XML 45 R34.htm IDEA: XBRL DOCUMENT v3.7.0.1

Loans, Part V (Details) $ in Thousands	6 Months Ended
	Jun. 30, 2017 USD ($) rating	Dec. 31, 2016 USD ($)
Financing Receivable, Recorded Investment [Line Items]
Number of risk rating approaches | rating	2
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	$ 129,224	$ 132,936
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	129,224	132,936
Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	438,016	436,823
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	438,016	436,823
Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	52,471	49,005
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	52,471	49,005
Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	202,364	200,213
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	202,364	200,213
Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	124,749	130,687
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	124,749	130,687
Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	58,432	56,918
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	58,432	56,918
Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	79,319	87,388
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	79,319	87,388
Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	572	599
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	572	599
Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	49,333	44,949
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	49,333	44,949
Grades 1 and 2 | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	3,360	415
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	3,360	415
Grades 1 and 2 | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	324	340
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	324	340
Grades 1 and 2 | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	2,986	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	2,986	0
Grades 1 and 2 | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grades 1 and 2 | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	50	75
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	50	75
Grade 3 | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	14,950	10,590
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	14,950	10,590
Grade 3 | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	9,289	4,823
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	9,289	4,823
Grade 3 | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	5,661	5,767
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	5,661	5,767
Grade 3 | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grade 3 | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grades 4 and 5 – pass | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	379,993	395,455
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	379,993	395,455
Grades 4 and 5 – pass | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	35,867	34,921
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	35,867	34,921
Grades 4 and 5 – pass | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	184,036	192,699
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	184,036	192,699
Grades 4 and 5 – pass | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	104,232	110,992
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	104,232	110,992
Grades 4 and 5 – pass | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	55,858	56,843
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	55,858	56,843
Grade 6 – special mention | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	15,314	5,965
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	15,314	5,965
Grade 6 – special mention | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	3,150	4,416
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	3,150	4,416
Grade 6 – special mention | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	9,208	621
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	9,208	621
Grade 6 – special mention | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	1,932	928
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	1,932	928
Grade 6 – special mention | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	1,024	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	1,024	0
Grade 7 – substandard | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	24,399	24,398
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	24,399	24,398
Grade 7 – substandard | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	3,841	4,505
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	3,841	4,505
Grade 7 – substandard | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	473	1,126
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	473	1,126
Grade 7 – substandard | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	18,585	18,767
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	18,585	18,767
Grade 7 – substandard | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	1,500	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	1,500	0
Grade 8 – doubtful | Commercial Risk, Construction, and Other Non-Consumer Loans [Member]
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grade 8 – doubtful | Commercial and Industrial
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grade 8 – doubtful | Commercial Real Estate
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grade 8 – doubtful | Real Estate Construction and Development Loans
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Grade 8 – doubtful | Agricultural
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Not graded
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	109,923	112,383
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	109,923	112,383
Not graded | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	62,785	69,955
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	62,785	69,955
Not graded | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	547	573
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	547	573
Not graded | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	46,591	41,855
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	46,591	41,855
Pass
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	18,666	17,815
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	18,666	17,815
Pass | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	15,906	15,669
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	15,906	15,669
Pass | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	25	26
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	25	26
Pass | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	2,735	2,120
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	2,735	2,120
Special Mention
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Special Mention | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Special Mention | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Special Mention | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Substandard
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	635	1,773
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	635	1,773
Substandard | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	628	1,764
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	628	1,764
Substandard | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Substandard | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	7	9
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	7	9
Doubtful
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	965
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	965
Doubtful | Residential Mortgages
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Doubtful | Home Improvement and Home Equity
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	0
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	0	0
Doubtful | Installment
Credit Risk Ratings For Commercial, Construction, And Other Non-Consumer Related Loans [Abstract]
Total	0	965
Credit Risk Ratings For Consumer Related Loans And Other Homogenous Loans [Abstract]
Total	$ 0	$ 965
Minimum | Grades 4 and 5 – pass
Financing Receivable, Recorded Investment [Line Items]
Notes receivable, period of loss recognition	3 years
Maximum | Grades 4 and 5 – pass
Financing Receivable, Recorded Investment [Line Items]
Notes receivable, period of loss recognition	4 years

X

- Definition

-- None. No documentation exists for this element. --

+ References

No definition available.

+ Details

Name:	ubfo_CreditRiskRatingsForCommercialConstructionAndOtherNonConsumerRelatedLoansAbstract
Namespace Prefix:	ubfo_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

-- None. No documentation exists for this element. --

+ References

No definition available.

+ Details

Name:	ubfo_CreditRiskRatingsForConsumerRelatedLoansAndOtherHomogenousLoansAbstract
Namespace Prefix:	ubfo_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Period for recognition of loss in the event of default in the payment of notes receivable.

+ References

No definition available.

+ Details

Name:	ubfo_NotesReceivablePeriodOfLossRecognition
Namespace Prefix:	ubfo_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Number of risk rating approaches evaluated to assign risk ratings to loan receivable.

+ References

No definition available.

+ Details

Name:	ubfo_NumberOfRiskRatingApproaches
Namespace Prefix:	ubfo_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

+ Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Net amount of the investment in a contractual right to receive money on demand or on fixed or determinable dates that is recognized as an asset in the creditor's statement of financial position. Examples include, but are not limited to, credit card receivables, notes receivable and receivables relating to lessor's rights to payments from leases other than operating leases that have been recorded as assets. Excludes trade accounts receivable with contractual maturity of one year or less and arose from the sale of goods or services.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.3)
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

+ Details

Name:	us-gaap_NotesReceivableNet
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ubfo_CommercialRiskConstructionAndOtherNonConsumerLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ubfo_CommercialAndIndustrialMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ubfo_CommercialRealEstateTermLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ConstructionLoansMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ubfo_AgriculturalMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=us-gaap_ResidentialMortgageMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ubfo_HomeImprovementMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=ubfo_InstallmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=ubfo_Grades1And2Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=ubfo_Grade3Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=ubfo_Grade4And5PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=ubfo_Grade6SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=ubfo_Grade7SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=ubfo_Grade8DoubtfulMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=ubfo_NotGradedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_InternalCreditAssessmentAxis=us-gaap_DoubtfulMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	us-gaap_RangeAxis=us-gaap_MaximumMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: