	Fair Value Liabilities Measured On Recurring Basis Subordinated Debt Obligations FairValueLiabilitiesMeasuredOnRecurringBasisSubordinatedDebtObligations	9730000	USD
CY2016	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	767000	USD
CY2016	us-gaap	Fees And Commissions FeesAndCommissions	3792000	USD
CY2017	us-gaap	Fees And Commissions FeesAndCommissions	3851000	USD
CY2017	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	150000	USD
CY2016Q4	us-gaap	Goodwill Goodwill	4488000	USD
CY2017Q4	us-gaap	Goodwill Goodwill	4488000	USD
CY2016	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	35000	USD
CY2016	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-158000	USD
CY2017	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-109000	USD
CY2016	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4869000	USD
CY2017	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	7039000	USD
CY2016	us-gaap	Income Taxes Paid IncomeTaxesPaid	1710000	USD
CY2017	us-gaap	Income Taxes Paid IncomeTaxesPaid	6863000	USD
CY2016	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-146000	USD
CY2017	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	-39000	USD
CY2016	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	1676000	USD
CY2017	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	2631000	USD
CY2016	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	47000	USD
CY2017	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-32000	USD
CY2016	us-gaap	Increase Decrease In Other Deposits IncreaseDecreaseInOtherDeposits	20993000	USD
CY2017	us-gaap	Increase Decrease In Other Deposits IncreaseDecreaseInOtherDeposits	49226000	USD
CY2016	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	290000	USD
CY2016	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	33831000	USD
CY2017	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-38159000	USD
CY2016	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-1017000	USD
CY2017	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	36000	USD
CY2016	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	148000	USD
CY2017	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	119000	USD
CY2016	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	28182000	USD
CY2017	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	30817000	USD
CY2016Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	413932000	USD
CY2017Q4	us-gaap	Interest Bearing Deposit Liabilities InterestBearingDepositLiabilities	380394000	USD
CY2016	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1167000	USD
CY2017	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1426000	USD
CY2016	us-gaap	Interest Expense Loans From Other Federal Home Loan Banks InterestExpenseLoansFromOtherFederalHomeLoanBanks	242000	USD
CY2017	us-gaap	Interest Expense Loans From Other Federal Home Loan Banks InterestExpenseLoansFromOtherFederalHomeLoanBanks	304000	USD
CY2017	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	1207000	USD
CY2016	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	825000	USD
CY2017	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	901000	USD
CY2016	us-gaap	Interest Paid InterestPaid	1362000	USD
CY2017Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	44000	USD
CY2016Q4	us-gaap	Interest Receivable InterestReceivable	3895000	USD
CY2017Q4	us-gaap	Interest Receivable InterestReceivable	6526000	USD
CY2016Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	757000	USD
CY2017Q4	us-gaap	Investments In Affiliates Subsidiaries Associates And Joint Ventures InvestmentsInAffiliatesSubsidiariesAssociatesAndJointVentures	1601000	USD
CY2017	us-gaap	Labor And Related Expense LaborAndRelatedExpense	10821000	USD
CY2016	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	530000	USD
CY2017	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	534000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	8902000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Allowance LoansAndLeasesReceivableAllowance	9267000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	569759000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	601351000	USD
CY2016	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	7385000	USD
CY2017	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	8640000	USD
CY2016	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	284000	USD
CY2017	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	289000	USD
CY2016	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	710000	USD
CY2017	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	727000	USD
CY2016	us-gaap	Occupancy Net OccupancyNet	4222000	USD
CY2016Q4	ubfo	Deferred Tax Liabilities Fair Value Adjustments For Purchase Accounting DeferredTaxLiabilitiesFairValueAdjustmentsForPurchaseAccounting	139000	USD
CY2016Q4	ubfo	Financing Receivable Modification Allowance For Loan Losses FinancingReceivableModificationAllowanceForLoanLosses	714000	USD
CY2017Q4	ubfo	Financing Receivable Modification Allowance For Loan Losses FinancingReceivableModificationAllowanceForLoanLosses	1369000	USD
CY2015	ubfo	Financing Receivable Modifications Additions FinancingReceivableModificationsAdditions	6770000	USD
CY2017Q4	ubfo	Deferred Tax Liabilities Fair Value Adjustments For Purchase Accounting DeferredTaxLiabilitiesFairValueAdjustmentsForPurchaseAccounting	99000	USD
CY2016Q4	ubfo	Deferred Tax Liabilities Federal Home Loan Bank Dividend DeferredTaxLiabilitiesFederalHomeLoanBankDividend	65000	USD
CY2017Q4	ubfo	Deferred Tax Liabilities Federal Home Loan Bank Dividend DeferredTaxLiabilitiesFederalHomeLoanBankDividend	46000	USD
CY2016Q4	ubfo	Deferred Tax Liabilities Reserve Charge Off DeferredTaxLiabilitiesReserveChargeOff	0	USD
CY2017Q4	ubfo	Deferred Tax Liabilities Reserve Charge Off DeferredTaxLiabilitiesReserveChargeOff	43000	USD
CY2016Q4	ubfo	Deferred Tax Liabilities State Tax DeferredTaxLiabilitiesStateTax	1087000	USD
CY2017Q4	ubfo	Deferred Tax Liabilities State Tax DeferredTaxLiabilitiesStateTax	152000	USD
CY2017	ubfo	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Term DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationTerm	P20Y
CY2016Q4	ubfo	Deposit Overdrafts DepositOverdrafts	283000	USD
CY2017Q4	ubfo	Deposit Overdrafts DepositOverdrafts	293000	USD
CY2016Q4	ubfo	Deposits Of Related Parties DepositsOfRelatedParties	9299000	USD
CY2017Q4	ubfo	Deposits Of Related Parties DepositsOfRelatedParties	8747000	USD
CY2016Q4	ubfo	Due From Frb Interest Bearing Cash DueFromFrbInterestBearingCash	87251000	USD
CY2015Q4	ubfo	Financing Receivable Modification Allowance For Loan Losses FinancingReceivableModificationAllowanceForLoanLosses	1692000	USD
CY2016	ubfo	Financing Receivable Modifications Additions FinancingReceivableModificationsAdditions	2825000	USD
CY2017	ubfo	Financing Receivable Modifications Additions FinancingReceivableModificationsAdditions	3553000	USD
CY2015	ubfo	Financing Receivable Modifications Defaults FinancingReceivableModificationsDefaults	0	USD
CY2016	ubfo	Financing Receivable Modifications Defaults FinancingReceivableModificationsDefaults	290000	USD
CY2017	ubfo	Financing Receivable Modifications Defaults FinancingReceivableModificationsDefaults	288000	USD
CY2015	ubfo	Financing Receivable Modifications Numberof Contracts During Period2 FinancingReceivableModificationsNumberofContractsDuringPeriod2	3	contract
CY2016	ubfo	Financing Receivable Modifications Numberof Contracts During Period2 FinancingReceivableModificationsNumberofContractsDuringPeriod2	7	contract
CY2017	ubfo	Financing Receivable Modifications Numberof Contracts During Period2 FinancingReceivableModificationsNumberofContractsDuringPeriod2	8	contract
CY2017	ubfo	Financing Receivable Periodof Successful Payment History Usedfor Restructured Loan Accrual Status FinancingReceivablePeriodofSuccessfulPaymentHistoryUsedforRestructuredLoanAccrualStatus	P6M
CY2016	ubfo	Financing Receivable Remaining Undisbursed Commitments Loan Funds FinancingReceivableRemainingUndisbursedCommitmentsLoanFunds	0	USD
CY2017	ubfo	Financing Receivable Remaining Undisbursed Commitments Loan Funds FinancingReceivableRemainingUndisbursedCommitmentsLoanFunds	0	USD
CY2015	ubfo	Financing Receivables Impaired Troubled Debt Restructuring Credit Losses Write Offs FinancingReceivablesImpairedTroubledDebtRestructuringCreditLossesWriteOffs	36000	USD
CY2016	ubfo	Financing Receivables Impaired Troubled Debt Restructuring Credit Losses Write Offs FinancingReceivablesImpairedTroubledDebtRestructuringCreditLossesWriteOffs	852000	USD
CY2017	ubfo	Financing Receivables Impaired Troubled Debt Restructuring Credit Losses Write Offs FinancingReceivablesImpairedTroubledDebtRestructuringCreditLossesWriteOffs	37000	USD
CY2015	ubfo	Gain Loss On Fair Value Of Financial Instruments Net Pretax GainLossOnFairValueOfFinancialInstrumentsNetPretax	-73000	USD
CY2015	ubfo	Gain Losson Fair Value Optionof Financial Liability GainLossonFairValueOptionofFinancialLiability	-73000	USD
CY2016	ubfo	Gain Losson Fair Value Optionof Financial Liability GainLossonFairValueOptionofFinancialLiability	-518000	USD
CY2017	ubfo	Gain Losson Fair Value Optionof Financial Liability GainLossonFairValueOptionofFinancialLiability	-882000	USD
CY2015	ubfo	Income Losson Bank Owned Life Insurance Policies IncomeLossonBankOwnedLifeInsurancePolicies	399000	USD
CY2016	ubfo	Income Losson Bank Owned Life Insurance Policies IncomeLossonBankOwnedLifeInsurancePolicies	465000	USD
CY2017	ubfo	Income Losson Bank Owned Life Insurance Policies IncomeLossonBankOwnedLifeInsurancePolicies	485000	USD
CY2016Q4	ubfo	Loans Receivable Receivables Commercial And Industrial Fair Value Disclosure LoansReceivableReceivablesCommercialAndIndustrialFairValueDisclosure	301000	USD
CY2017Q4	ubfo	Loans Receivable Receivables Commercial And Industrial Fair Value Disclosure LoansReceivableReceivablesCommercialAndIndustrialFairValueDisclosure	0	USD
CY2016Q4	ubfo	Loans Receivables Total Impaired Loans Fair Value Disclosure LoansReceivablesTotalImpairedLoansFairValueDisclosure	301000	USD
CY2017Q4	ubfo	Loans Receivables Total Impaired Loans Fair Value Disclosure LoansReceivablesTotalImpairedLoansFairValueDisclosure	0	USD
CY2015	ubfo	Loans Transferred To Foreclosed Assets LoansTransferredToForeclosedAssets	226000	USD
CY2016	ubfo	Loans Transferred To Foreclosed Assets LoansTransferredToForeclosedAssets	0	USD
CY2017	ubfo	Loans Transferred To Foreclosed Assets LoansTransferredToForeclosedAssets	0	USD
CY2017	ubfo	Maximum Number Of Consecutive Quarters Entity Defer Interest Payments Without Default Or Penalty MaximumNumberOfConsecutiveQuartersEntityDeferInterestPaymentsWithoutDefaultOrPenalty	20	quarter
CY2016Q4	us-gaap	Other Assets OtherAssets	6466000	USD
CY2016	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1073000	USD
CY2017	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	1128000	USD
CY2016	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	878000	USD
CY2017	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	650000	USD
CY2016	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-9000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-22000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	-6000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-648000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	16000	USD
CY2016	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-259000	USD
CY2017	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	6000	USD
CY2016	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	8000	USD
CY2017	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	5000	USD
CY2016	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2382000	USD
CY2017	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2537000	USD
CY2016Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	6471000	USD
CY2017Q4	us-gaap	Other Real Estate And Foreclosed Assets OtherRealEstateAndForeclosedAssets	5745000	USD
CY2016	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	101000	USD
CY2017	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	495000	USD
CY2016	us-gaap	Payments For Proceeds From Limited Partnership PaymentsForProceedsFromLimitedPartnership	-1000	USD
CY2017	us-gaap	Payments For Proceeds From Limited Partnership PaymentsForProceedsFromLimitedPartnership	954000	USD
CY2016	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	51465000	USD
CY2017	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	31251000	USD
CY2016	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	6000	USD
CY2017	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	6000	USD
CY2016	us-gaap	Professional Fees ProfessionalFees	1493000	USD
CY2007Q3	ubfo	Maximum Qualified Percentage MaximumQualifiedPercentage	0.25
CY2017Q4	ubfo	Minimum Tier One Capital To Total Assets MinimumTierOneCapitalToTotalAssets	0.03
CY2017	ubfo	Minimumtermofguarantees Minimumtermofguarantees	P1M
CY2015Q1	ubfo	Percentage Of Stock Dividend Declared On Common Stocks Outstanding PercentageOfStockDividendDeclaredOnCommonStocksOutstanding	0.01
CY2016Q2	ubfo	Percentage Of Stock Dividend Declared On Common Stocks Outstanding PercentageOfStockDividendDeclaredOnCommonStocksOutstanding	0.01
CY2017Q4	ubfo	Number Of Branches NumberOfBranches	11	branch
CY2017Q4	ubfo	Number Of Construction Lending Offices NumberOfConstructionLendingOffices	1	office
CY2017Q4	ubfo	Number Of Financial Services Departments NumberOfFinancialServicesDepartments	1	department
CY2017	ubfo	Number Of General Segments For The Segregation Of Portfolio NumberOfGeneralSegmentsForTheSegregationOfPortfolio	2	segment
CY2017	ubfo	Number Of Monthly Payments To Demonstrate Repayment Ability NumberOfMonthlyPaymentsToDemonstrateRepaymentAbility	6	payment
CY2017	ubfo	Number Of Risk Rating Approaches NumberOfRiskRatingApproaches	2	rating
CY2017	ubfo	Numberof Loan Portfolio Segment NumberofLoanPortfolioSegment	11	segment
CY2016Q3	ubfo	Percentage Of Stock Dividend Declared On Common Stocks Outstanding PercentageOfStockDividendDeclaredOnCommonStocksOutstanding	0.01
CY2016Q4	ubfo	Percentage Of Stock Dividend Declared On Common Stocks Outstanding PercentageOfStockDividendDeclaredOnCommonStocksOutstanding	0.01
CY2017	ubfo	Maximum Term Of Guarantees MaximumTermOfGuarantees	P3Y
CY2017	ubfo	Numberof Loans Entity Experienced Losses NumberofLoansEntityExperiencedLosses	6	loan
CY2005Q2	ubfo	Options Exercisable OptionsExercisable	0.2
CY2005Q2	ubfo	Options Expiration Period OptionsExpirationPeriod	P10Y
CY2017Q1	ubfo	Percentage Of Stock Dividend Declared On Common Stocks Outstanding PercentageOfStockDividendDeclaredOnCommonStocksOutstanding	0.01
CY2017Q2	ubfo	Percentage Of Stock Dividend Declared On Common Stocks Outstanding PercentageOfStockDividendDeclaredOnCommonStocksOutstanding	0.01
CY2017Q3	ubfo	Percentage Of Stock Dividend Declared On Common Stocks Outstanding PercentageOfStockDividendDeclaredOnCommonStocksOutstanding	0.01
CY2017Q4	ubfo	Percentage Of Stock Dividend Declared On Common Stocks Outstanding PercentageOfStockDividendDeclaredOnCommonStocksOutstanding	0.01
CY2017	ubfo	Period Of Default Minimum PeriodOfDefaultMinimum	P90D
CY2017	ubfo	Periodof Estimated Intangible Amortization Expense PeriodofEstimatedIntangibleAmortizationExpense	P5Y
CY2015	ubfo	Principal Paymentsof Availablefor Sale Securities PrincipalPaymentsofAvailableforSaleSecurities	5922000	USD
CY2015	ubfo	Real Estate Owned Financed RealEstateOwnedFinanced	0	USD
CY2016	ubfo	Real Estate Owned Financed RealEstateOwnedFinanced	3766000	USD
CY2017	ubfo	Real Estate Owned Financed RealEstateOwnedFinanced	0	USD
CY2015	ubfo	Rental Adjustments RentalAdjustments	16000	USD
CY2016	ubfo	Rental Adjustments RentalAdjustments	8000	USD
CY2017	ubfo	Rental Adjustments RentalAdjustments	1000	USD
CY2015	ubfo	Repaymentsof Senior Liensof Other Real Estate RepaymentsofSeniorLiensofOtherRealEstate	0	USD
CY2016	ubfo	Repaymentsof Senior Liensof Other Real Estate RepaymentsofSeniorLiensofOtherRealEstate	705000	USD
CY2017	ubfo	Repaymentsof Senior Liensof Other Real Estate RepaymentsofSeniorLiensofOtherRealEstate	0	USD
CY2007Q2	ubfo	Repurchase Plan Percentage Of Common Stock Outstanding RepurchasePlanPercentageOfCommonStockOutstanding	0.0500
CY2016Q4	ubfo	Salary Continuation Plan Accrued Liability SalaryContinuationPlanAccruedLiability	3975000	USD
CY2017Q4	ubfo	Salary Continuation Plan Accrued Liability SalaryContinuationPlanAccruedLiability	4084000	USD
CY2017	ubfo	Sharebased Compensation Arrangementby Sharebased Payment Award Numberof Plans SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofPlans	2	plan
CY2017	ubfo	Tax Cuts And Jobs Act Of2017 Incomplete Accounting Transition Tax For Accumulated Foreign Earnings Provisional Income Tax Expense TaxCutsAndJobsActOf2017IncompleteAccountingTransitionTaxForAccumulatedForeignEarningsProvisionalIncomeTaxExpense	986000	USD
CY2015Q4	ubfo	Tier One Common Capital Requiredfor Capital Adequacy TierOneCommonCapitalRequiredforCapitalAdequacy	27201000	USD
CY2016Q4	ubfo	Tier One Common Capital Requiredfor Capital Adequacy TierOneCommonCapitalRequiredforCapitalAdequacy	30630000	USD
CY2017Q4	ubfo	Tier One Common Capital Requiredfor Capital Adequacy TierOneCommonCapitalRequiredforCapitalAdequacy	29565000	USD
CY2015Q4	ubfo	Tier One Common Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.045
CY2016Q4	ubfo	Tier One Common Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.045
CY2017Q4	ubfo	Tier One Common Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.045
CY2017Q4	ubfo	Tier One Common Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierOneCommonCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.0450
CY2015Q4	ubfo	Tier One Common Capitalto Risk Weighted Assets TierOneCommonCapitaltoRiskWeightedAssets	0.1410
CY2017	us-gaap	Professional Fees ProfessionalFees	1433000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	10445000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Net PropertyPlantAndEquipmentNet	10165000	USD
CY2016	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-21000	USD
CY2017	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	24000	USD
CY2016Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	40701000	USD
CY2017Q4	us-gaap	Retained Earnings Accumulated Deficit RetainedEarningsAccumulatedDeficit	44182000	USD
CY2016	us-gaap	Share Based Compensation ShareBasedCompensation	30000	USD
CY2017	us-gaap	Share Based Compensation ShareBasedCompensation	97000	USD
CY2016Q4	us-gaap	Subordinated Debt SubordinatedDebt	8832000	USD
CY2017Q4	us-gaap	Subordinated Debt SubordinatedDebt	9730000	USD
CY2016Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	1075000	USD
CY2017Q4	us-gaap	Unamortized Loan Commitment And Origination Fees And Unamortized Discounts Or Premiums UnamortizedLoanCommitmentAndOriginationFeesAndUnamortizedDiscountsOrPremiums	1039000	USD
CY2016	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	7648	shares
CY2017	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	19328	shares
CY2016	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16889027	shares
CY2017	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16904915	shares
CY2016	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16881379	shares
CY2017	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16885587	shares
CY2016Q4	ubfo	Tier One Common Capitalto Risk Weighted Assets TierOneCommonCapitaltoRiskWeightedAssets	0.1468
CY2017Q4	ubfo	Tier One Common Capitalto Risk Weighted Assets TierOneCommonCapitaltoRiskWeightedAssets	0.1481
CY2015Q4	ubfo	Tier One Common Equity TierOneCommonEquity	85237000	USD
CY2016Q4	ubfo	Tier One Common Equity TierOneCommonEquity	92600000	USD
CY2017Q4	ubfo	Tier One Common Equity TierOneCommonEquity	97313000	USD
CY2017Q4	ubfo	Tier Two Risk Based Capital Requiredfor Capital Adequacyto Risk Weighted Assets TierTwoRiskBasedCapitalRequiredforCapitalAdequacytoRiskWeightedAssets	0.0125
CY2017Q4	ubfo	Tier Two Risk Based Capital Requiredfor Capital Adequacyto Risk Weighted Assets Net Unrealized Gains Losseson Available For Sale Equity Securities Percent TierTwoRiskBasedCapitalRequiredforCapitalAdequacytoRiskWeightedAssetsNetUnrealizedGainsLossesonAvailableForSaleEquitySecuritiesPercent	0.45
CY2016Q4	ubfo	Time Deposits250000or More TimeDeposits250000orMore	15572000	USD
CY2017Q4	ubfo	Time Deposits250000or More TimeDeposits250000orMore	13145000	USD
CY2016Q4	ubfo	Time Deposits Less Than250000 TimeDepositsLessThan250000	87419000	USD
CY2017Q4	ubfo	Time Deposits Less Than250000 TimeDepositsLessThan250000	51687000	USD
CY2016Q4	ubfo	Total Restructured Loans TotalRestructuredLoans	12410000	USD
CY2017Q4	ubfo	Total Restructured Loans TotalRestructuredLoans	11362000	USD
CY2016Q4	ubfo	Us Government Agency Collateralized Mortgage Obligations Fair Value Disclosure USGovernmentAgencyCollateralizedMortgageObligationsFairValueDisclosure	30572000	USD
CY2017Q4	ubfo	Us Government Agency Collateralized Mortgage Obligations Fair Value Disclosure USGovernmentAgencyCollateralizedMortgageObligationsFairValueDisclosure	22031000	USD
CY2017Q4	us-gaap	Accounts Payable And Other Accrued Liabilities AccountsPayableAndOtherAccruedLiabilities	7017000	USD
CY2015	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	44000	USD
CY2016	us-gaap	Accretion Amortization Of Discounts And Premiums Investments AccretionAmortizationOfDiscountsAndPremiumsInvestments	28000	USD
CY2016Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	14865000	USD
CY2017Q4	us-gaap	Accumulated Depreciation Depletion And Amortization Property Plant And Equipment AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment	16093000	USD
CY2015	us-gaap	Advertising Expense AdvertisingExpense	127000	USD
CY2016	us-gaap	Advertising Expense AdvertisingExpense	126000	USD
CY2017	us-gaap	Advertising Expense AdvertisingExpense	154000	USD
CY2015	us-gaap	Antidilutive Securities Excluded From Computation Of Earnings Per Share Amount AntidilutiveSecuritiesExcludedFromComputationOfEarningsPerShareAmount	132000	shares
CY2016Q4	us-gaap	Assets Assets	787972000	USD
CY2017Q4	us-gaap	Assets Assets	805836000	USD
CY2016Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	57792000	USD
CY2017Q4	us-gaap	Assets Fair Value Disclosure AssetsFairValueDisclosure	45722000	USD
CY2016Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	57859000	USD
CY2017Q4	us-gaap	Available For Sale Debt Securities Amortized Cost Basis AvailableForSaleDebtSecuritiesAmortizedCostBasis	46074000	USD
CY2016Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	57491000	USD
CY2017Q4	us-gaap	Available For Sale Securities AvailableForSaleSecurities	45722000	USD
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	387000	USD
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Gain Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedGainBeforeTax	368000	USD
CY2016Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	755000	USD
CY2017Q4	us-gaap	Available For Sale Securities Accumulated Gross Unrealized Loss Before Tax AvailableForSaleSecuritiesAccumulatedGrossUnrealizedLossBeforeTax	720000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	41901000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionFairValue	33156000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	471000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than12 Months Accumulated Loss AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThan12MonthsAccumulatedLoss	157000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	38185000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Less Than Twelve Months Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionLessThanTwelveMonthsFairValue	9211000	USD
CY2016Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	3716000	USD
CY2017Q4	us-gaap	Available For Sale Securities Continuous Unrealized Loss Position Twelve Months Or Longer Fair Value AvailableForSaleSecuritiesContinuousUnrealizedLossPositionTwelveMonthsOrLongerFairValue	23945000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Maturities After One Through Five Years Fair Value AvailableForSaleSecuritiesDebtMaturitiesAfterOneThroughFiveYearsFairValue	0	USD
CY2016Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	57491000	USD
CY2017Q4	us-gaap	Available For Sale Securities Debt Securities AvailableForSaleSecuritiesDebtSecurities	45722000	USD
CY2015	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	0	USD
CY2016	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	0	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Gains AvailableForSaleSecuritiesGrossRealizedGains	0	USD
CY2015	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	0	USD
CY2016	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	0	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Gains Losses Sale Proceeds AvailableForSaleSecuritiesGrossRealizedGainsLossesSaleProceeds	0	USD
CY2015	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	0	USD
CY2016	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	0	USD
CY2017	us-gaap	Available For Sale Securities Gross Realized Losses AvailableForSaleSecuritiesGrossRealizedLosses	0	USD
CY2016Q4	us-gaap	Available For Sale Securities Pledged As Collateral AvailableForSaleSecuritiesPledgedAsCollateral	16670290	USD
CY2015	us-gaap	Bank Owned Life Insurance Income BankOwnedLifeInsuranceIncome	519000	USD
CY2015Q4	us-gaap	Capital Capital	100659000	USD
CY2016Q4	us-gaap	Capital Capital	108868000	USD
CY2017Q4	us-gaap	Capital Capital	115265000	USD
CY2015Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	48358000	USD
CY2016Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	50454000	USD
CY2017Q4	us-gaap	Capital Required For Capital Adequacy CapitalRequiredForCapitalAdequacy	52560000	USD
CY2015Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08
CY2016Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08
CY2017Q4	us-gaap	Capital Required For Capital Adequacy To Risk Weighted Assets CapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.08
CY2015Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1665
CY2016Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1726
CY2017Q4	us-gaap	Capital To Risk Weighted Assets CapitalToRiskWeightedAssets	0.1754
CY2014Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	103577000	USD
CY2015Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	125751000	USD
CY2016Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	113032000	USD
CY2017Q4	us-gaap	Cash And Cash Equivalents At Carrying Value CashAndCashEquivalentsAtCarryingValue	107934000	USD
CY2015	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	22174000	USD
CY2016	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-12719000	USD
CY2017	us-gaap	Cash And Cash Equivalents Period Increase Decrease CashAndCashEquivalentsPeriodIncreaseDecrease	-5098000	USD
CY2016Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	25781000	USD
CY2017Q4	us-gaap	Cash And Due From Banks CashAndDueFromBanks	35237000	USD
CY2016Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	113032000	USD
CY2017Q4	us-gaap	Cash Cash Equivalents And Federal Funds Sold CashCashEquivalentsAndFederalFundsSold	107934000	USD
CY2016Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	6452000	USD
CY2017Q4	us-gaap	Cash Surrender Value Of Life Insurance CashSurrenderValueOfLifeInsurance	6817000	USD
CY2017Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2017Q2	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.05
CY2017Q4	us-gaap	Common Stock Dividends Per Share Declared CommonStockDividendsPerShareDeclared	0.07
CY2016Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2017Q4	us-gaap	Common Stock No Par Value CommonStockNoParValue	0
CY2016Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2016Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	16051406	shares
CY2017Q4	us-gaap	Common Stock Shares Issued CommonStockSharesIssued	16885615	shares
CY2016Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	16051406	shares
CY2017Q4	us-gaap	Common Stock Shares Authorized CommonStockSharesAuthorized	20000000	shares
CY2017Q4	us-gaap	Common Stock Shares Outstanding CommonStockSharesOutstanding	16885615	shares
CY2015	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	6783000	USD
CY2016	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	6983000	USD
CY2017	us-gaap	Comprehensive Income Net Of Tax ComprehensiveIncomeNetOfTax	8647000	USD
CY2015	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	2847000	USD
CY2016	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	2642000	USD
CY2017	us-gaap	Current Federal Tax Expense Benefit CurrentFederalTaxExpenseBenefit	4745000	USD
CY2015	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2857000	USD
CY2016	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	2670000	USD
CY2017	us-gaap	Current Income Tax Expense Benefit CurrentIncomeTaxExpenseBenefit	6133000	USD
CY2015	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	10000	USD
CY2016	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	28000	USD
CY2017	us-gaap	Current State And Local Tax Expense Benefit CurrentStateAndLocalTaxExpenseBenefit	1388000	USD
CY2017Q4	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	12000000	USD
CY2007Q3	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	15000000	USD
CY2013Q3	us-gaap	Debt Instrument Face Amount DebtInstrumentFaceAmount	15000000	USD
CY2015	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	465000	USD
CY2016	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	941000	USD
CY2017	us-gaap	Deferred Federal Income Tax Expense Benefit DeferredFederalIncomeTaxExpenseBenefit	-881000	USD
CY2015	us-gaap	Deferred Income Tax Expense Benefit DeferredIncomeTaxExpenseBenefit	1640000	USD
CY2016Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	5768000	USD
CY2017Q4	us-gaap	Deferred Income Tax Liabilities DeferredIncomeTaxLiabilities	3105000	USD
CY2015	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1175000	USD
CY2016	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1258000	USD
CY2017	us-gaap	Deferred State And Local Income Tax Expense Benefit DeferredStateAndLocalIncomeTaxExpenseBenefit	1787000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	9066000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Gross DeferredTaxAssetsGross	5494000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	3298000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Liabilities Net DeferredTaxAssetsLiabilitiesNet	2389000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	1897000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Other DeferredTaxAssetsOther	361000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	51000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Property Plant And Equipment DeferredTaxAssetsPropertyPlantAndEquipment	324000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	4151000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Credit Carryforwards DeferredTaxAssetsTaxCreditCarryforwards	3055000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	1782000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Compensation And Benefits DeferredTaxAssetsTaxDeferredExpenseCompensationAndBenefits	1300000	USD
CY2016Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	200000	USD
CY2017Q4	us-gaap	Deferred Tax Assets Tax Deferred Expense Reserves And Accruals Accrued Liabilities DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsAccruedLiabilities	90000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	1318000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Deferred Expense Deferred Financing Costs DeferredTaxLiabilitiesDeferredExpenseDeferredFinancingCosts	835000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	1222000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Investments DeferredTaxLiabilitiesInvestments	873000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	280000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Prepaid Expenses DeferredTaxLiabilitiesPrepaidExpenses	161000	USD
CY2016Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	1657000	USD
CY2017Q4	us-gaap	Deferred Tax Liabilities Tax Deferred Income DeferredTaxLiabilitiesTaxDeferredIncome	896000	USD
CY2015	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	371000	USD
CY2016	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	383000	USD
CY2017	us-gaap	Defined Benefit Plan Amounts Recognized In Other Comprehensive Income Loss Net Gain Loss Before Tax DefinedBenefitPlanAmountsRecognizedInOtherComprehensiveIncomeLossNetGainLossBeforeTax	462000	USD
CY2016Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0321
CY2017Q4	us-gaap	Defined Benefit Plan Assumptions Used Calculating Benefit Obligation Discount Rate DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate	0.0304
CY2015	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	240000	USD
CY2016	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	280000	USD
CY2017	us-gaap	Defined Benefit Plan Contributions By Employer DefinedBenefitPlanContributionsByEmployer	255000	USD
CY2017	us-gaap	Defined Contribution Plan Employers Matching Contribution Annual Vesting Percentage DefinedContributionPlanEmployersMatchingContributionAnnualVestingPercentage	1
CY2016Q4	us-gaap	Deposits Deposits	676629000	USD
CY2017Q4	us-gaap	Deposits Deposits	687693000	USD
CY2015	us-gaap	Depreciation Depreciation	1462000	USD
CY2016	us-gaap	Depreciation Depreciation	1428000	USD
CY2017	us-gaap	Depreciation Depreciation	1335000	USD
CY2015	us-gaap	Depreciation Amortization And Accretion Net DepreciationAmortizationAndAccretionNet	1462000	USD
CY2015	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.40
CY2016Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2016Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
CY2016Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.12
CY2016Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.09
CY2016	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.44
CY2017Q1	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2017Q2	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.15
CY2017Q3	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.16
CY2017Q4	us-gaap	Earnings Per Share Basic EarningsPerShareBasic	0.10
CY2015	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.40
CY2016Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2016Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
CY2016Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.12
CY2016Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.09
CY2017Q1	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2017Q2	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.15
CY2017Q3	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.16
CY2017Q4	us-gaap	Earnings Per Share Diluted EarningsPerShareDiluted	0.10
CY2015	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.398
CY2016	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.397
CY2017	us-gaap	Effective Income Tax Rate Continuing Operations EffectiveIncomeTaxRateContinuingOperations	0.449
CY2015	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2016	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.34
CY2017	us-gaap	Effective Income Tax Rate Reconciliation At Federal Statutory Income Tax Rate EffectiveIncomeTaxRateReconciliationAtFederalStatutoryIncomeTaxRate	0.35
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.000
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Change In Enacted Tax Rate EffectiveIncomeTaxRateReconciliationChangeInEnactedTaxRate	0.063
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.011
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.012
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Other Adjustments EffectiveIncomeTaxRateReconciliationOtherAdjustments	-0.026
CY2015	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies State And Local EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal	0.069
CY2016	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies State And Local EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal	0.069
CY2017	us-gaap	Effective Income Tax Rate Reconciliation Tax Contingencies State And Local EffectiveIncomeTaxRateReconciliationTaxContingenciesStateAndLocal	0.062
CY2017	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Period For Recognition1 EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedPeriodForRecognition1	P4Y7M6D
CY2015Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	48000	USD
CY2016Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	30000	USD
CY2017Q4	us-gaap	Employee Service Share Based Compensation Nonvested Awards Total Compensation Cost Not Yet Recognized Share Based Awards Other Than Options EmployeeServiceShareBasedCompensationNonvestedAwardsTotalCompensationCostNotYetRecognizedShareBasedAwardsOtherThanOptions	418000	USD
CY2015	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	0	USD
CY2016	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	900	USD
CY2017	us-gaap	Equity Method Investment Summarized Financial Information Net Income Loss EquityMethodInvestmentSummarizedFinancialInformationNetIncomeLoss	7000	USD
CY2016Q1	us-gaap	Excess Tier One Risk Based Capital To Risk Weighted Assets ExcessTierOneRiskBasedCapitalToRiskWeightedAssets	0.00625
CY2015	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	959000	USD
CY2017	us-gaap	Federal Deposit Insurance Corporation Premium Expense FederalDepositInsuranceCorporationPremiumExpense	391000	USD
CY2016Q4	us-gaap	Federal Funds Sold And Securities Borrowed Or Purchased Under Agreements To Resell Fair Value Disclosure FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure	23203000	USD
CY2017Q4	us-gaap	Federal Funds Sold And Securities Borrowed Or Purchased Under Agreements To Resell Fair Value Disclosure FederalFundsSoldAndSecuritiesBorrowedOrPurchasedUnderAgreementsToResellFairValueDisclosure	19954000	USD
CY2016Q4	us-gaap	Federal Home Loan Bank Advances Current FederalHomeLoanBankAdvancesCurrent	0	USD
CY2017Q4	us-gaap	Federal Home Loan Bank Advances Current FederalHomeLoanBankAdvancesCurrent	0	USD
CY2015	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	3312000	USD
CY2016	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	3583000	USD
CY2017	us-gaap	Federal Income Tax Expense Benefit Continuing Operations FederalIncomeTaxExpenseBenefitContinuingOperations	3864000	USD
CY2015	us-gaap	Fees And Commissions FeesAndCommissions	3620000	USD
CY2016Q4	us-gaap	Financial Instruments Owned Corporate Equities At Fair Value FinancialInstrumentsOwnedCorporateEquitiesAtFairValue	3716000	USD
CY2017Q4	us-gaap	Financial Instruments Owned Corporate Equities At Fair Value FinancialInstrumentsOwnedCorporateEquitiesAtFairValue	3737000	USD
CY2014Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	10771000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9713000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	8902000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses FinancingReceivableAllowanceForCreditLosses	9267000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	6616000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	7542000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Collectively Evaluated For Impairment FinancingReceivableAllowanceForCreditLossesCollectivelyEvaluatedForImpairment	7379000	USD
CY2015Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	3097000	USD
CY2016Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1360000	USD
CY2017Q4	us-gaap	Financing Receivable Allowance For Credit Losses Individually Evaluated For Impairment1 FinancingReceivableAllowanceForCreditLossesIndividuallyEvaluatedForImpairment1	1888000	USD
CY2015	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	1017000	USD
CY2016	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	790000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Period Increase Decrease FinancingReceivableAllowanceForCreditLossesPeriodIncreaseDecrease	-341000	USD
CY2015	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	869000	USD
CY2016	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	133000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Recovery FinancingReceivableAllowanceForCreditLossesRecovery	504000	USD
CY2015	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	1886000	USD
CY2016	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	923000	USD
CY2017	us-gaap	Financing Receivable Allowance For Credit Losses Write Offs FinancingReceivableAllowanceForCreditLossesWriteOffs	163000	USD
CY2015Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	491639000	USD
CY2016Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	553580000	USD
CY2017Q4	us-gaap	Financing Receivable Collectively Evaluated For Impairment FinancingReceivableCollectivelyEvaluatedForImpairment	586561000	USD
CY2015Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	23679000	USD
CY2016Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	16179000	USD
CY2017Q4	us-gaap	Financing Receivable Individually Evaluated For Impairment FinancingReceivableIndividuallyEvaluatedForImpairment	14790000	USD
CY2015	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	6770000	USD
CY2016	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	2370000	USD
CY2017	us-gaap	Financing Receivable Modifications Post Modification Recorded Investment2 FinancingReceivableModificationsPostModificationRecordedInvestment2	3553000	USD
CY2015	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	6785000	USD
CY2016	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	2641000	USD
CY2017	us-gaap	Financing Receivable Modifications Pre Modification Recorded Investment2 FinancingReceivableModificationsPreModificationRecordedInvestment2	3553000	USD
CY2014Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	15000000	USD
CY2015Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	18508000	USD
CY2016Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	12410000	USD
CY2017Q4	us-gaap	Financing Receivable Modifications Recorded Investment FinancingReceivableModificationsRecordedInvestment	11362000	USD
CY2015	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	0	contract
CY2016	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1	contract
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Number Of Contracts1 FinancingReceivableModificationsSubsequentDefaultNumberOfContracts1	1	contract
CY2015	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	0	USD
CY2016	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	290000	USD
CY2017	us-gaap	Financing Receivable Modifications Subsequent Default Recorded Investment1 FinancingReceivableModificationsSubsequentDefaultRecordedInvestment1	288000	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	1250000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment90 Days Past Due And Still Accruing FinancingReceivableRecordedInvestment90DaysPastDueAndStillAccruing	485000	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	566656000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Current FinancingReceivableRecordedInvestmentCurrent	599906000	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	7264000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Nonaccrual Status FinancingReceivableRecordedInvestmentNonaccrualStatus	5296000	USD
CY2016Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	3103000	USD
CY2017Q4	us-gaap	Financing Receivable Recorded Investment Past Due FinancingReceivableRecordedInvestmentPastDue	1445000	USD
CY2015	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	3226000	USD
CY2016	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	7781000	USD
CY2017	us-gaap	Financing Receivables Impaired Troubled Debt Restructuring Write Down FinancingReceivablesImpairedTroubledDebtRestructuringWriteDown	4276000	USD
CY2017Q4	us-gaap	Finite Lived Intangible Assets Net FiniteLivedIntangibleAssetsNet	0	USD
CY2015	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	-23000	USD
CY2016	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	0	USD
CY2017	us-gaap	Gain Loss On Sale Of Other Investments GainLossOnSaleOfOtherInvestments	3000	USD
CY2015	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	10000	USD
CY2016	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	0	USD
CY2017	us-gaap	Gain Loss On Sale Of Property Plant Equipment GainLossOnSaleOfPropertyPlantEquipment	73000	USD
CY2015	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	78000	USD
CY2016	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2017	us-gaap	Gains Losses On Extinguishment Of Debt GainsLossesOnExtinguishmentOfDebt	0	USD
CY2015	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	-619000	USD
CY2016	us-gaap	Gains Losses On Sales Of Investment Real Estate GainsLossesOnSalesOfInvestmentRealEstate	-263000	USD
CY2015	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	16000	USD
CY2016	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	37000	USD
CY2017	us-gaap	Gains Losses On Sales Of Other Real Estate GainsLossesOnSalesOfOtherRealEstate	336000	USD
CY2016Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	0	USD
CY2017Q4	us-gaap	Held To Maturity Securities HeldToMaturitySecurities	0	USD
CY2015	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	17462000	USD
CY2016	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	19566000	USD
CY2017	us-gaap	Impaired Financing Receivable Average Recorded Investment ImpairedFinancingReceivableAverageRecordedInvestment	15973000	USD
CY2015	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	1440000	USD
CY2016	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	953000	USD
CY2017	us-gaap	Impaired Financing Receivable Interest Income Accrual Method ImpairedFinancingReceivableInterestIncomeAccrualMethod	921000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	23679000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	16179000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Recorded Investment ImpairedFinancingReceivableRecordedInvestment	14790000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	3097000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	1360000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Related Allowance ImpairedFinancingReceivableRelatedAllowance	1888000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	23612000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	16144000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable Unpaid Principal Balance ImpairedFinancingReceivableUnpaidPrincipalBalance	14728000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	7275000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	8616000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With No Related Allowance Recorded Investment ImpairedFinancingReceivableWithNoRelatedAllowanceRecordedInvestment	7603000	USD
CY2015	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	67000	USD
CY2017	us-gaap	Impaired Financing Receivable With Related Allowance Interest Income Accrual Method ImpairedFinancingReceivableWithRelatedAllowanceInterestIncomeAccrualMethod	62000	USD
CY2015Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	16404000	USD
CY2016Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	7563000	USD
CY2017Q4	us-gaap	Impaired Financing Receivable With Related Allowance Recorded Investment ImpairedFinancingReceivableWithRelatedAllowanceRecordedInvestment	7187000	USD
CY2015	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	188000	USD
CY2016	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2017	us-gaap	Impairment Of Real Estate ImpairmentOfRealEstate	0	USD
CY2015	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	11307000	USD
CY2016Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	2894000	USD
CY2016Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3257000	USD
CY2016Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3322000	USD
CY2016Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	2781000	USD
CY2016	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	12254000	USD
CY2017Q1	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	2926000	USD
CY2017Q2	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	4183000	USD
CY2017Q3	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	4580000	USD
CY2017Q4	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	3991000	USD
CY2017	us-gaap	Income Loss From Continuing Operations Before Income Taxes Minority Interest And Income Loss From Equity Method Investments IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments	15679000	USD
CY2015	us-gaap	Income Loss From Equity Method Investments IncomeLossFromEquityMethodInvestments	-73000	USD
CY2015	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	4497000	USD
CY2016Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1125000	USD
CY2016Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1236000	USD
CY2016Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1282000	USD
CY2016Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1226000	USD
CY2017Q1	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1155000	USD
CY2017Q2	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1691000	USD
CY2017Q3	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	1840000	USD
CY2017Q4	us-gaap	Income Tax Expense Benefit IncomeTaxExpenseBenefit	2354000	USD
CY2015	us-gaap	Increase Decrease In Accrued Interest Receivable Net IncreaseDecreaseInAccruedInterestReceivableNet	293000	USD
CY2015	us-gaap	Increase Decrease In Interest Payable Net IncreaseDecreaseInInterestPayableNet	-11000	USD
CY2015	us-gaap	Increase Decrease In Other Deposits IncreaseDecreaseInOtherDeposits	65418000	USD
CY2015	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	-297000	USD
CY2017	us-gaap	Increase Decrease In Other Operating Assets IncreaseDecreaseInOtherOperatingAssets	618000	USD
CY2015	us-gaap	Increase Decrease In Time Deposits IncreaseDecreaseInTimeDeposits	-8986000	USD
CY2015	us-gaap	Increase Decrease In Unearned Premiums IncreaseDecreaseInUnearnedPremiums	-382000	USD
CY2015	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	0	USD
CY2016	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	0	USD
CY2017	us-gaap	Income Tax Reconciliation Tax Credits IncomeTaxReconciliationTaxCredits	0	USD
CY2015	us-gaap	Income Taxes Paid IncomeTaxesPaid	3080000	USD
CY2015	us-gaap	Increase Decrease In Accounts Payable And Accrued Liabilities IncreaseDecreaseInAccountsPayableAndAccruedLiabilities	29000	USD
CY2015	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-229000	USD
CY2016	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	957000	USD
CY2017	us-gaap	Increase Decrease In Accrued Income Taxes Payable IncreaseDecreaseInAccruedIncomeTaxesPayable	-734000	USD
CY2015	us-gaap	Information Technology And Data Processing InformationTechnologyAndDataProcessing	126000	USD
CY2015	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	399000	USD
CY2016	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	465000	USD
CY2017	us-gaap	Insurance Commissions And Fees InsuranceCommissionsAndFees	485000	USD
CY2015	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	27410000	USD
CY2016Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	6946000	USD
CY2016Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	6996000	USD
CY2016Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	7753000	USD
CY2016Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	7779000	USD
CY2016	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	29473000	USD
CY2017Q1	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	7633000	USD
CY2017Q2	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	8110000	USD
CY2017Q3	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	8592000	USD
CY2017Q4	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	8595000	USD
CY2017	us-gaap	Interest And Dividend Income Operating InterestAndDividendIncomeOperating	32930000	USD
CY2015	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	26469000	USD
CY2016Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	6631000	USD
CY2016Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	6658000	USD
CY2016Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	7435000	USD
CY2016Q4	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	7460000	USD
CY2017Q1	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	7225000	USD
CY2017Q2	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	7579000	USD
CY2017Q3	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	7978000	USD
CY2017Q4	us-gaap	Interest And Fee Income Loans And Leases InterestAndFeeIncomeLoansAndLeases	8035000	USD
CY2016Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	650000	USD
CY2017Q4	us-gaap	Interest Bearing Deposits In Banks InterestBearingDepositsInBanks	0	USD
CY2015	us-gaap	Interest Expense InterestExpense	1281000	USD
CY2016Q1	us-gaap	Interest Expense InterestExpense	335000	USD
CY2016Q2	us-gaap	Interest Expense InterestExpense	330000	USD
CY2016Q3	us-gaap	Interest Expense InterestExpense	349000	USD
CY2016Q4	us-gaap	Interest Expense InterestExpense	395000	USD
CY2016	us-gaap	Interest Expense InterestExpense	1409000	USD
CY2017Q1	us-gaap	Interest Expense InterestExpense	405000	USD
CY2017Q2	us-gaap	Interest Expense InterestExpense	438000	USD
CY2017Q3	us-gaap	Interest Expense InterestExpense	435000	USD
CY2017Q4	us-gaap	Interest Expense InterestExpense	451000	USD
CY2017	us-gaap	Interest Expense InterestExpense	1730000	USD
CY2015	us-gaap	Interest Expense Deposits InterestExpenseDeposits	1056000	USD
CY2015	us-gaap	Interest Expense Loans From Other Federal Home Loan Banks InterestExpenseLoansFromOtherFederalHomeLoanBanks	225000	USD
CY2015	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	213000	USD
CY2016	us-gaap	Interest Income Deposits With Financial Institutions InterestIncomeDepositsWithFinancialInstitutions	458000	USD
CY2015	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	26170000	USD
CY2016Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	6633000	USD
CY2016Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	6654000	USD
CY2016Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	7400000	USD
CY2016Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	7398000	USD
CY2016	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	28085000	USD
CY2017Q1	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	7207000	USD
CY2017Q2	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	7724000	USD
CY2017Q3	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	8150000	USD
CY2017Q4	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	8096000	USD
CY2017	us-gaap	Interest Income Expense After Provision For Loan Loss InterestIncomeExpenseAfterProvisionForLoanLoss	31176000	USD
CY2015	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	26129000	USD
CY2016Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	6611000	USD
CY2016Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	6666000	USD
CY2016Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	7404000	USD
CY2016Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	7384000	USD
CY2016	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	28064000	USD
CY2017Q1	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	7228000	USD
CY2017Q2	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	7672000	USD
CY2017Q3	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	8157000	USD
CY2017Q4	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	8144000	USD
CY2017	us-gaap	Interest Income Expense Net InterestIncomeExpenseNet	31200000	USD
CY2016Q1	us-gaap	Interest Income Operating InterestIncomeOperating	315000	USD
CY2016Q2	us-gaap	Interest Income Operating InterestIncomeOperating	338000	USD
CY2016Q3	us-gaap	Interest Income Operating InterestIncomeOperating	318000	USD
CY2016Q4	us-gaap	Interest Income Operating InterestIncomeOperating	319000	USD
CY2017Q1	us-gaap	Interest Income Operating InterestIncomeOperating	408000	USD
CY2017Q2	us-gaap	Interest Income Operating InterestIncomeOperating	531000	USD
CY2017Q3	us-gaap	Interest Income Operating InterestIncomeOperating	614000	USD
CY2017Q4	us-gaap	Interest Income Operating InterestIncomeOperating	560000	USD
CY2015	us-gaap	Interest Income Securities Taxable InterestIncomeSecuritiesTaxable	722000	USD
CY2015	us-gaap	Interest Paid InterestPaid	1243000	USD
CY2017	us-gaap	Interest Paid InterestPaid	1762000	USD
CY2016Q4	us-gaap	Interest Payable Current And Noncurrent InterestPayableCurrentAndNoncurrent	76000	USD
CY2017	us-gaap	Investment Tax Credit InvestmentTaxCredit	1800000	USD
CY2015	us-gaap	Labor And Related Expense LaborAndRelatedExpense	9921000	USD
CY2016	us-gaap	Labor And Related Expense LaborAndRelatedExpense	10628000	USD
CY2016Q4	us-gaap	Liabilities Liabilities	691318000	USD
CY2017Q4	us-gaap	Liabilities Liabilities	704484000	USD
CY2016Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	787972000	USD
CY2017Q4	us-gaap	Liabilities And Stockholders Equity LiabilitiesAndStockholdersEquity	805836000	USD
CY2016Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	8832000	USD
CY2017Q4	us-gaap	Liabilities Fair Value Disclosure LiabilitiesFairValueDisclosure	9730000	USD
CY2015	us-gaap	Life Insurance Corporate Or Bank Owned Change In Value LifeInsuranceCorporateOrBankOwnedChangeInValue	519000	USD
CY2015	us-gaap	Loans And Leases Receivable Commitments Fixed Rates LoansAndLeasesReceivableCommitmentsFixedRates	7431000	USD
CY2016	us-gaap	Loans And Leases Receivable Commitments Fixed Rates LoansAndLeasesReceivableCommitmentsFixedRates	4891000	USD
CY2017	us-gaap	Loans And Leases Receivable Commitments Fixed Rates LoansAndLeasesReceivableCommitmentsFixedRates	7470000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Consumer Installment Student LoansAndLeasesReceivableConsumerInstallmentStudent	60595000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Gross Carrying Amount LoansAndLeasesReceivableGrossCarryingAmount	515318000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Impaired Commitment To Lend LoansAndLeasesReceivableImpairedCommitmentToLend	0	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	561932000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Net Reported Amount LoansAndLeasesReceivableNetReportedAmount	593123000	USD
CY2014Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	2120000	USD
CY2015Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	3754000	USD
CY2016Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	5838000	USD
CY2017Q4	us-gaap	Loans And Leases Receivable Related Parties LoansAndLeasesReceivableRelatedParties	3729000	USD
CY2015	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	3946000	USD
CY2016	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	3788000	USD
CY2017	us-gaap	Loans And Leases Receivable Related Parties Additions LoansAndLeasesReceivableRelatedPartiesAdditions	440000	USD
CY2015	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	2312000	USD
CY2016	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	1704000	USD
CY2017	us-gaap	Loans And Leases Receivable Related Parties Proceeds LoansAndLeasesReceivableRelatedPartiesProceeds	2549000	USD
CY2017Q4	us-gaap	Mortgage Loans On Real Estate Commercial And Consumer Net MortgageLoansOnRealEstateCommercialAndConsumerNet	133000000	USD
CY2015	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	54632000	USD
CY2016	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	54830000	USD
CY2017	us-gaap	Net Cash Provided By Used In Financing Activities NetCashProvidedByUsedInFinancingActivities	8203000	USD
CY2015	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-41722000	USD
CY2016	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-77007000	USD
CY2017	us-gaap	Net Cash Provided By Used In Investing Activities NetCashProvidedByUsedInInvestingActivities	-20856000	USD
CY2015	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	9264000	USD
CY2016	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	9458000	USD
CY2017	us-gaap	Net Cash Provided By Used In Operating Activities NetCashProvidedByUsedInOperatingActivities	7555000	USD
CY2015	us-gaap	Net Income Loss NetIncomeLoss	6810000	USD
CY2016Q1	us-gaap	Net Income Loss NetIncomeLoss	1769000	USD
CY2016Q2	us-gaap	Net Income Loss NetIncomeLoss	2021000	USD
CY2016Q3	us-gaap	Net Income Loss NetIncomeLoss	2040000	USD
CY2016Q4	us-gaap	Net Income Loss NetIncomeLoss	1555000	USD
CY2016	us-gaap	Net Income Loss NetIncomeLoss	7385000	USD
CY2017Q1	us-gaap	Net Income Loss NetIncomeLoss	1771000	USD
CY2017Q2	us-gaap	Net Income Loss NetIncomeLoss	2492000	USD
CY2017Q3	us-gaap	Net Income Loss NetIncomeLoss	2740000	USD
CY2017Q4	us-gaap	Net Income Loss NetIncomeLoss	1637000	USD
CY2017	us-gaap	Net Income Loss NetIncomeLoss	8640000	USD
CY2015	us-gaap	Net Income Loss Available To Common Stockholders Basic NetIncomeLossAvailableToCommonStockholdersBasic	6810000	USD
CY2016Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	262697000	USD
CY2017Q4	us-gaap	Noninterest Bearing Deposit Liabilities NoninterestBearingDepositLiabilities	307299000	USD
CY2015	us-gaap	Noninterest Expense NoninterestExpense	19598000	USD
CY2016Q1	us-gaap	Noninterest Expense NoninterestExpense	5300000	USD
CY2016Q2	us-gaap	Noninterest Expense NoninterestExpense	4824000	USD
CY2016Q3	us-gaap	Noninterest Expense NoninterestExpense	4864000	USD
CY2016Q4	us-gaap	Noninterest Expense NoninterestExpense	5358000	USD
CY2016	us-gaap	Noninterest Expense NoninterestExpense	20345000	USD
CY2017Q1	us-gaap	Noninterest Expense NoninterestExpense	5190000	USD
CY2017Q2	us-gaap	Noninterest Expense NoninterestExpense	4607000	USD
CY2017Q3	us-gaap	Noninterest Expense NoninterestExpense	4746000	USD
CY2017Q4	us-gaap	Noninterest Expense NoninterestExpense	5260000	USD
CY2017	us-gaap	Noninterest Expense NoninterestExpense	19803000	USD
CY2015	us-gaap	Noninterest Expense Directors Fees NoninterestExpenseDirectorsFees	277000	USD
CY2015	us-gaap	Noninterest Income NoninterestIncome	4735000	USD
CY2016Q1	us-gaap	Noninterest Income NoninterestIncome	1561000	USD
CY2016Q2	us-gaap	Noninterest Income NoninterestIncome	1427000	USD
CY2016Q3	us-gaap	Noninterest Income NoninterestIncome	786000	USD
CY2016Q4	us-gaap	Noninterest Income NoninterestIncome	741000	USD
CY2016	us-gaap	Noninterest Income NoninterestIncome	4514000	USD
CY2017Q1	us-gaap	Noninterest Income NoninterestIncome	909000	USD
CY2017Q2	us-gaap	Noninterest Income NoninterestIncome	1066000	USD
CY2017Q3	us-gaap	Noninterest Income NoninterestIncome	1176000	USD
CY2017Q4	us-gaap	Noninterest Income NoninterestIncome	1155000	USD
CY2017	us-gaap	Noninterest Income NoninterestIncome	4306000	USD
CY2015	us-gaap	Noninterest Income Other Operating Income NoninterestIncomeOtherOperatingIncome	604000	USD
CY2016Q4	us-gaap	Notes Receivable Net NotesReceivableNet	436823000	USD
CY2017Q4	us-gaap	Notes Receivable Net NotesReceivableNet	450509000	USD
CY2017	us-gaap	Number Of Operating Segments NumberOfOperatingSegments	1	segment
CY2015	us-gaap	Occupancy Net OccupancyNet	4042000	USD
CY2017	us-gaap	Occupancy Net OccupancyNet	4254000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due OperatingLeasesFutureMinimumPaymentsDue	3104000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Current OperatingLeasesFutureMinimumPaymentsDueCurrent	710000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Five Years OperatingLeasesFutureMinimumPaymentsDueInFiveYears	282000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Four Years OperatingLeasesFutureMinimumPaymentsDueInFourYears	288000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Three Years OperatingLeasesFutureMinimumPaymentsDueInThreeYears	484000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due In Two Years OperatingLeasesFutureMinimumPaymentsDueInTwoYears	534000	USD
CY2017Q4	us-gaap	Operating Leases Future Minimum Payments Due Thereafter OperatingLeasesFutureMinimumPaymentsDueThereafter	806000	USD
CY2015	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	782000	USD
CY2016	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	862000	USD
CY2017	us-gaap	Operating Leases Rent Expense Minimum Rentals OperatingLeasesRentExpenseMinimumRentals	922000	USD
CY2017Q4	us-gaap	Other Assets OtherAssets	8391000	USD
CY2016Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	0	USD
CY2017Q4	us-gaap	Other Assets Fair Value Disclosure OtherAssetsFairValueDisclosure	0	USD
CY2015	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-27000	USD
CY2016	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	-402000	USD
CY2017	us-gaap	Other Comprehensive Income Availableforsale Securities Adjustment Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeAvailableforsaleSecuritiesAdjustmentNetOfTaxPortionAttributableToParent	7000	USD
CY2015	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	92000	USD
CY2017	us-gaap	Other Comprehensive Income Defined Benefit Plans Net Unamortized Gain Loss Arising During Period Tax OtherComprehensiveIncomeDefinedBenefitPlansNetUnamortizedGainLossArisingDuringPeriodTax	-3000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-41000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	-670000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Before Tax Portion Attributable To Parent OtherComprehensiveIncomeLossBeforeTaxPortionAttributableToParent	10000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-27000	USD
CY2016	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	-402000	USD
CY2017	us-gaap	Other Comprehensive Income Loss Net Of Tax Portion Attributable To Parent OtherComprehensiveIncomeLossNetOfTaxPortionAttributableToParent	7000	USD
CY2015	us-gaap	Other Comprehensive Income Loss Pension And Other Postretirement Benefit Plans Net Unamortized Gain Loss Arising During Period Before Tax OtherComprehensiveIncomeLossPensionAndOtherPostretirementBenefitPlansNetUnamortizedGainLossArisingDuringPeriodBeforeTax	224000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Before Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodBeforeTax	-265000	USD
CY2015	us-gaap	Other Comprehensive Income Unrealized Holding Gain Loss On Securities Arising During Period Tax OtherComprehensiveIncomeUnrealizedHoldingGainLossOnSecuritiesArisingDuringPeriodTax	-106000	USD
CY2015	us-gaap	Other Interest And Dividend Income OtherInterestAndDividendIncome	6000	USD
CY2015	us-gaap	Other Noninterest Expense OtherNoninterestExpense	2444000	USD
CY2015	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2016	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2017	us-gaap	Other Than Temporary Impairment Losses Investments Availableforsale Securities OtherThanTemporaryImpairmentLossesInvestmentsAvailableforsaleSecurities	0	USD
CY2015	us-gaap	Payments For Proceeds From Federal Home Loan Bank Stock PaymentsForProceedsFromFederalHomeLoanBankStock	147000	USD
CY2015	us-gaap	Payments For Proceeds From Limited Partnership PaymentsForProceedsFromLimitedPartnership	119000	USD
CY2015	us-gaap	Payments For Proceeds From Loans And Leases PaymentsForProceedsFromLoansAndLeases	58642000	USD
CY2017Q2	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	844000	USD
CY2017Q2	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	844000	USD
CY2017Q3	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1182000	USD
CY2017Q4	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	1182000	USD
CY2015	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	0	USD
CY2016	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	0	USD
CY2017	us-gaap	Payments Of Dividends Common Stock PaymentsOfDividendsCommonStock	2870000	USD
CY2015	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	0	USD
CY2016	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	34987000	USD
CY2017	us-gaap	Payments To Acquire Available For Sale Securities PaymentsToAcquireAvailableForSaleSecurities	0	USD
CY2015	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	220000	USD
CY2016	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	220000	USD
CY2017	us-gaap	Payments To Acquire Life Insurance Policies PaymentsToAcquireLifeInsurancePolicies	0	USD
CY2015	us-gaap	Payments To Acquire Property Plant And Equipment PaymentsToAcquirePropertyPlantAndEquipment	725000	USD
CY2017	us-gaap	Postemployment Benefits Period Expense PostemploymentBenefitsPeriodExpense	49000	USD
CY2017	us-gaap	Proceeds From Dividends Received ProceedsFromDividendsReceived	4291000	USD
CY2015	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	11000000	USD
CY2016	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	2600000	USD
CY2017	us-gaap	Proceeds From Maturities Prepayments And Calls Of Available For Sale Securities ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities	0	USD
CY2015	us-gaap	Proceeds From Payments For In Interest Bearing Deposits In Banks ProceedsFromPaymentsForInInterestBearingDepositsInBanks	-6000	USD
CY2015	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	1192000	USD
CY2016	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	3378000	USD
CY2017	us-gaap	Proceeds From Sale Of Other Real Estate ProceedsFromSaleOfOtherRealEstate	1062000	USD
CY2015	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	23000	USD
CY2016	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2017	us-gaap	Proceeds From Sale Of Property Plant And Equipment ProceedsFromSaleOfPropertyPlantAndEquipment	0	USD
CY2015	us-gaap	Proceeds From Stock Options Exercised ProceedsFromStockOptionsExercised	0	USD
CY2015	us-gaap	Professional Fees ProfessionalFees	1137000	USD
CY2016Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	25310000	USD
CY2017Q4	us-gaap	Property Plant And Equipment Gross PropertyPlantAndEquipmentGross	26258000	USD
CY2015	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-41000	USD
CY2016Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-22000	USD
CY2016Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	12000	USD
CY2016Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	4000	USD
CY2016Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-14000	USD
CY2017Q1	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	21000	USD
CY2017	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2017Q4	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	48000	USD
CY2015	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	41000	USD
CY2016	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	21000	USD
CY2017	us-gaap	Provision For Loan Lease And Other Losses ProvisionForLoanLeaseAndOtherLosses	-24000	USD
CY2015	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	1800000	USD
CY2016	us-gaap	Repayments Of Subordinated Debt RepaymentsOfSubordinatedDebt	0	USD
CY2017Q2	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	-52000	USD
CY2017Q3	us-gaap	Provision For Loan And Lease Losses ProvisionForLoanAndLeaseLosses	7000	USD
CY2015	us-gaap	Share Based Compensation ShareBasedCompensation	26000	USD
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercisable Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisableWeightedAverageExercisePrice	3.87
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	0	USD
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	4500	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Exercises In Period Total Intrinsic Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExercisesInPeriodTotalIntrinsicValue	12383	USD
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Forfeitures In Period ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsForfeituresInPeriod	0	shares
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Gross ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross	60000	shares
CY2015	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0.00
CY2016	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	0.00
CY2017	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Grants In Period Weighted Average Grant Date Fair Value ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageGrantDateFairValue	7.18
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	37115	shares
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Number ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber	94601	shares
CY2016Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	3.83
CY2017Q4	us-gaap	Share Based Compensation Arrangement By Share Based Payment Award Options Outstanding Weighted Average Exercise Price ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice	7.87
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Exercises In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice	2.55
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Forfeitures In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsForfeituresInPeriodWeightedAverageExercisePrice	0.00
CY2017	us-gaap	Share Based Compensation Arrangements By Share Based Payment Award Options Grants In Period Weighted Average Exercise Price ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice	10.15
CY2017Q4	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Intrinsic Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableIntrinsicValue1	189000	USD
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Exercisable Weighted Average Remaining Contractual Term1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1	P5Y8M12D
CY2015	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	19640	USD
CY2016	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	19650	USD
CY2017	us-gaap	Sharebased Compensation Arrangement By Sharebased Payment Award Options Vested In Period Fair Value1 SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsVestedInPeriodFairValue1	17845	USD
CY2015	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1185000	USD
CY2016	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	1286000	USD
CY2017	us-gaap	State And Local Income Tax Expense Benefit Continuing Operations StateAndLocalIncomeTaxExpenseBenefitContinuingOperations	3175000	USD
CY2016	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2513	shares
CY2017	us-gaap	Stock Issued During Period Shares Stock Options Exercised StockIssuedDuringPeriodSharesStockOptionsExercised	2514	shares
CY2016	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	6000	USD
CY2017	us-gaap	Stock Issued During Period Value New Issues StockIssuedDuringPeriodValueNewIssues	6000	USD
CY2015	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	26000	USD
CY2016	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	30000	USD
CY2017	us-gaap	Stock Issued During Period Value Share Based Compensation StockIssuedDuringPeriodValueShareBasedCompensation	97000	USD
CY2015	us-gaap	Stock Issued During Period Value Stock Dividend StockIssuedDuringPeriodValueStockDividend		USD
CY2016	us-gaap	Stock Issued During Period Value Stock Dividend StockIssuedDuringPeriodValueStockDividend	0	USD
CY2017	us-gaap	Stock Issued During Period Value Stock Dividend StockIssuedDuringPeriodValueStockDividend	0	USD
CY2017Q2	us-gaap	Stock Repurchase Program Authorized Amount1 StockRepurchaseProgramAuthorizedAmount1	3000000	USD
CY2007Q2	us-gaap	Stock Repurchase Program Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramNumberOfSharesAuthorizedToBeRepurchased	846127	shares
CY2017Q4	us-gaap	Stock Repurchase Program Remaining Number Of Shares Authorized To Be Repurchased StockRepurchaseProgramRemainingNumberOfSharesAuthorizedToBeRepurchased	732556	shares
CY2014Q4	us-gaap	Stockholders Equity StockholdersEquity	82826000	USD
CY2015Q4	us-gaap	Stockholders Equity StockholdersEquity	89635000	USD
CY2016Q4	us-gaap	Stockholders Equity StockholdersEquity	96654000	USD
CY2017Q4	us-gaap	Stockholders Equity StockholdersEquity	101352000	USD
CY2015Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	93073000	USD
CY2016Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	100968000	USD
CY2017Q4	us-gaap	Tier One Leverage Capital TierOneLeverageCapital	107043000	USD
CY2015Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	28747000	USD
CY2016Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	30956000	USD
CY2017Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy TierOneLeverageCapitalRequiredForCapitalAdequacy	32899000	USD
CY2015Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04
CY2016Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04
CY2017Q4	us-gaap	Tier One Leverage Capital Required For Capital Adequacy To Average Assets TierOneLeverageCapitalRequiredForCapitalAdequacyToAverageAssets	0.04
CY2015Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1295
CY2016Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1297
CY2017Q4	us-gaap	Tier One Leverage Capital To Average Assets TierOneLeverageCapitalToAverageAssets	0.1301
CY2015Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	93073000	USD
CY2016Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	100968000	USD
CY2017Q4	us-gaap	Tier One Risk Based Capital TierOneRiskBasedCapital	107043000	USD
CY2015Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	36269000	USD
CY2016Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	37840000	USD
CY2017Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy TierOneRiskBasedCapitalRequiredForCapitalAdequacy	39420000	USD
CY2015Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06
CY2016Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06
CY2017Q4	us-gaap	Tier One Risk Based Capital Required For Capital Adequacy To Risk Weighted Assets TierOneRiskBasedCapitalRequiredForCapitalAdequacyToRiskWeightedAssets	0.06
CY2015Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1540
CY2016Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1601
CY2017Q4	us-gaap	Tier One Risk Based Capital To Risk Weighted Assets TierOneRiskBasedCapitalToRiskWeightedAssets	0.1629
CY2017Q4	us-gaap	Time Deposit Maturities After Year Five TimeDepositMaturitiesAfterYearFive	0	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Five TimeDepositMaturitiesYearFive	1422000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Four TimeDepositMaturitiesYearFour	508000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year One TimeDepositMaturitiesYearOne	48704000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Three TimeDepositMaturitiesYearThree	738000	USD
CY2017Q4	us-gaap	Time Deposit Maturities Year Two TimeDepositMaturitiesYearTwo	13460000	USD
CY2017Q4	us-gaap	Time Deposits TimeDeposits	64832000	USD
CY2016Q4	us-gaap	Trading Securities TradingSecurities	0	USD
CY2017Q4	us-gaap	Trading Securities TradingSecurities	0	USD
CY2015	us-gaap	Weighted Average Number Diluted Shares Outstanding Adjustment WeightedAverageNumberDilutedSharesOutstandingAdjustment	2234	shares
CY2015	us-gaap	Weighted Average Number Of Diluted Shares Outstanding WeightedAverageNumberOfDilutedSharesOutstanding	16882797	shares
CY2015	us-gaap	Weighted Average Number Of Shares Outstanding Basic WeightedAverageNumberOfSharesOutstandingBasic	16880563	shares
CY2017	us-gaap	Prior Period Reclassification Adjustment Description PriorPeriodReclassificationAdjustmentDescription	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;">Reclassifications</font><font style="font-family:inherit;font-size:10pt;"> - Certain reclassifications have been made to prior year financial statements to conform to the classifications used in </font><font style="font-family:inherit;font-size:10pt;">2017</font><font style="font-family:inherit;font-size:10pt;">. None of the reclassifications had an impact on equity or net income.</font></div></div>
CY2017	us-gaap	Use Of Estimates UseOfEstimates	<div style="font-family:Times New Roman;font-size:10pt;"><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;font-style:italic;font-weight:bold;">Use of Estimates in the Preparation of Financial Statements</font><font style="font-family:inherit;font-size:10pt;"> - The preparation of financial statements in conformity with accounting principles generally accepted in the United States of America requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosure of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenue and expenses during the reporting period.  Actual results could differ from those estimates.</font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;"> </font></div><div style="line-height:120%;text-align:left;font-size:10pt;"><font style="font-family:inherit;font-size:10pt;">Material estimates that are particularly susceptible to significant change, relate to the determination of the allowance for loan losses, determination of goodwill, fair value of junior subordinated debt and certain collateralized mortgage obligations, and the valuation of real estate acquired in connection with foreclosures or in satisfaction of loans.</font></div></div>

Files In Submission

Name	View Source	Status
0001137547-18-000005-index-headers.html	Edgar Link	pending
0001137547-18-000005-index.html	Edgar Link	pending
0001137547-18-000005.txt	Edgar Link	pending
0001137547-18-000005-xbrl.zip	Edgar Link	pending
a12311710kex1010.htm	Edgar Link	pending
a12311710kex1011.htm	Edgar Link	pending
a12311710kex102.htm	Edgar Link	pending
a12311710kex104.htm	Edgar Link	pending
a12311710kex107.htm	Edgar Link	pending
a12311710kex108.htm	Edgar Link	pending
a12311710kex109.htm	Edgar Link	pending
FilingSummary.xml	Edgar Link	unprocessable
Financial_Report.xlsx	Edgar Link	pending
R1.htm	Edgar Link	pending
R10.htm	Edgar Link	pending
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R9.htm	Edgar Link	pending
report.css	Edgar Link	pending
Show.js	Edgar Link	pending
ubfo-12312017x10k.htm	Edgar Link	pending
ubfo-20171231.xml	Edgar Link	completed
ubfo-20171231.xsd	Edgar Link	pending
ubfo-20171231exhibit311.htm	Edgar Link	pending
ubfo-20171231exhibit312.htm	Edgar Link	pending
ubfo-20171231exhibit321.htm	Edgar Link	pending
ubfo-20171231exhibit322.htm	Edgar Link	pending
ubfo-20171231_cal.xml	Edgar Link	unprocessable
ubfo-20171231_def.xml	Edgar Link	unprocessable
ubfo-20171231_lab.xml	Edgar Link	unprocessable
ubfo-20171231_pre.xml	Edgar Link	unprocessable
ubfo123117ex21.htm	Edgar Link	pending
ubfo123117ex231.htm	Edgar Link	pending

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UNITED SECURITY BANCSHARES Stock $ubfo

2016 Q4 Form 10-K Financial Statement

#000113754718000005 Filed on March 02, 2018

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$UBFO UNITED SECURITY BANCSHARES Stock $ubfo

2016 Q4 Form 10-K Financial Statement

#000113754718000005 Filed on March 02, 2018

Income Statement

Balance Sheet

Cashflow Statement

Facts In Submission

Files In Submission

$UBFO
UNITED SECURITY BANCSHARES Stock $ubfo