Amortization of low income housing investments.

No definition available.

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Number of lines of credit provided to subsidiary.

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Percentage of personal guarantee against losses by majority owner of subsidiary.

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No definition available.

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Remaining Commitment to Invest in Low Income Housing Partnership

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No definition available.

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The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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The amount of net income (loss) reported by an equity method investment of the entity.

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Bank deposits belonging to an acquired bank that can be counted on as a stable source of lending funds. These deposits have the following attributes: predictable costs and low sensitivity to interest rates. This intangible asset is usually amortized over its estimated useful life.

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Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Amount before amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

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Useful life of finite-lived intangible assets, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Carrying amount (original costs adjusted for previously recognized amortization and impairment) as of the balance sheet date for the rights acquired through registration of a trade name to gain or protect exclusive use thereof for a projected indefinite period of benefit.

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- Definition

The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

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- Definition

The aggregate cash outflow used to purchase all loans that are held with the intention to resell in the near future.

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Goodwill, Intangible and Other Assets - Narrative (Details) (USD $)	12 Months Ended			1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Oct. 31, 2007	Dec. 31, 2005	Dec. 02, 2014
Finite-Lived Intangible Assets [Line Items]
Accumulated amortization for intangible assets	$ 6,200,000	$ 5,900,000
Goodwill recorded	22,334,000us-gaap_Goodwill	7,525,000us-gaap_Goodwill
Trade name intangible	950,000us-gaap_IndefiniteLivedTradeNames	0us-gaap_IndefiniteLivedTradeNames
Intangible asset amortization expense	289,000us-gaap_AmortizationOfIntangibleAssets	228,000us-gaap_AmortizationOfIntangibleAssets	252,000us-gaap_AmortizationOfIntangibleAssets
Payments to Purchase Loans Held-for-sale	(132,013,000)	(156,521,000)	(242,535,000)
Amortization expense	1,300,000	969,000	921,000
Commitments to invest remaining to be funded	17,271,000
Northrim Benefits Group
Finite-Lived Intangible Assets [Line Items]
Equity interest percentage					40.10%
Alaska First
Finite-Lived Intangible Assets [Line Items]
Estimated useful life, years	10 years
Goodwill recorded				1,800,000
CDI recorded				1,300,000
Alaska Pacific Bank
Finite-Lived Intangible Assets [Line Items]
CDI recorded				623,000
RML
Finite-Lived Intangible Assets [Line Items]
Goodwill recorded						14,800,000
Trade name intangible						950,000
RML
Finite-Lived Intangible Assets [Line Items]
Equity interest percentage	24.00%
Line of credit committed amount	25,000,000
Line of credit outstanding balance	40,167,000	21,949,000
Number of lines of credit provided to subsidiary	2
RML \| Northrim Bancorp, Inc.
Finite-Lived Intangible Assets [Line Items]
Line of credit outstanding balance	16,000,000
ECIA
Finite-Lived Intangible Assets [Line Items]
Equity interest percentage		43.00%
Pacific Wealth Advisors, LLC
Finite-Lived Intangible Assets [Line Items]
Equity interest percentage	23.00%
ECCM
Finite-Lived Intangible Assets [Line Items]
Equity interest percentage	43.00%
Equity Method Investment, Summarized Financial Information, Net Income (Loss)	239,000	100,000
Line of credit committed amount	500,000
Line of credit outstanding balance	100,000
Percentage of personal guarantee against losses by majority owner of subsidiary	50.00%
Customer Relationships \| Northrim Benefits Group
Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Gross					1,100,000
Estimated useful life, years	10 years
Accumulated amortization for intangible assets	943,000	829,000	714,000
Core Deposits \| Alaska First
Finite-Lived Intangible Assets [Line Items]
Estimated useful life, years				10 years
Accumulated amortization for intangible assets	1,100,000	983,000	846,000
Core Deposits \| Alaska Pacific Bank
Finite-Lived Intangible Assets [Line Items]
Estimated useful life, years				10 years
Accumulated amortization for intangible assets	$ 85,000