XML 35 R89.htm IDEA: XBRL DOCUMENT v2.4.1.9
Allowance For Loan Losses - Recorded Investment Segregated By Amounts Individually Or Collectively In Allowance For Loan Losses (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total Financing Receivables $ 929,055us-gaap_NotesReceivableNet $ 774,037us-gaap_NotesReceivableNet
Balance, end of period: Individually evaluated for impairment 11,297us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment 8,751us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
Balance, end of period: Collectively evaluated for impairment 917,758us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment 765,286us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
Commercial    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total Financing Receivables 306,543us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
300,338us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Balance, end of period: Individually evaluated for impairment 3,976us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
838us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Balance, end of period: Collectively evaluated for impairment 302,567us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
299,500us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= us-gaap_CommercialPortfolioSegmentMember
Real Estate Construction One-To- Four Family    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total Financing Receivables 34,842us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOneToFourFamilyPortfolioSegmentMember
30,161us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOneToFourFamilyPortfolioSegmentMember
Balance, end of period: Individually evaluated for impairment 191us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOneToFourFamilyPortfolioSegmentMember
353us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOneToFourFamilyPortfolioSegmentMember
Balance, end of period: Collectively evaluated for impairment 34,651us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOneToFourFamilyPortfolioSegmentMember
29,808us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOneToFourFamilyPortfolioSegmentMember
Real Estate Construction Other    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total Financing Receivables 91,195us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOtherPortfolioSegmentMember
32,599us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOtherPortfolioSegmentMember
Balance, end of period: Individually evaluated for impairment 772us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOtherPortfolioSegmentMember
2,520us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOtherPortfolioSegmentMember
Balance, end of period: Collectively evaluated for impairment 90,423us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOtherPortfolioSegmentMember
30,079us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateConstructionOtherPortfolioSegmentMember
Real Estate Term Owner Occupied    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total Financing Receivables 109,472us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOwnerOccupiedPortfolioSegmentMember
91,098us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOwnerOccupiedPortfolioSegmentMember
Balance, end of period: Individually evaluated for impairment 1,332us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOwnerOccupiedPortfolioSegmentMember
1,668us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOwnerOccupiedPortfolioSegmentMember
Balance, end of period: Collectively evaluated for impairment 108,140us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOwnerOccupiedPortfolioSegmentMember
89,430us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOwnerOccupiedPortfolioSegmentMember
Real Estate Term Non-Owner Occupied    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total Financing Receivables 286,616us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermNonOwnerOccupiedPortfolioSegmentMember
255,324us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermNonOwnerOccupiedPortfolioSegmentMember
Balance, end of period: Individually evaluated for impairment 4,346us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermNonOwnerOccupiedPortfolioSegmentMember
1,741us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermNonOwnerOccupiedPortfolioSegmentMember
Balance, end of period: Collectively evaluated for impairment 282,270us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermNonOwnerOccupiedPortfolioSegmentMember
253,583us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermNonOwnerOccupiedPortfolioSegmentMember
Real Estate Term Other    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total Financing Receivables 36,894us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOtherPortfolioSegmentMember
29,976us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOtherPortfolioSegmentMember
Balance, end of period: Individually evaluated for impairment 150us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOtherPortfolioSegmentMember
1,292us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOtherPortfolioSegmentMember
Balance, end of period: Collectively evaluated for impairment 36,744us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOtherPortfolioSegmentMember
28,684us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_RealEstateTermOtherPortfolioSegmentMember
Consumer Secured By 1st Deed Of Trust    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total Financing Receivables 32,000us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerSecuredByFirstDeedOfTrustPortfolioSegmentMember
16,483us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerSecuredByFirstDeedOfTrustPortfolioSegmentMember
Balance, end of period: Individually evaluated for impairment 530us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerSecuredByFirstDeedOfTrustPortfolioSegmentMember
274us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerSecuredByFirstDeedOfTrustPortfolioSegmentMember
Balance, end of period: Collectively evaluated for impairment 31,470us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerSecuredByFirstDeedOfTrustPortfolioSegmentMember
16,209us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerSecuredByFirstDeedOfTrustPortfolioSegmentMember
Consumer Other    
Financing Receivable, Allowance for Credit Losses [Line Items]    
Total Financing Receivables 31,493us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerOtherPortfolioSegmentMember
18,058us-gaap_NotesReceivableNet
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerOtherPortfolioSegmentMember
Balance, end of period: Individually evaluated for impairment 0us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerOtherPortfolioSegmentMember
65us-gaap_FinancingReceivableIndividuallyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerOtherPortfolioSegmentMember
Balance, end of period: Collectively evaluated for impairment $ 31,493us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerOtherPortfolioSegmentMember
$ 17,993us-gaap_FinancingReceivableCollectivelyEvaluatedForImpairment
/ us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis
= nrim_ConsumerOtherPortfolioSegmentMember