Northrim BanCorp (NRIM) 10-Q 8 May 15 2015 Q1 Quarterly report Financial data

Document_And_Entity_Informatio

Document And Entity Information	3 Months Ended
	Mar. 31, 2015	8-May-15
Document And Entity Information [Abstract]
Document Type	10-Q
Document Period End Date	31-Mar-15
Amendment Flag	FALSE
Entity Registrant Name	NORTHRIM BANCORP INC
Entity Central Index Key	1163370
Current Fiscal Year End Date	-19
Entity Filer Category	Accelerated Filer
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q1
Entity Common Stock, Shares Outstanding		6,854,189
Trading Symbol	NRIM

Consolidated_Balance_Sheets

Consolidated Balance Sheets (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
ASSETS
Cash and due from banks	$32,957	$36,036
Interest bearing deposits in other banks	13,115	36,020
Investment securities available for sale	254,772	281,730
Investment securities held to maturity	2,199	2,201
Total portfolio investments	256,971	283,931
Investment in Federal Home Loan Bank stock	3,367	3,404
Loans held for sale	61,873	43,866
Loans	960,564	924,504
Allowance for loan losses	-16,947	-16,723
Net loans	943,617	907,781
Purchased receivables, net	15,332	15,254
Accrued interest receivable	3,784	3,373
Other real estate owned, net	4,209	4,607
Premises and equipment, net	36,449	35,643
Goodwill	22,334	22,334
Other intangible assets, net	1,628	1,701
Other assets	52,348	55,399
Total assets	1,447,984	1,449,349
LIABILITIES
Demand	410,464	403,523
Interest-bearing demand	179,124	185,114
Savings	127,708	122,588
Alaska CDs	99,120	99,736
Money market	227,345	226,574
Certificates of deposit less than $100,000	57,938	58,249
Certificates of deposit greater than $100,000	89,314	83,963
Total deposits	1,191,013	1,179,747
Securities sold under repurchase agreements	17,820	19,843
Borrowings	22,569	26,304
Junior subordinated debentures	18,558	18,558
Other liabilities	30,640	40,456
Total liabilities	1,280,600	1,284,908
SHAREHOLDERS' EQUITY
Preferred stock, $1 par value, 2,500,000 shares authorized, none issued or outstanding	0	0
Common stock, $1 par value, 10,000,000 shares authorized, 6,854,189 and 6,854,189 shares issued and outstanding at March 31, 2015 and December 31, 2014, respectively	6,854	6,854
Additional paid-in capital	61,847	61,729
Retained earnings	97,809	95,493
Accumulated other comprehensive income	747	247
Total Northrim BanCorp shareholders' equity	167,257	164,323
Noncontrolling interest	127	118
Total shareholders' equity	167,384	164,441
Total liabilities and shareholders' equity	$1,447,984	$1,449,349

Consolidated_Balance_Sheets_Pa

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Statement of Financial Position [Abstract]
Preferred stock, par value	$1	$1
Preferred stock, shares authorized	2,500,000	2,500,000
Preferred stock, issued	0	0
Preferred stock, outstanding	0	0
Common stock, par value	$1	$1
Common stock, shares authorized	10,000,000	10,000,000
Common stock, shares issued	6,854,189	6,854,189
Common stock, shares outstanding	6,854,189	6,854,189

Consolidated_Statements_Of_Inc

Consolidated Statements Of Income (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Interest Income
Interest and fees on loans	$13,467	$10,871
Interest on investment securities available for sale	885	730
Interest on investment securities held to maturity	23	23
Interest on deposits in other banks	11	49
Total Interest Income	14,386	11,673
Interest Expense
Interest expense on deposits, borrowings and junior subordinated debentures	754	440
Net Interest Income	13,632	11,233
Provision for loan losses	326	0
Net Interest Income After Provision for Loan Losses	13,306	11,233
Other Operating Income
Mortgage banking income	7,283	0
Employee benefit plan income	777	876
Electronic banking income	622	500
Purchased receivable income	589	481
Service charges on deposit accounts	490	476
Gain on sale of securities, net	114	97
Equity in earnings from RML	0	-131
Other income	660	435
Total Other Operating Income	10,535	2,734
Other Operating Expense
Salaries and other personnel expense	10,550	5,920
Occupancy expense	1,604	877
Change in fair value, RML earn-out liability	1,502	0
Professional and outside services	751	322
Marketing expense	617	614
Equipment expense	434	298
Insurance expense	324	185
Software expense	312	260
OREO (income) expense, net rental income and gains on sale	297	-238
Internet banking expense	220	200
Intangible asset amortization expense	73	52
Merger and acquisition expense	0	480
Reserve for (recovery from) purchased receivables	-54	-37
Other operating expense	1,831	1,034
Total Other Operating Expense	18,461	9,967
Income Before Provision for Income Taxes	5,380	4,000
Provision for income taxes	1,747	1,297
Net Income	3,633	2,703
Less: Net income attributable to the noncontrolling interest	72	45
Net Income Attributable to Northrim BanCorp	$3,561	$2,658
Earnings Per Share, Basic (USD per share)	$0.52	$0.41
Earnings Per Share, Diluted (USD per share)	$0.51	$0.40
Weighted Average Shares Outstanding, Basic (shares)	6,854,189	6,537,652
Weighted Average Shares Outstanding, Diluted (shares)	6,930,873	6,629,330

Consolidated_Statements_Of_Com

Consolidated Statements Of Comprehensive Income (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Net income	$3,633	$2,703
Other comprehensive income, net of tax:
Unrealized gains arising during the period	888	95
Reclassification of net gains included in net income (net of tax expense $47 and $40 for the first three months of 2015 and 2014, respectively)	-67	-57
Income tax expense related to unrealized gains	-321	-39
Other comprehensive income (loss)	500	-1
Comprehensive income	4,133	2,702
Less: comprehensive income attributable to the noncontrolling interest	72	45
Comprehensive income attributable to Northrim BanCorp	$4,061	$2,657

Consolidated_Statements_Of_Com1

Consolidated Statements Of Comprehensive Income (Parenthetical) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Statement of Comprehensive Income [Abstract]
Reclassification of Net Gains	$47	$40

Consolidated_Statements_Of_Cha

Consolidated Statements Of Changes In Shareholders' Equity (USD $)	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Non-controlling Interest
In Thousands, except Share data, unless otherwise specified
Beginning balance, value at Dec. 31, 2013	$144,318	$6,538	$54,089	$82,855	$669	$167
Beginning balance, shares at Dec. 31, 2013		6,538,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Acquisition adjustment, shares		290,000
Acquisition adjustment, value	7,446	290	7,156
Cash dividend declared	-4,770			-4,770
Stock based compensation expense	360		360
Exercise of stock options, shares		26,000
Exercise of stock options	54	26	28
Excess tax benefits from stock based payment arrangements	96		96
Distributions to noncontrolling interest	-508					-508
Other comprehensive income, net of tax	-422				-422
Net income attributable to the noncontrolling interest	459					459
Net income attributable to Northrim BanCorp	17,408			17,408
Ending balance, value at Dec. 31, 2014	164,441	6,854	61,729	95,493	247	118
Ending balance, shares at Dec. 31, 2014	6,854,189	6,854,000
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Cash dividend declared	-1,245			-1,245
Stock based compensation expense	118		118
Distributions to noncontrolling interest	-63					-63
Other comprehensive income, net of tax	500				500
Net income attributable to the noncontrolling interest	72					72
Net income attributable to Northrim BanCorp	3,561			3,561
Ending balance, value at Mar. 31, 2015	$167,384	$6,854	$61,847	$97,809	$747	$127
Ending balance, shares at Mar. 31, 2015	6,854,189	6,854,000

Consolidated_Statement_Of_Cash

Consolidated Statement Of Cash Flows (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Operating Activities:
Net income	$3,633	$2,703
Adjustments to Reconcile Net Income to Net Cash Provided by Operating Activities:
Gain on sale of securities, net	-114	-97
Depreciation and amortization of premises and equipment	562	420
Amortization of software	46	45
Intangible asset amortization	73	52
Amortization of investment security premium, net of discount accretion	-61	-50
Deferred tax liability	143	155
Stock-based compensation	118	107
Deferral of loan fees and costs, net	-89	-210
Provision for loan losses	326	0
Reserve for (recovery from) purchased receivables	-54	-37
Purchases of loans held for sale	0	-30,482
Proceeds from the sale of loans held for sale	158,365	27,455
Origination of loans held for sale	-176,372	0
Gain on sale of other real estate owned	0	-294
Impairment on other real estate owned	268	0
Equity in undistributed earnings from mortgage affiliate	0	148
Net changes in assets and liabilities:
(Increase) in accrued interest receivable	-411	-205
Decrease (increase) in other assets	2,643	-4,899
Decrease in other liabilities	-9,882	-1,501
Net Cash (Used) by Operating Activities	-20,806	-6,690
Investing Activities:
Purchases of investment securities available for sale	-16,792	-39,125
Proceeds from sales/maturities of securities available for sale	44,701	55,742
Proceeds from redemption of FHLB stock	37	78
(Increase) decrease in purchased receivables, net	-24	6,162
(Increase) decrease in loans, net	-36,254	5,774
Proceeds from sale of other real estate owned	311	1,294
Decrease in loan to Elliott Cove, net	0	49
Purchases of premises and equipment	-1,368	-794
Net Cash (Used) Provided by Investing Activities	-9,389	29,180
Financing Activities:
Increase (decrease) in deposits	11,266	-5,966
(Decrease) in securities sold under repurchase agreements	-2,023	-1,257
(Decrease) in borrowings	-3,735	-4,330
Distributions to noncontrolling interest	-63	-75
Cash dividends paid	-1,234	-1,112
Net Cash Provided (Used) by Financing Activities	4,211	-12,740
Net Change in Cash and Cash Equivalents	-25,984	9,750
Cash and Cash Equivalents at Beginning of Period	68,556	85,591
Cash and Cash Equivalents at End of Period	42,572	95,341
Supplemental Information:
Income taxes paid	786	2
Interest paid	720	442
Noncash commitments to invest in Low Income Housing Tax Credit Partnerships	55	0
Transfer of loans to other real estate owned	181	1,137
Transfer of premises to other real estate owned	0	904
Cash dividends declared but not paid	$11	$10

Basis_of_Presentation

Basis of Presentation	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Basis of Presentation	Basis of Presentation
	The accompanying unaudited consolidated financial statements have been prepared by Northrim BanCorp, Inc. (the “Company”) in accordance with accounting principles generally accepted in the United States of America (“GAAP”) and with instructions to Form 10-Q under the Securities Exchange Act of 1934, as amended. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. The Company owns a 100% interest in Residential Mortgage Holding Company, LLC ("RML"), the parent company of Residential Mortgage, LLC ("Residential Mortgage") and a 50.1% interest in Northrim Benefits Group, LLC ("NBG") and consolidates their balance sheets and income statements into its financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. Certain reclassifications have been made to prior year amounts to maintain consistency with the current year with no impact on net income or total shareholders’ equity. The Company determined that it operates in two primary operating segments: Community Banking and Home Mortgage Lending. Prior to December 2014, the Company operated in a single segment: Community Banking. The Company has evaluated events and transactions through May 8, 2015 for potential recognition or disclosure. Operating results for the interim period ended March 31, 2015, are not necessarily indicative of the results anticipated for the year ending December 31, 2015. These consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2014.

Significant_Accounting_Policie

Significant Accounting Policies and Recent Accounting Pronouncements	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Significant Accounting Policies and Recent Accounting Pronouncements	Significant Accounting Policies and Recent Accounting Pronouncements
	The Company’s significant accounting policies are discussed in Note 1 to the audited consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2014.
	In January 2014, the Financial Accounting Standards Board ("FASB") issued ASU No. 2014-01, Accounting for Investments in Qualified Affordable Housing Projects. ASU 2014-01 permits an entity to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The amendments are effective for annual and interim reporting periods beginning on or after December 15, 2014 and should be applied prospectively. The Company adopted ASU 2014-01 in its consolidated financial statements as of January 1, 2015. As a result, amortization expense related to the Company's investments in low income housing tax credit partnerships has been included in the line item entitled "Provision for income taxes" in the Consolidated Statements of Income for all periods presented.
	In February 2015, the Financial Accounting Standards Board (“FASB”) issued ASU 2015-02, Amendments to the Consolidation Analysis (“ASU 2015-02”). The amendments to the Codification in ASU 2015-02 affect reporting entities that are required to evaluate whether they should consolidate certain legal entities. The amendments in this update affect the following areas: 1) the effect of related parties on the primary beneficiary determination, 2) evaluating fees paid to a decision maker or a service provider as a variable interest, 3) the effect of fee arrangements on the primary beneficiary determination, and 4) certain investment funds. This ASU is effective for the Company’s financial statements for annual and interim periods beginning on or after December 15, 2015, and must be applied prospectively. The Company does not believe that the adoption of this standard will have a material impact on the Company’s consolidated financial position or results of operations.
	In April 2015, the Financial Accounting Standards Board (“FASB”) issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs (“ASU 2015-03”). The amendments to the Codification in ASU 2015-03 identify, evaluate, and improve areas of generally accepted accounting principles (GAAP) for which cost and complexity can be reduced while maintaining or improving the usefulness of the information provided to users of financial statements. To simplify presentation of debt issuance costs, the amendments in this Update require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this Update. This ASU is effective for the Company’s financial statements for annual and interim periods beginning on or after December 15, 2015, and must be applied prospectively. The Company does not believe that the adoption of this standard will have a material impact on the Company’s consolidated financial position or results of operations.

Business_Combinations

Business Combinations	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Business Combinations	Business Combinations
	Alaska Pacific Bancshares, Inc.
	On April 1, 2014, the Company completed the acquisition of 100% of the outstanding shares of Alaska Pacific Bancshares, Inc. ("Alaska Pacific") for a total purchase price of $13.9 million, which was comprised of the issuance of 290,212 shares of the Company’s common stock (at a volume weighted average closing price of $25.66 per share) and $6.4 million in cash. The assets acquired and liabilities assumed have been accounted for under the acquisition method of accounting and were recorded at their estimated fair values as of the April 1, 2014 acquisition date. Estimated fair values recorded in the transaction are subject to change for up to one year after the closing date of the acquisition. The primary reason for the acquisition was to expand the Company's geographic footprint in Alaska.
	The application of the acquisition method of accounting resulted in the recognition of a bargain purchase gain of $170,000 and a core deposit intangible of $623,000, or 0.5% of core deposits. The bargain purchase gain represents the excess of the estimated fair value of the net assets acquired in excess of the purchase price and is included in Other Income in the Consolidated Statements of Income in this Form 10-Q. This acquisition resulted in a bargain purchase gain primarily due to the inclusion of certain adjustments to the purchase price for potential risks identified by the Company during the due diligence and price negotiation stages of the acquisition that were concluded in October of 2013. The Company has concluded that the potential risks identified at that time do not represent a liability to the Company and, accordingly, they have not been allocated any value in the application of the acquisition method of accounting.
	A summary of the net assets acquired and the estimated fair value adjustments of Alaska Pacific are presented below:
			Alaska Pacific
	(In Thousands)		April 1, 2014
	Cost basis net assets			$14,733
	Cash payment made		(6,423		)
	Common stock issued		(7,446		)
	Fair value adjustments:
	Net loans		(1,137		)
	Premises and equipment		547
	Other intangible assets		623
	Mortgage servicing rights		(119		)
	Deposits		(844		)
	Other		236
	Bargain purchase gain			$170
	A summary of assets acquired and liabilities assumed at their estimated fair values are presented below:
			Alaska Pacific
	(In Thousands)		April 1, 2014
	Assets Acquired:
	Cash and equivalents			$12,956
	Investment securities		7,240
	Loans		138,432
	Premises and equipment		3,436
	Other intangibles		623
	Mortgage servicing rights		1,170
	Other real estate owned		1,709
	Other assets		1,645
	Total assets acquired			$167,211
	Liabilities Assumed:
	Deposits			$151,438
	Other liabilities		1,734
	Total liabilities assumed			$153,172
	Alaska Pacific purchased loans not subject to the requirements of FASB ASC  310-30 Loans and Debt Securities Acquired with Deteriorated Credit Quality ("ASC 310-30") are presented below at acquisition:
	(In Thousands)		April 1, 2014
	Contractually required principal payments			$133,921
	Purchase adjustment for credit, interest rate, and liquidity		612
	Fair value of purchased non-credit impaired loans			$134,533
	Alaska Pacific purchased loans subject to the requirements of FASB ASC  310-30 Loans and Debt Securities Acquired with Deteriorated Credit Quality. The Company identified eighteen purchased credit impaired loans as of April 1, 2014. This group of loans consists primarily of commercial and commercial real estate loans, and unlike a pool of consumer mortgages, it is not practicable for the Company to analyze the accretable yield of these loans. As such, the Company has elected the cost recovery method of income recognition for these loans, and thus no accretable difference has been identified for these loans.
	Purchased credit impaired loans at acquisition are presented below:
	(In Thousands)		April 1, 2014
	Contractually required principal payments			$7,553
	Nonaccretable difference		(3,654		)
	Fair value of purchased credit impaired loans			$3,899
	The acquisition of Alaska Pacific is not considered significant to the Company’s financial statements. The operations of Alaska Pacific are included in our operating results from April 1, 2014, and we estimate that these operations added revenue of $1.9 million, non-interest expense of $1.5 million, and net income of $393,000, before taxes, for the quarter ended March 31, 2015. Alaska Pacific’s results of operations prior to the acquisition are not included in our operating results. Additionally, merger-related costs of $480,000 for the quarter ended March 31, 2014 were incurred and expensed in connection with the acquisition of Alaska Pacific and recognized within the merger and acquisition expense on the Consolidated Statements of Income.
	The following table presents unaudited pro forma results of operations for the three month periods ended March 31, 2014 as if the acquisition of Alaska Pacific had occurred on January 1, 2014. The proforma results have been prepared for comparative purposes only and are not necessarily indicative of the results that would have been obtained had the acquisition actually occurred on January 1, 2014.
	(In Thousands, except earnings per share data)		Three Months Ended March 31, 2014
									Pro Forma				Pro Forma
			Company			Alaska Pacific1			Adjustments				Combined
	Net interest and other income			$13,967			$2,095			($10	)	2		$16,052
	Net income attributable to Northrim BanCorp, Inc.		2,658			(1,282		)	146			3	1,522
	Earnings Per Share, Basic			$0.41										$0.22
	Earnings Per Share, Diluted			$0.40										$0.22
	Weighted Average Shares Outstanding, Basic		6,537,652										6,827,864
	Weighted Average Shares Outstanding, Diluted		6,629,330										6,919,542
	1 Alaska Pacific represents results from January 1 to March 31 for 2014.
	2 Amount of amortization/ accretion of the fair value adjustments on loans and certificates of deposit.
	3 Amount of amortization/accretion of the fair value adjustments on loans and certificates of deposit, bargain purchase gain, amortization of cored deposit intangible, and the change in the provision for income taxes.
	Residential Mortgage Holding Company, LLC
	On December 1, 2014, the Company completed the acquisition of 76.5% of the equity interest in RML, the parent company of Residential Mortgage, in a cash transaction valued at $29.5 million, resulting in RML becoming an indirect wholly-owned subsidiary of the Company. The primary reason for the acquisition was to expand the Company's presence in the mortgage lending business in Alaska. The fair value of the Company's equity interest in RML immediately prior to the acquisition was $9.0 million. The Company recorded a $3.0 million gain in the fourth quarter of 2014 as a result of remeasuring the Company's equity interest in RML immediately prior to the acquisition, which was included in the Company's Consolidated Statements of Income in the line item entitled "Gain on purchase of mortgage affiliate". The Company utilized a market value approach to value its equity interest in RML which included analysis of current trading values and historical acquisition multiples of comparable mortgage companies. The consideration transferred or transferable to the former owners of RML and the assets acquired and liabilities assumed have been accounted for under the acquisition method of accounting and were recorded at their estimated fair values as of the December 1, 2014 acquisition date. Estimated fair values recorded in the transaction are subject to change for up to one year after the closing date of the acquisition. The application of the acquisition method of accounting resulted in the recognition of goodwill in the amount of $14.8 million and a trade name intangible of $950,000. RML holds a 30% equity interest in Homestate Mortgage LLC.
	The former owners of RML (the "sellers") will receive additional cash proceeds (the "earn-out" payments) based on the adjusted pretax earnings of RML for each of the twelve months periods ending November 30, 2015, 2016, 2017, 2018 and 2019. The Company recorded a $7.3 million liability as of December 1, 2014 as part of its purchase accounting for future earn-out payments. Per the purchase agreement, the earn-out payments are calculated as follows:
	First tier earn-out payment	Adjusted pretax earnings greater than $1,000,000 and less than or equal to $2,000,000	Payment will be calculated as product of amount of adjusted pretax earnings times 40%
Second tier earn-out payment	Adjusted pretax earnings greater than $2,000,000 and less than or equal to $3,000,000	The first tier earn-out payment, plus the product of amount of adjusted pretax earnings greater than $2,000,000 and less than $3,000,000 times 50%
Third tier earn-out payment	Adjusted pretax earnings greater than $3,000,000 and less than or equal to $4,000,000	The first tier plus the second tier earn-out payment, plus the product of amount of adjusted pretax earnings greater than $3,000,000 and less than $4,000,000 times 70%
Fourth tier earn- out payment	Adjusted pretax earnings greater than $4,000,000 and less than or equal to $6,000,000	The first, second and third tier earn-out payment, plus the product of amount of adjusted pretax earnings greater than $4,000,000 and less than $6,000,000 times 85%
Fifth tier earn-out payment	Adjusted pretax earnings greater than $6,000,000	The first, second, third and fourth tier earn-out payment, plus the product of amount of adjusted pretax earnings greater than $6,000,000 times 55%
The purchase agreement provides for these earn-out payments as a portion of the purchase price to be paid to the sellers in future periods, contingent on future events. Therefore we included an estimate of the acquisition-date fair value of the contingent consideration of $7.3 million as part of the cost of the combination. The accounting treatment of the contingent consideration to be paid to those of the sellers who continue employment with the Company was evaluated to determine whether the amounts represent purchase consideration or a separate transaction, such as post-transaction employee compensation. Factors evaluated require significant judgment and include, among other factors; consideration of the terms of continuing employment, levels of post-transaction compensation, ownership interest of the sellers/employees, linkage of the contingent consideration to the transaction date combination valuation, and any other agreements or matters related to the transaction.
Based on an evaluation of the factors surrounding the transaction and the terms of the purchase agreement, the amount due under the earn-out provision was accounted for as acquisition consideration. We concluded that the contingent consideration to be paid to the sellers/employees was a significant component of the transaction date valuation of the acquired business. The calculation of the contingent payment was based upon factors established at the date of the transaction to be paid upon meeting the established earnings criteria of RML. The post transaction employment arrangements of the continuing employees are at market rates, and the formula for determining the contingent consideration is consistent with the business valuation methodologies, based upon a multiplier of earnings recognized from RML for five twelve month periods following the acquisition.
For the three months ended March 31, 2015, the Company recorded an adjustment to increase the contingent liability by $1.5 million. The increase in the contingent liability resulted from the excess of RML's pretax income from December 1, 2014 through the end of the first quarter of 2015 over and above estimates made at the close of the purchase of RML. The adjustment to the contingent liability for estimated future earn-out payments is recorded in the line item titled "Change in fair value, RML earn-out liability" in other operating expense on the Consolidated Statements of Income. The total contingent liability as of March 31, 2015 is $8.8 million.
A summary of the net assets acquired and the estimated fair value adjustments of RML are presented below:
		RML
(In Thousands)		December 1, 2014
Cost basis net assets			$11,915
Cash payment made		(18,240		)
Cash surrender value of life insurance paid		(3,896		)
Liability for future earn out payments		(7,318		)
Fair value adjustments:
Loans		(360		)
Trade name intangible		950
Rate lock derivative asset		960
Investment in Homestate Mortgage, LLC		1,490
Other		(311		)
Goodwill			($14,810	)
A summary of assets acquired and liabilities assumed at their estimated fair values are presented below:
		RML
(In Thousands)		December 1, 2014
Assets Acquired:
Cash and equivalents			$10,828
Net loans		41,304
Premises and equipment		255
Trade name intangible		950
Rate lock derivative asset		960
Investment in Homestate Mortgage LLC		3,000
Other real estate owned		270
Other assets		10,291
Total assets acquired			$67,858
Liabilities Assumed:
Borrowings			$37,541
Other liabilities		6,625
Total liabilities assumed			$44,166
The acquisition of RML is not considered significant to the Company’s financial statements under Regulation S-X; however, the Company has determined that the acquisition results in a new reporting segment, Home Mortgage Lending.
The operations of RML are included in our operating results from December 1, 2014, and added revenue of $7.4 million, non-interest expense of $5.1 million, and net income of $2.3 million, before taxes, for the three month period ended March 31, 2015. RML’s results of operations prior to the December 1, 2014 acquisition are included in our operating results under the equity method. Additionally, merger-related costs of $507,000 for the year ended December 31, 2014 were incurred and expensed in connection with the acquisition of RML and recognized within the merger and acquisition expense on the Consolidated Statements of Income.
The following table presents unaudited pro forma results of operations for the three month periods ended March 31, 2014 as if the acquisition of RML had occurred on January 1, 2014. The proforma results have been prepared for comparative purposes only and are not necessarily indicative of the results that would have been obtained had the acquisition actually occurred on January 1, 2014.
(In Thousands, except earnings per share data)		Three Months Ended March 31, 2014
									Pro Forma				Pro Forma
		Company			RML1				Adjustments				Combined
Net interest and other income			$13,967			$4,143		2		$144		3		$18,254
Net income attributable to Northrim BanCorp, Inc.		2,658			(426		)		3,072			4	5,304
Earnings Per Share, Basic			$0.41											$0.81
Earnings Per Share, Diluted			$0.40											$0.80
Weighted Average Shares Outstanding, Basic		6,537,652											6,537,652
Weighted Average Shares Outstanding, Diluted		6,629,330											6,629,330
1 RML represents results from January 1 to March 31.
2 2014 amount is comprised of net interest income of $67,000 and $4.1 million of other income.
3 Amount of accretion of the fair value adjustments on loans and income recognized under the equity method prior to the December 2014 acquisition.
4 Amount of accretion of the fair value adjustments on loans, income recognized under the equity method, gain on acquisition, earn out accretion, and the change in the provision for income taxes.
Prior to December 1, 2014, the Company accounted for RML under the equity method of accounting. As of December 1, 2014, the Company owns 100% interest in RML and consolidates RML's activity into the Company's Consolidated Financial Statements.
The following table presents unaudited combined pro forma results of operations for the three month periods ended March 31, 2014 as if the acquisition of Alaska Pacific and RML had occurred on January 1, 2014. The proforma results have been prepared for comparative purposes only and are not necessarily indicative of the results that would have been obtained had the acquisitions actually occurred on January 1, 2014.
(In Thousands, except earnings per share data)		Three Months Ended March 31, 2014
					Alaska							Pro Forma				Pro Forma
		Company			Pacific1			RML2				Adjustments				Combined
Net interest and other income			$13,967			$2,095			$4,143		3		$134		4		$20,339
Net income attributable to Northrim BanCorp, Inc.		2,658			(1,282		)	(426		)		3,218			5	4,168
Earnings Per Share, Basic			$0.41														$0.61
Earnings Per Share, Diluted			$0.40														$0.60
Weighted Average Shares Outstanding, Basic		6,537,652														6,827,864
Weighted Average Shares Outstanding, Diluted		6,629,330														6,919,542
1 Alaska Pacific represents results from January 1 to March 31 for 2014.
2 RML represents results from January 1 to March 31.
3 2014 amount is comprised of net interest income of $67,000 and $4.1 million of other income.
4 Amount of amortization/ accretion of the fair value adjustments on loans and certificates of deposit for Alaska Pacific and amount of accretion of the fair value adjustments on loans and income recognized under the equity method prior to the December 2014 acquisition for RML.
5 Amount of amortization/accretion of the fair value adjustments on loans and certificates of deposit, bargain purchase gain, amortization of cored deposit intangible, and the change in the provision for income taxes for Alaska Pacific and amount of accretion of the fair value adjustments on loans, income recognized under the equity method, gain on acquisition, earn out accretion, and the change in the provision for income taxes for RML.

Cash_and_Cash_Equivalents

Cash and Cash Equivalents	3 Months Ended
	Mar. 31, 2015
Cash and Due from Banks [Abstract]
Cash and Cash Equivalents	Cash and Cash Equivalents
	For purposes of reporting cash flows, cash and cash equivalents include cash on hand, amounts due from banks, interest-bearing deposits with other banks, banker’s acceptances, commercial paper, securities purchased under agreement to resell, federal funds sold, and securities with maturities of less than 90 days at acquisition.  As of March 31, 2015, the Company had one certificate of deposit totaling $3.5 million in another bank with original maturity greater than 90 days. Cash and cash equivalent balances placed with the Federal Reserve of San Francisco is the only concentration representing more than 10% of the Company’s equity.

Investment_Securities

Investment Securities	3 Months Ended
	Mar. 31, 2015
Marketable Securities [Abstract]
Investment Securities	Investment Securities
	The carrying values and approximate fair values of investment securities at the periods indicated are presented below:
	(In Thousands)	Amortized Cost			Gross Unrealized Gains				Gross Unrealized Losses			Fair Value
	March 31, 2015
	Securities available for sale
	U.S. Treasury and government sponsored entities		$199,754			$548				$47			$200,255
	Municipal securities	11,962			252				1			12,213
	U.S. Agency mortgage-backed securities	976			5				2			979
	Corporate bonds	38,895			412				—			39,307
	Preferred stock	1,992			26				—			2,018
	Total securities available for sale		$253,579			$1,243				$50			$254,772
	Securities held to maturity
	Municipal securities		$2,199			$97				$—			$2,296
	Total securities held to maturity		$2,199			$97				$—			$2,296
	December 31, 2014
	Securities available for sale
	U.S. Treasury and government sponsored entities		$226,624			$105				$539			$226,190
	Municipal securities	11,843			285				4			12,124
	U.S. Agency mortgage-backed securities	1,024			6				1			1,029
	Corporate bonds	38,820			415				—			39,235
	Preferred stock	2,999			153				—			3,152
	Total securities available for sale		$281,310			$964				$544			$281,730
	Securities held to maturity
	Municipal securities		$2,201			$107				$—			$2,308
	Total securities held to maturity		$2,201			$107				$—			$2,308
	Gross unrealized losses on investment securities and the fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at March 31, 2015 and December 31, 2014 were as follows:
		Less Than 12 Months					More Than 12 Months					Total
	(In Thousands)	Fair Value		Unrealized Losses			Fair Value			Unrealized Losses		Fair Value		Unrealized Losses
	March 31, 2015:
	Securities Available for Sale
	U.S. Treasury and government sponsored entities		$42,883		$47			$—			$—		$42,883		$47
	Municipal Securities	208		1			—			—		208		1
	Mortgage-backed Securities	172		2			—			—		172		2
	Total		$43,263		$50			$—			$—		$43,263		$50
	December 31, 2014:
	Securities Available for Sale
	U.S. Treasury and government sponsored entities		$165,004		$539			$—			$—		$165,004		$539
	Municipal Securities	567		4			—			—		567		4
	Mortgage-backed Securities	117		1			—			—		117		1
	Total		$165,688		$544			$—			$—		$165,688		$544
	There were fourteen and twenty-nine available-for-sale securities with unrealized losses as of March 31, 2015 and December 31, 2014, respectively, that have been in a loss position for less than twelve months. There were no securities as of March 31, 2015 and December 31, 2014 that have been in an unrealized loss position for more than twelve months.  The contractual terms of the investments in a loss position do not permit the issuer to settle the securities at a price less than the amortized cost of the investment. Because the Company does not intend to sell, nor is it required to sell these investments until a market price recovery or maturity, these investments are not considered other-than-temporarily impaired.
	At March 31, 2015, $56.3 million in securities, or 22%, of the investment portfolio was pledged for deposits and borrowings, as compared to $54.1 million, or 19%, at December 31, 2014. We held no securities of any single issuer (other than government sponsored entities) that exceeded 10% of our shareholders’ equity at March 31, 2015 and December 31, 2014.
	The amortized cost and fair values of debt securities at March 31, 2015, are distributed by contractual maturity as shown below.  Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.  Although preferred stock has no stated maturity, it is aggregated in the calculation of weighted average yields presented below in the category of investments that mature in ten years or more.
	(In  Thousands)	Amortized Cost			Fair Value				Weighted Average Yield
	US Treasury and government sponsored entities
	1-5 years		$199,754			$200,255			1.13	%
	Total		$199,754			$200,255			1.13	%
	U.S. Agency mortgage-backed securities
	1-5 years		$50			$50			2.29	%
	5-10 years	289			289				3.26	%
	Over 10 years	637			640				2.91	%
	Total		$976			$979			2.98	%
	Corporate bonds
	Within 1 year		$736			$738			0.91	%
	1-5 years	36,159			36,552				1.45	%
	5-10 years	2,000			2,017				1.07	%
	Total		$38,895			$39,307			1.42	%
	Preferred stock
	Over 10 years		$1,992			$2,018			4.71	%
	Total		$1,992			$2,018			4.71	%
	Municipal securities
	Within 1 year		$2,091			$2,096			0.64	%
	1-5 years	7,142			7,321				2.67	%
	5-10 years	4,928			5,092				4.54	%
Total		$14,161			$14,509			3.02	%
The proceeds and resulting gains and losses, computed using specific identification, from sales of investment securities for the three months ending March 31, 2015 and 2014 respectively, are as follows:
(In Thousands)	Proceeds			Gross Gains				Gross Losses
2015
Available for sale securities		$1,621			$114				$—
2014
Available for sale securities		$2,098			$97				$—
A summary of interest income for the three months ending March 31, 2015 and 2014 on available for sale investment securities is as follows:
(In Thousands)	2015			2014
US Treasury and government sponsored entities		$618			$335
U.S. Agency mortgage-backed securities	7			—
Other	175			258
Total taxable interest income		$800			$593
Municipal securities		$85			$137
Total tax-exempt interest income		$85			$137
Total		$885			$730

Loans_Held_for_Sale

Loans Held for Sale	3 Months Ended
	Mar. 31, 2015
Loans and Leases Receivable Disclosure [Abstract]
Loans Held for Sale	Loans Held for Sale
	The Company acquired the remaining 76.5% of RML on December 1, 2014. RML originates 1-4 family residential mortgages and sells them to the secondary market. These loans are shown as loans held for sale on the Company's Consolidated Balance Sheet. RML originated $176.4 million and sold $158.4 million in loans during the three-month period ending March 31, 2015. Prior to December 1, 2014, the Company had a 23.5% ownership interest in RML and purchased residential loans from them.  The Company then sold these loans in the secondary market.  The Company purchased $30.5 million and sold $27.5 million in loans from RML during the three-month period ending March 31, 2014.

Loans

Loans	3 Months Ended
	Mar. 31, 2015
Loans [Abstract]
Loans	Loans
	The following table presents total portfolio loans by portfolio segment and class of financing receivable, based on our risk classification criteria:
	(In Thousands)	Commercial				Real estate construction one-to-four family				Real estate construction other				Real estate term owner occupied				Real estate term non-owner occupied				Real estate term other		Consumer secured by 1st deeds of trust			Consumer other		Total
	March 31, 2015
	AQR Pass		$307,514				$41,272				$92,382				$103,593				$291,821				$39,716		$29,833			$30,242		$936,373
	AQR Special Mention	11,601				—				—				5,780				2,094				—		398			43		19,916
	AQR Substandard	5,318				—				—				594				1,668				433		643			81		8,737
	AQR Doubtful	—				—				—				—				—				—		—			—		—
	AQR Loss	—				—				—				—				—				—		—			—		—
	Subtotal		$324,433				$41,272				$92,382				$109,967				$295,583				$40,149		$30,874			$30,366		$965,026
	Less: Unearned origination fees, net of origination costs																												(4,462		)
	Total loans																													$960,564
	December 31, 2014
	AQR Pass		$291,020				$34,651				$91,195				$103,049				$282,774				$36,705		$31,118			$31,399		$901,911
	AQR Special Mention	11,618				—				—				5,817				2,095				39		396			47		20,012
	AQR Substandard	3,905				191				—				606				1,747				150		486			47		7,132
	AQR Doubtful	—				—				—				—				—				—		—			—		—
	AQR Loss	—				—				—				—				—				—		—			—		—
	Subtotal		$306,543				$34,842				$91,195				$109,472				$286,616				$36,894		$32,000			$31,493		$929,055
	Less: Unearned origination fees, net of origination costs																												(4,551		)
	Total loans																													$924,504
	Loans are carried at their principal amount outstanding, net of charge-offs, unamortized fees and direct loan origination costs.  Loan balances are charged-off to the allowance for loan losses ("Allowance") when management believes that collection of principal is unlikely.  Interest income on loans is accrued and recognized on the principal amount outstanding except for loans in a nonaccrual status.  All classes of loans are placed on nonaccrual and considered impaired when management believes doubt exists as to the collectability of the interest or principal.  Cash payments received on nonaccrual loans are directly applied to the principal balance.  Generally, a loan may be returned to accrual status when the delinquent principal and interest is brought current in accordance with the terms of the loan agreement.  Additionally, certain ongoing performance criteria, which generally includes a performance period of six months, must be met in order for a loan to be returned to accrual status.  Loans are reported as past due when installment payments, interest payments, or maturity payments are past due based on contractual terms.
	Nonaccrual loans totaled $4.8 million and  $4.7 million at March 31, 2015 and December 31, 2014, respectively. Nonaccrual loans at the periods indicated, by segment, are presented below:
	(In  Thousands)	March 31, 2015				December 31, 2014
	Commercial		$2,538				$2,031
	Real estate construction one-to-four family	—				191
	Real estate construction other	—				—
	Real estate term owner occupied	127				135
	Real estate term non-owner occupied	1,668				1,746
	Real estate term other	—				39
	Consumer secured by 1st deeds of trust	477				485
	Consumer other	—				47
	Total		$4,810				$4,674
	Past due loans and nonaccrual loans at the periods indicated are presented below by loan class:
	(In Thousands)	30-59 Days				60-89 Days				Greater Than				Nonaccrual				Total Past				Current		Total
		Past Due				Past Due				90 Days								Due
		Still				Still				Still
		Accruing				Accruing				Accruing
	March 31, 2015
	AQR Pass		$1,246				$55				$—				$—				$1,301				$935,072		$936,373
	AQR Special Mention	49				—				—				—				49				19,867		19,916
	AQR Substandard	166				565				—				4,810				5,541				3,196		8,737
	AQR Doubtful	—				—				—				—				—				—		—
	AQR Loss	—				—				—				—				—				—		—
	Subtotal		$1,461				$620				$—				$4,810				$6,891				$958,135		$965,026
	Less: Unearned origination fees,  net of origination costs																							(4,462		)
	Total																								$960,564
	December 31, 2014
	AQR Pass		$696				$545				$—				$—				$1,241				$900,670		$901,911
	AQR Special Mention	—				—				—				—				—				20,012		20,012
	AQR Substandard	40				—				—				4,674				4,714				2,418		7,132
	AQR Doubtful	—				—				—				—				—				—		—
	AQR Loss	—				—				—				—				—				—		—
	Subtotal		$736				$545				$—				$4,674				$5,955				$923,100		$929,055
	Less: Unearned origination fees,  net of origination costs																							(4,551		)
	Total																								$924,504
	The Company considers a loan to be impaired when it is probable that it will be unable to collect all amounts due according to the contractual terms of the loan agreement.  Once a loan is determined to be impaired, the impairment is measured based on the present value of the expected future cash flows discounted at the loan’s effective interest rate, except that if the loan is collateral dependent, the impairment is measured by using the fair value of the loan’s collateral.  Nonperforming loans greater than $50,000 are individually evaluated for impairment based upon the borrower’s overall financial condition, resources, and payment record, and the prospects for support from any financially responsible guarantors.
	At March 31, 2015 and December 31, 2014, the recorded investment in loans that are considered to be impaired was $12.8 million and $11.3 million, respectively.  The following table presents information about impaired loans by class as of the periods indicated:
	(In Thousands)	Recorded Investment				Unpaid Principal Balance				Related Allowance
	March 31, 2015
	With no related allowance recorded
	Commercial - AQR special mention		$166				$166				$—
	Commercial - AQR substandard	2,729				2,874				—
	Real estate construction other - AQR pass	755				755				—
Real estate term owner occupied- AQR pass	498				498				—
Real estate term owner occupied- AQR special mention	271				271				—
Real estate term owner occupied- AQR substandard	549				549				—
Real estate term non-owner occupied- AQR pass	543				543				—
Real estate term non-owner occupied- AQR special mention	2,087				2,087				—
Real estate term non-owner occupied- AQR substandard	1,668				1,668				—
Real estate term other - AQR substandard	149				149				—
Consumer secured by 1st deeds of trust - AQR pass	81				81				—
Consumer secured by 1st deeds of trust - AQR substandard	605				618				—
Subtotal		$10,101				$10,259				$—
With an allowance recorded
Commercial - AQR substandard		$2,442				$2,442				$361
Real estate term other - AQR substandard	284				284				55
Subtotal		$2,726				$2,726				$416
Commercial - AQR special mention		$166				$166				$—
Commercial - AQR substandard	5,171				5,316				361
Real estate construction other - AQR pass	755				755				—
Real estate term owner-occupied - AQR pass	498				498				—
Real estate term owner-occupied - AQR special mention	271				271				—
Real estate term owner-occupied - AQR substandard	549				549				—
Real estate term non-owner occupied - AQR pass	543				543				—
Real estate term non-owner occupied - AQR special mention	2,087				2,087				—
Real estate term non-owner occupied - AQR substandard	1,668				1,668				—
Real estate term other - AQR substandard	433				433				55
Consumer secured by 1st deeds of trust - AQR pass	81				81				—
Consumer secured by 1st deeds of trust - AQR substandard	605				618				—
Total		$12,827				$12,985				$416
(In Thousands)	Recorded Investment				Unpaid Principal Balance				Related Allowance
December 31, 2014
With no related allowance recorded
Commercial - AQR special mention		$170				$170				$—
Commercial - AQR substandard	3,000				3,045				—
Real estate construction one-to-four family - AQR special mention	191				191				—
Real estate construction other - AQR pass	772				772				—
Real estate term owner occupied - AQR pass	501				501				—
Real estate term owner occupied - AQR special mention	273				273				—
Real estate term owner occupied - AQR substandard	558				558				—
Real estate term non-owner occupied - AQR pass	549				549				—
Real estate term non-owner occupied - AQR special mention	2,088				2,088				—
Real estate term non-owner occupied - AQR substandard	1,709				1,709				—
Real estate term other - AQR substandard	150				150				—
Consumer secured by 1st deeds of trust - AQR pass	82				82				—
Consumer secured by 1st deeds of trust - AQR special mention	448				461				—
Subtotal		$10,491				$10,549				$—
With an allowance recorded
Commercial - AQR substandard		$806				$806				$75
Subtotal		$806				$806				$75
Commercial - AQR special mention		$170				$170				$—
Commercial - AQR substandard	3,806				3,851				75
Real estate construction one-to-four family - AQR special mention	191				191				—
Real estate construction other - AQR pass	772				772				—
Real estate term owner occupied - AQR pass	501				501				—
Real estate term owner occupied - AQR special mention	273				273				—
Real estate term owner occupied - AQR substandard	558				558				—
Real estate term non-owner occupied - AQR pass	549				549				—
Real estate term non-owner occupied - AQR special mention	2,088				2,088				—
Real estate term non-owner occupied - AQR substandard	1,709				1,709				—
Real estate term other - AQR substandard	150				150				—
Consumer secured by 1st deeds of trust - AQR pass	82				82				—
Consumer secured by 1st deeds of trust - AQR special mention	448				461				—
Total		$11,297				$11,355				$75
The unpaid principal balance included in the table above represents the recorded investment at the dates indicated, plus amounts charged off for book purposes.
The following table summarizes our average recorded investment and interest income recognized on impaired loans for the three month periods ended March 31, 2015 and 2014, respectively:
Three Months Ended March 31,	2015								2014
(In Thousands)	Average Recorded Investment			Interest Income Recognized				Average Recorded Investment				Interest Income Recognized
With no related allowance recorded
Commercial - AQR special mention		$168				$3				$132				$1
Commercial - AQR substandard	3,040				29				393				4
Real estate construction one-to-four family - AQR special mention	—				—				353				6
Real estate construction other - AQR pass	763				30				—				—
Real estate construction other - AQR special mention	—				—				823				30
Real estate term owner occupied- AQR pass	499				12				511				11
Real estate term owner occupied- AQR special mention	272				5				281				6
Real estate term owner occupied- AQR substandard	640				9				869				13
Real estate term non-owner occupied- AQR pass	546				19				618				19
Real estate term non-owner occupied- AQR special mention	2,175				44				979				15
Real estate term non-owner occupied- AQR substandard	2,371				—				—				—
Real estate term other - AQR substandard	150				3				154				3
Consumer secured by 1st deeds of trust - AQR pass	81				1				87				1
Consumer secured by 1st deeds of trust - AQR substandard	677				—				—				—
Consumer other - AQR substandard	—				—				61				—
Subtotal		$11,382				$155				$5,261				$109
With an allowance recorded
Commercial - AQR special mention		$—				$—				$185				$6
Commercial - AQR substandard	2,245				—				600				—
Real estate term other - AQR substandard	284				—				—				—
Consumer secured by 1st deeds of trust - AQR substandard	—				—				185				—
Subtotal		$2,529				$—				$970				$6
Total
Commercial - AQR special mention		$168				$3				$317				$7
Commercial - AQR substandard	5,285				29				993				4
Real estate construction one-to-four family - AQR special mention	—				—				353				6
Real estate construction other - AQR pass	763				30				—				—
Real estate construction other - AQR special mention	—				—				823				30
Real estate term owner-occupied - AQR pass	499				12				511				11
Real estate term owner-occupied - AQR special mention	272				5				281				6
Real estate term owner-occupied - AQR substandard	640				9				869				13
Real estate term non-owner occupied - AQR pass	546				19				618				19
Real estate term non-owner occupied - AQR special mention	2,175				44				979				15
Real estate term non-owner occupied - AQR substandard	2,371				—				—				—
Real estate term other - AQR substandard	434				3				154				3
Consumer secured by 1st deeds of trust - AQR pass	81				1				87				1
Consumer secured by 1st deeds of trust - AQR substandard	677				—				185				—
Consumer other - AQR substandard	—				—				61				—
Total Impaired Loans		$13,911				$155				$6,231				$115
As described in Note 3 above, the Company acquired 18 purchased credit impaired loans from Alaska Pacific on April 1, 2014 subject to the requirements of FASB ASC  310-30 Loans and Debt Securities Acquired with Deteriorated Credit Quality. This group of loans consists primarily of commercial and commercial real estate loans, and unlike a pool of consumer mortgages, it is not practicable for the Company to analyze the accretable yield of these loans. As such, the Company has elected the cost recovery method of income recognition for these loans, and thus no accretable difference has been identified for these loans. At the acquisition date, April 1, 2014, the fair value of this group of loans was $3.9 million. The carrying value of these loans as of March 31, 2015 is $2.8 million.
Loans classified as troubled debt restructurings (“TDR”) totaled $9.0 million and  $7.7 million at March 31, 2015 and December 31, 2014, respectively.  A TDR is a loan to a borrower that is experiencing financial difficulty that has been modified from its original terms and conditions in such a way that the Company is granting the borrower a concession that it would not grant otherwise.  The Company has granted a variety of concessions to borrowers in the form of loan modifications.  The modifications granted can generally be described in the following categories:
Rate Modification:  A modification in which the interest rate is changed.
Term Modification:  A modification in which the maturity date, timing of payments, or frequency of payments is changed.
Payment Modification:  A modification in which the dollar amount of the payment is changed, or in which a loan is converted to interest only payments for a period of time is included in this category.
Combination Modification:  Any other type of modification, including the use of multiple categories above.
AQR pass graded loans included above in the impaired loan data are loans classified as TDRs. By definition, TDRs are considered impaired loans. All of the Company's TDRs are included in impaired loans.
The following table presents newly restructured loans that occurred during the three months ended March 31, 2015:
	Accrual Status				Nonaccrual Status				Total Modifications
(In Thousands)
New Troubled Debt Restructurings
Commercial - AQR substandard		$150				$1,204				$1,354
Subtotal		$150				$1,204				$1,354
Existing Troubled Debt Restructurings	5,638				2,041				7,679
Total		$5,788				$3,245				$9,033
The following table presents newly restructured loans that occurred during the three months ended March 31, 2015, by concession (terms modified):
			March 31, 2015
	Number of Contracts		Rate Modification				Term Modification				Payment Modification				Combination Modification				Total Modifications
(In Thousands)
Pre-Modification Outstanding Recorded Investment:
Commercial - AQR substandard	2			$—				$—				$—				$900				$900
Total	2			$—				$—				$—				$900				$900
Post-Modification Outstanding Recorded Investment:
Commercial - AQR substandard	2			$—				$—				$—				$1,354				$1,354
Total	2			$—				$—				$—				$1,354				$1,354
The Company had no commitments to extend additional credit to borrowers whose terms have been modified in TDRs. There were no charge offs in the three months ended March 31, 2015 on loans that were later classified as TDRs.
All TDRs are also classified as impaired loans and are included in the loans individually evaluated for impairment in the calculation of the Allowance. There were two TDRs with a total recorded investment of $1.4 million and a specific impairment amount totaling $215,000 at March 31, 2015 and no TDRs with specific impairment at December 31, 2014, respectively.
The loans in the following table are past due, and they are nonaccrual loans. The following table presents TDRs that occurred during the last twelve months that subsequently defaulted, for the periods ending March 31, 2015 and 2014, respectively:
			March 31, 2015						March 31, 2014
	Number of Contracts		Recorded Investment				Number of Contracts		Recorded Investment
(In  Thousands)
Troubled Debt Restructurings that Subsequently Defaulted:
Real estate construction one-to-four family - AQR special mention	—			$—			1			$353
Total	—			$—			1			$353
At March 31, 2015, the Company had no TDRs that subsequently defaulted within the twelve month period ending March 31, 2015. At December 31, 2014, the Company had no TDRs that subsequently defaulted within the twelve month period ending December 31, 2014.

Allowance_for_Loan_Losses

Allowance for Loan Losses	3 Months Ended
	Mar. 31, 2015
Loans and Leases Receivable, Allowance [Abstract]
Allowance for Loan Losses	Allowance for Loan Losses
	The following tables detail activity in the Allowance for the periods indicated:
	Three Months Ended March 31,	Commercial			Real estate construction one-to-four family			Real estate construction other			Real estate term owner occupied			Real estate term non-owner occupied			Real estate term other			Consumer secured by 1st deed of trust			Consumer other			Unallocated			Total
	2015
	Balance, beginning of period		$5,643			$644			$1,653			$1,580			$4,704			$656			$285			$410			$1,148			$16,723
	Charge-Offs	(107		)	—			—			—			—			(81		)	—			—			—			(188		)
	Recoveries	67			—			—			—			—			17			—			2			—			86
	Provision (benefit)	488			113			10			(10		)	90			164			(11		)	(10		)	(508		)	326
	Balance, end of period		$6,091			$757			$1,663			$1,570			$4,794			$756			$274			$402			$640			$16,947
	Balance, end of period:
	Individually evaluated
	for impairment		$361			$—			$—			$—			$—			$55			$—			$—			$—			$416
	Balance, end of period:
	Collectively evaluated
	for impairment		$5,730			$757			$1,663			$1,570			$4,794			$701			$274			$402			$640			$16,531
	2014
	Balance, beginning of period		$5,779			$557			$539			$1,583			$4,297			$537			$322			$390			$2,278			$16,282
	Charge-Offs	(320		)	—			—			—			—			—			—			(9		)	—			(329		)
	Recoveries	54			12			—			—			—			—			—			13			—			79
	Provision (benefit)	144			(56		)	84			(176		)	(4		)	118			(9		)	(10		)	(91		)	—
	Balance, end of period		$5,657			$513			$623			$1,407			$4,293			$655			$313			$384			$2,187			$16,032
	Balance, end of period:
	Individually evaluated
	for impairment		$277			$—			$—			$—			$—			$—			$5			$—			$—			$282
	Balance, end of period:
	Collectively evaluated
	for impairment		$5,380			$513			$623			$1,407			$4,293			$655			$308			$384			$2,187			$15,750
	The following is a detail of the recorded investment in the loan portfolio, segregated by amounts evaluated individually or collectively in the Allowance at the periods indicated:
	(In Thousands)	Commercial				Real estate construction one-to-four family				Real estate construction other				Real estate term owner occupied				Real estate term non-owner occupied				Real estate term other				Consumer secured by 1st deed of trust				Consumer other		Total
	March 31, 2015
	Balance, end of period		$324,433				$41,272				$92,382				$109,967				$295,583				$40,149				$30,874				$30,366		$965,026
	Balance, end of period:
	Individually evaluated
	for impairment		$5,337				$—				$755				$1,318				$4,298				$433				$686				$—		$12,827
	Balance, end of period:
	Collectively evaluated
	for impairment		$319,096				$41,272				$91,627				$108,649				$291,285				$39,716				$30,188				$30,366		$952,199
	December 31, 2014
	Balance, end of period		$306,543				$34,842				$91,195				$109,472				$286,616				$36,894				$32,000				$31,493		$929,055
	Balance, end of period:
	Individually evaluated
	for impairment		$3,976				$191				$772				$1,332				$4,346				$150				$530				$—		$11,297
	Balance, end of period:
	Collectively evaluated
	for impairment		$302,567				$34,651				$90,423				$108,140				$282,270				$36,744				$31,470				$31,493		$917,758
	The following represents the balance of the Allowance for the periods indicated segregated by segment and class:
	(In Thousands)	Total			Commercial			Real estate construction 1-4 family			Real estate construction other			Real estate term owner occupied			Real estate term non-owner occupied			Real estate term other			Consumer secured by 1st deeds of trust			Consumer other			Unallocated
	March 31, 2015
	Individually evaluated for impairment
	AQR Substandard		$416			$361			$—			$—			$—			$—			$55			$—			$—			$—
	Collectively evaluated for impairment:
	AQR Pass	15,065			5,128			757			1,663			1,379			4,794			701			267			376			—
	AQR Special Mention	793			594			—			—			191			—			—			7			1			—
	AQR Substandard	33			8			—			—			—			—			—			—			25			—
	Unallocated	640			—			—			—			—			—			—			—			—			640
			$16,947			$6,091			$757			$1,663			$1,570			$4,794			$756			$274			$402			$640
	December 31, 2014
	Individually evaluated for impairment:
	AQR Substandard		$75			$75			$—			$—			$—			$—			$—			$—			$—			$—
	Collectively evaluated for impairment:
	AQR Pass	14,643			4,938			644			1,653			1,382			4,703			651			278			394			—
	AQR Special Mention	832			621			—			—			198			—			5			7			1			—
	AQR Substandard	25			9			—			—			—			1			—			—			15			—
	Unallocated	1,148			—			—			—			—			—			—			—			—			1,148
		$16,723			$5,643			$644			$1,653			$1,580			$4,704			$656			$285			$410			$1,148

Purchased_Receivables

Purchased Receivables	3 Months Ended
	Mar. 31, 2015
Purchased Receivables [Abstract]
Purchased Receivables	Purchased Receivables
	We purchase accounts receivable from our business customers and provide them with short-term working capital.  We provide this service to our customers in Alaska and in Washington and the greater west coast through Northrim Funding Services.  Our purchased receivable activity is guided by policies that outline risk management, documentation, and approval limits.  The policies are reviewed and approved annually by the Board of Directors.
	Purchased receivables are carried at their principal amount outstanding, net of a reserve for anticipated losses that have not yet been identified, and have a maturity of less than one year.    Purchased receivable balances are charged against this reserve when management believes that collection of principal is unlikely.  Management evaluates the adequacy of the reserve for purchased receivable losses based on historical loss experience by segment and class of receivable and its assessment of current economic conditions.  As of March 31, 2015, the Company has one segment and class of purchased receivables.  There were no purchased receivables past due at March 31, 2015 or December 31, 2014, respectively, and there were no restructured purchased receivables at March 31, 2015 or December 31, 2014.
	Income on purchased receivables is accrued and recognized on the principal amount outstanding using an effective interest method except when management believes doubt exists as to the collectability of the income or principal.  As of March 31, 2015, the Company is accruing income on all purchased receivable balances outstanding.
	The following table summarizes the components of net purchased receivables for the periods indicated:
	(In Thousands)	March 31, 2015			December 31, 2014
	Purchased receivables		$15,597			$15,543
	Reserve for purchased receivable losses	(265		)	(289		)
	Total		$15,332			$15,254
	The following table sets forth information regarding changes in the purchased receivable reserve for the three month periods ending March 31, 2015 and 2014, respectively:
		Three Months Ended March 31,
	(In Thousands)	2015			2014
	Balance at beginning of period		$289			$273
	Charge-offs	—			—
	Recoveries	30			—
	Charge-offs net of recoveries	30			—
	Reserve for (recovery from) purchased receivables	(54		)	(37		)
	Balance at end of period		$265			$236
	The Company did not record any charge-offs in the first three months of 2015 or 2014, respectively.

Goodwill_and_Intangible_Assets

Goodwill and Intangible Assets	3 Months Ended
	Mar. 31, 2015
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	Goodwill and Intangible Assets
	The Company acquired Alaska Pacific on April 1, 2014. The Company did not record goodwill related to the acquisition of Alaska Pacific. The Company recorded a core deposit intangible of $623,000 related to deposits acquired from Alaska Pacific that will be amortized over its estimated useful life of ten years using an accelerated method. See Note 3 above for further discussion of this transaction.
	The Company acquired the remaining 76.5% of RML on December 1, 2014. The Company recorded $14.8 million of goodwill and $950,000 of trade name intangible as part of the acquisition of RML. These assets have indefinite useful lives and are not amortized. See Note 3 above for further discussion of this transaction.
	The Company performs goodwill impairment testing annually in accordance with the policy described in Note 1 of the Company's Annual Report on Form 10-K for the year ended December 31, 2014.  There was no indication of impairment as of March 31, 2015. The Company continues to monitor the Company’s goodwill for potential impairment on an ongoing basis. No assurance can be given that there will not be an impairment charge to earnings during 2015 for goodwill impairment, if, for example, our stock price declines and trades at a significant discount to its book value, although there are many qualitative and quantitative factors that we analyze in determining the impairment of goodwill.

Deposit_Activities

Deposit Activities	3 Months Ended
	Mar. 31, 2015
Deposits [Abstract]
Deposit Activities	Deposit Activities
	Total deposits at March 31, 2015 and December 31, 2014 were $1.2 billion and $1.2 billion, respectively. The only deposit category with stated maturity dates is certificates of deposit. At March 31, 2015, the Company had $147.3 million in certificates of deposit as compared to certificates of deposit of $142.2 million at December 31, 2014. At March 31, 2015, $75.1 million, or 51%, of the Company’s certificates of deposits are scheduled to mature over the next 12 months as compared to $81.9 million, or 58%, of total certificates of deposit at December 31, 2014.

Derivatives

Derivatives	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Derivatives	Derivatives
	The Company enters into commercial loan interest rate swap agreements in order to provide commercial loan customers the ability to convert from variable to fixed interest rates. Under these agreements, the Company enters into a variable-rate loan agreement with a customer in addition to a swap agreement that effectively converts the customer’s variable rate loan into a fixed rate. The Company then simultaneously enters into a corresponding swap agreement with a third party financial institution (“counterparty”) in order to offset its exposure on the fixed component of the customer’s interest rate swap. The Company has an agreement with its counterparty that contains a provision that provides that if the Company fails to maintain its status as a well-capitalized institution, then the counterparty could terminate the derivative positions and the Company would be required to settle its obligations under the agreement. This agreement also requires that the Company and the counterparty collateralize any fair value shortfalls that exceed $250,000 with eligible collateral, which includes cash and securities backed with the full faith and credit of the federal government. Similarly, the Company could be required to settle its obligations under the agreement if specific regulatory events occur, such as if the Company were issued a prompt corrective action directive or a cease and desist order, or if certain regulatory ratios fall below specified levels. The Company pledged $262,000 and zero in available for sale securities to collateralize fair value shortfalls on interest rate swap agreements as of March 31, 2015 and December 31, 2014, respectively.
	The interest rate swap agreements with our customers and the counterparty are not designated as hedging instruments under the Derivatives and Hedging topic of the FASB ASC 815, rather they are accounted for as free standing derivatives with changes in fair value reported in income. The Company had interest rate swaps with an aggregate notional amount of $23.0 million and $23.6 million at March 31, 2015 and December 31, 2014, respectively. At March 31, 2015, the notional amount of interest rate swaps is made up of two swaps totaling $11.5 million, a variable to fixed rate swap to a commercial loan customer and two swaps totaling $11.5 million fixed to variable rate swap with a counterparty. Changes in fair value from these four interest rate swaps offset each other in the first quarter of 2015. The Company did not recognize any fee income related to interest rate swaps in the three month periods ending March 31, 2015 or 2014, respectively. Interest rate swap income is recorded in other income on the Consolidated Statements of Income.
	The Company also uses derivatives to hedge the risk of changes in the fair values of interest rate lock commitments. None of the Company’s derivatives are designated as hedging instruments. Rather, they are accounted for as free-standing derivatives, or economic hedges, with changes in the fair value of the derivatives reported in income. The Company primarily utilizes forward interest rate contracts in its derivative risk management strategy.
	RML enters into commitments to originate residential mortgage loans, and it enters into forward delivery contracts to sell mortgage-backed securities to broker/dealers at specific prices and dates in order to hedge the interest rate risk in its residential mortgage loan commitments. Market risk with respect to commitments to originate loans arises from changes in the value of contractual positions due to changes in interest rates. RML had commitments to originate mortgage loans held for sale totaling $81.2 million and $39.6 million at March 31, 2015 and December 31, 2014, respectively. Changes in the value of RML's interest rate derivatives are recorded in the mortgage banking income on the Consolidated Statements of Income.
	The following table presents the fair value of derivatives not designated as hedging instruments at March 31, 2015 and December 31, 2014:
	(In Thousands)	Asset Derivatives
				March 31, 2015		December 31, 2014
		Balance Sheet Location		Fair Value		Fair Value
	Interest rate contracts	Other assets			$198		$78
	Interest rate lock commitments	Other assets		1,972		841
	Total				$2,170		$919
	(In Thousands)	Liability Derivatives
				March 31, 2015		December 31, 2014
		Balance Sheet Location		Fair Value		Fair Value
	Interest rate contracts	Other liabilities			$597		$158
	The following table presents the gains of derivatives not designated as hedging instruments at March 31, 2015:
	(In Thousands)	Income Statement Location	March 31, 2015
	Interest rate contracts	Mortgage banking income			$787

Stock_Incentive_Plan

Stock Incentive Plan	3 Months Ended
	Mar. 31, 2015
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock Incentive Plan	Stock Incentive Plan
	The Company adopted the 2014 Stock Option Plan (“2014 Plan”) following shareholder approval of the 2014 Plan at the 2014 Annual Meeting.  Subsequent to the adoption of the 2014 Plan, no additional grants may be issued under the prior plans.  The 2014 Plan provides for grants of up to 350,000 shares.
	Stock Options:  Under the 2014 Plan and previous plans, certain key employees have been granted the option to purchase set amounts of common stock at the market price on the day the option was granted.  Optionees, at their own discretion, may cover the cost of exercise through the exchange at the then fair value of already owned shares of the Company’s stock.  Options are granted for a 10-year period and vest on a pro-rata basis over the initial three years from grant.
	The Company measures the fair value of each stock option at the date of grant using the Black-Scholes option pricing model. For the three months ended March 31, 2015 and 2014, the Company recognized $22,000 and $16,000, respectively, in stock option compensation expense as a component of salaries and other personnel expense.
	There were no exercises of stock options in the three months ended March 31, 2015 and 2014, respectively.
	There were no stock options granted in the first quarter of 2015.
	Restricted Stock Units:  The Company grants restricted stock units to certain key employees periodically.  Recipients of restricted stock units do not pay any cash consideration to the Company for the shares and receive all dividends with respect to such shares when the shares vest. Restricted stock units cliff vest at the end of a three-year time period. For the three months ended March 31, 2015 and 2014, the Company recognized $96,000 and $91,000, respectively, in restricted stock unit compensation expense as a component of salaries and other personnel expense.
	There were no restricted stock units granted in the first quarter of 2015.

Fair_Value_of_Assets_and_Liabi

Fair Value of Assets and Liabilities	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Fair Value of Assets and Liabilities	Fair Value of Assets and Liabilities
	The Company groups its assets and liabilities measured at fair value in three levels, based on the markets in which the assets and liabilities are traded and the reliability of the assumptions used to determine fair value. These levels are:
	•	Level 1:  Valuation is based upon quoted prices for identical instruments traded in active exchange markets, such as the New York Stock Exchange.  Valuations are obtained from readily available pricing sources for market transactions involving identical assets or liabilities.
	•	Level 2:  Valuation is based upon quoted market prices for similar instruments in active markets, quoted prices for identical or similar instruments in markets that are not active, and model-based valuation techniques for which all significant assumptions are observable in the market.
	•	Level 3:  Valuation is generated from model-based techniques that use significant assumptions not observable in the market.  These unobservable assumptions reflect the Company’s estimation of assumptions that market participants would use in pricing the asset or liability.  Valuation techniques include use of option pricing models, discounted cash flow models and similar techniques.
	The following methods and assumptions were used to estimate fair value disclosures.  All financial instruments are held for other than trading purposes.
	Cash and cash equivalents: Due to the short term nature of these instruments, the carrying amounts reported in the balance sheet represent their fair values.
	Investment securities: Fair values for investment securities are based on quoted market prices, where available.  If quoted market prices are not available, fair values are based on quoted market prices of comparable instruments.  Investments in Federal Home Loan Bank stock are recorded at cost, which also represents fair value.
	Loans held for sale:  Due to the short term nature of these instruments, the carrying amounts reported in the balance sheet approximate their fair values.
	Loans:  Fair values were generally determined by discounting both principal and interest cash flows on pools of loans expected to be collected using a discount rate for similar instruments with adjustments that the Company believes a market participant would consider in determining fair value. The Company estimates the cash flows expected to be collected using internal credit risk, interest rate and prepayment risk models that incorporate the Corporation’s best estimate of current key assumptions, such as default rates, loss severity and prepayment speeds for the life of the loan. The carrying value of loans is presented net of the Allowance (see Note 8).  Impaired loans are carried at fair value.  Specific valuation allowances are included in the Allowance.
	Purchased receivables: Fair values for purchased receivables are based on their carrying amounts due to their short duration and repricing frequency.  Generally, purchased receivables have a duration of less than one year.
	Mortgage servicing rights: MSR are measured at fair value on a recurring basis. These assets are classified as Level 3. In order to determine the fair value of MSRs, the present value of net expected future cash flows is estimated. Assumptions used include market discount rates, anticipated prepayment speeds, escrow calculations, delinquency rates, and ancillary fee income net of servicing costs. The model assumptions are also compared to publicly filed information from several large MSR holders, as available.
	Accrued interest receivable: Due to the short term nature of these instruments, the carrying amounts reported in the balance sheet represent their fair values.
	Deposits: The fair value for deposits with stated maturities was determined by discounting contractual cash flows using current market rates for instruments with similar maturities. For deposits with no stated maturities, the carrying value was considered to approximate fair value and does not take into account the significant value of the cost advantage and stability of the Company's long-term relationships with depositors.
	Accrued interest payable: Due to the short term nature of these instruments, the carrying amounts reported in the balance sheet represent their fair values.
	Securities sold under repurchase agreements: Fair values for securities sold under repurchase agreements are based on their carrying amounts due to their short duration and repricing frequency.
	Borrowings: Due to the short term nature of these instruments, the carrying amount of short-term borrowings reported in the balance sheet approximate the fair value.  Fair values for long-term borrowings are estimated using a discounted cash flow calculation that applies currently offered interest rates to a schedule of aggregate expected monthly payments.
	Contingent liability, earn-out payments related to acquisition of RML: The contingent liability for estimated earn-out payments included as a portion of the purchase price for RML is recorded in the balance sheet at it estimated fair value, and fair value adjustments to the liability are reported in other operating expense. The fair value for this contingent liability is estimated based on management's assessment of expected pre-tax income at RML over the remaining earn out period. These cash flows are discounted to present value using the appropriate FHLB borrowing rate, Inputs to this assessment include the general economic conditions in our markets that impact mortgage loan originations, current and anticipated trends in local market demand for mortgage, including interest rates, and RML's estimated market share.
	Junior subordinated debentures: Fair value adjustments for junior subordinated debentures are based on discounted cash flows to maturity using current interest rates for similar financial instruments.  Management utilized a market approach to determine the appropriate discount rate for junior subordinated debentures.
	Derivative instruments: The fair value of the interest rate lock commitments are estimated using quoted or published market prices for similar instruments, adjusted for factors such as pull-through rate assumptions based on historical information, where appropriate. The pull-through rate assumptions are considered Level 3 valuation inputs and are significant to the interest rate lock commitment valuation; as such, the interest rate lock commitment derivatives are classified as Level 3. Interest rate contracts are valued in a model, which uses as its basis a discounted cash flow technique incorporating credit valuation adjustments to reflect nonperformance risk in the measurement of fair value. Although the Bank has determined that the majority of inputs used to value its interest rate derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. However, as of March 31, 2015, the Bank has assessed the significance of the impact of these adjustments on the overall valuation of its interest rate positions and has determined that the they are not significant to the overall valuation of its interest rate derivatives. As a result, the Bank has classified its interest rate derivative valuations in Level 2 of the fair value hierarchy.
	Assets subject to nonrecurring adjustment to fair value: The Company is also required to measure certain assets such as equity method investments, goodwill, intangible assets, impaired loans, and other real estate owned (“OREO”) at fair value on a nonrecurring basis in accordance with GAAP.  Any nonrecurring adjustments to fair value usually result from the write down of individual assets.
	The Company uses either in-house evaluations or external appraisals to estimate the fair value of OREO and impaired loans as of each reporting date.  In-house appraisals are considered Level 3 inputs and external appraisals are considered Level 2 inputs. The Company’s determination of which method to use is based upon several factors.  The Company takes into account compliance with legal and regulatory guidelines, the amount of the loan, the size of the assets, the location and type of property to be valued and how critical the timing of completion of the analysis is to the assessment of value.  Those factors are balanced with the level of internal expertise, internal experience and market information available, versus external expertise available such as qualified appraisers, brokers, auctioneers and equipment specialists.
	The Company uses external sources to estimate fair value for projects that are not fully constructed as of the date of valuation.  These projects are generally valued as if complete, with an appropriate allowance for cost of completion, including contingencies developed from external sources such as vendors, engineers and contractors.  The Company believes that recording other real estate owned that is not fully constructed based on as if complete values is more appropriate than recording other real estate owned that is not fully constructed using as is values.  We concluded that as-is-complete values are appropriate for these types of projects based on the accounting guidance for capitalization of project costs and subsequent measurement of the value of real estate.  GAAP specifically states that estimates and cost allocations must be reviewed at the end of each reporting period and reallocated based on revised estimates.  The Company adjusts the carrying value of other real estate owned in accordance with this guidance for increases in estimated cost to complete that exceed the fair value of the real estate at the end of each reporting period.
	Commitments to extend credit and standby letters of credit: The fair value of commitments is estimated using the fees currently charged to enter into similar agreements, taking into account the remaining terms of the agreements and the present creditworthiness of the counterparties.  For fixed-rate loan commitments, fair value also considers the difference between current levels of interest rates and the committed rates.  The fair value of letters of credit is based on fees currently charged for similar agreements or on the estimated cost to terminate them or otherwise settle the obligation with the counterparties at the reporting date.
	Limitations: Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument.  These estimates do not reflect any premium or discount that could result from offering for sale at one time the Company’s entire holdings of a particular financial instrument.  Because no market exists for a significant portion of the Company’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors.  These estimates are subjective in nature and involve uncertainties and matters of significant judgment and therefore cannot be determined with precision.  Changes in assumptions could significantly affect the estimates.
	Estimated fair values as of the periods indicated are as follows:
		March 31, 2015						December 31, 2014
	(In Thousands)	Carrying Amount				Fair Value		Carrying Amount		Fair  Value
	Financial assets:
	Level 1 inputs:
	Cash, due from banks and deposits in other banks		$46,072				$46,072		$72,056		$72,056
	Investment securities	34,912				34,912		45,570		45,570
	Level 2 inputs:
	Investment securities	225,426				225,523		241,765		241,872
	Accrued interest receivable	3,784				3,784		3,373		3,373
	Interest rate contracts	198				198		78		78
	Level 3 inputs:
	Loans and loans held for sale, net	1,005,490				1,008,133		951,647		957,643
	Purchased receivables, net	15,332				15,332		15,254		15,254
	Interest rate lock commitments	1,972				1,972		841		841
	Mortgage servicing rights	971				971		1,010		1,010
	Financial liabilities:
	Level 2 inputs:
	Deposits		$1,191,013				$1,191,365		$1,179,747		$1,180,136
	Securities sold under repurchase agreements	17,820				17,820		19,843		19,843
	Borrowings	22,569				22,716		26,304		26,485
	Accrued interest payable	52				52		18		18
	Interest rate contracts	597				597		158		158
	Level 3 inputs:
	RML earn-out liability	8,850				8,850		7,324		7,324
	Junior subordinated debentures	18,558				17,242		18,558		17,239
	Unrecognized financial instruments:
	Commitments to extend credit(1)		$220,008				$2,200		$219,349		$2,193
	Standby letters of credit(1)	5,963				60		6,004		60
	(1) Carrying amounts reflect the notional amount of credit exposure under these financial instruments.
	The following table sets forth the balances as of the periods indicated of assets measured at fair value on a recurring basis:
	(In Thousands)	Total				Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	March 31, 2015
	Assets:
	Available for sale securities
	U.S. Treasury and government sponsored entities		$200,255				$15,151		$185,104		$—
	Municipal securities	12,213				—		12,213		—
	U.S. Agency mortgage-backed securities	979				—		979		—
	Corporate bonds	39,307				17,743		21,564		—
Preferred stock	2,018				2,018		—		—
Total available for sale securities		$254,772				$34,912		$219,860		$—
Interest rate contracts		$198				$—		$198		$—
Interest rate lock commitments	1,972				—		—		1,972
Mortgage servicing rights	971				—		—		971
Total other assets		$3,141				$—		$198		$2,943
Liabilities:
Interest rate contracts		$597				$—		$597		$—
December 31, 2014
Assets:
Available for sale securities
U.S. Treasury and government sponsored entities		$226,190				$15,545		$210,645		$—
Municipal securities	12,124				—		12,124		—
U.S. Agency mortgage-backed securities	1,029				—		1,029		—
Corporate bonds	39,235				26,873		12,362		—
Preferred stock	3,152				3,152		—		—
Total available for sale securities		$281,730				$45,570		$236,160		$1,851
Interest rate contracts		$78				$—		$78		$—
Interest rate lock commitments	841				—		—		841
Mortgage servicing rights	1,010				—		—		1,010
Total other assets		$1,929				$—		$78		$1,851
Liabilities:
Interest rate contracts		$158				$—		$158		$—
As of and for the three months ending March 31, 2015 and 2014, no impairment or valuation adjustment was recognized for assets recognized at fair value on a nonrecurring basis, except for certain assets as shown in the following table.  For loans measured for impairment, the Company classifies fair value measurements using observable inputs, such as external appraisals, as Level 2 valuations in the fair value hierarchy, and unobservable inputs, such as in-house evaluations, as Level 3 valuations in the fair value hierarchy.
(In Thousands)	Total				Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total (gains) losses
March 31, 2015
Loans measured for impairment		$2,725				$—		$—		$2,725		$340
Other real estate owned	649				—		—		649		268
Total		$3,374				$—		$—		$3,374		$608
March 31, 2014
Loans measured for impairment		$807				$—		$—		$807		$271
Other real estate owned	—				—		—		—		—
Total		$807				$—		$—		$807		$271
Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs (Level 3)
The following table provides a description of the valuation technique, unobservable input, and qualitative information about the unobservable inputs for the Company’s assets and liabilities classified as Level 3 and measured at fair value on a nonrecurring basis at March 31, 2015:
Financial Instrument	Valuation Technique	Unobservable Input	Weighted Average Rate Range
Loans measured for impairment	In-house valuation of real estate; discounted cash flow	Discount rate	25% - 100%
		Cash flows	NA(1)
Other real estate owned	Fair value of collateral	Estimated selling and holding costs	7% - 25%
Interest rate lock commitment	External pricing model	Pull through rate	92.3	%
Mortgage servicing rights	Discounted cash flow	Constant prepayment rate	9.95% - 25.77%
		Discount rate	9.25% - 10%
RML earn-out liability	Discounted cash flow	Financial projections of mortgage operations	0.47% - 1.99%
(1)  Fair value of impaired collateral dependent loans was calculated using contractual cash flows for specific impaired loan.

Segment_Information

Segment Information	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Segment Information	Segment Information
	The Company operates two primary segments: Community Banking and Home Mortgage Lending. The Community Banking segment's principal business focus is the offering of loan and deposit products to business and consumer customers in its primary market areas. As of March 31, 2015, the Community Banking segment operated 14 branches throughout Alaska. The Home Mortgage Lending segment's principal business focus is the origination and sale of mortgage loans for 1-4 family residential properties.
	Prior to December 1, 2014, Home Mortgage Lending income was limited to equity in earnings from RML.
	Summarized financial information for the Company's reportable segments and the reconciliation to the consolidated financial results is shown in the following tables:
		Three Months Ended March 31, 2015
	(In Thousands)	Community Banking		Home Mortgage Lending			Consolidated
	Interest income		$13,990		$396			$14,386
	Interest expense	474		280			754
	Net interest income	13,516		116			13,632
	Provision (benefit) for loan losses	326		—			326
	Other operating income	3,252		7,283			10,535
	Other operating expense	13,324		5,137			18,461
	Income before provision for income taxes	3,118		2,262			5,380
	Provision for income taxes	813		934			1,747
	Net income	2,305		1,328			3,633
	Less: net income attributable to the noncontrolling interest	72		—			72
	Net income attributable to Northrim BanCorp		$2,233		$1,328			$3,561
		Three Months Ended March 31, 2014
	(In Thousands)	Community Banking		Home Mortgage Lending			Consolidated
	Interest income		$11,673		$—			$11,673
	Interest expense	440		—			440
	Net interest income	11,233		—			11,233
	Provision (benefit) for loan losses	—		—			—
	Other operating income (loss)	2,865		(131		)	2,734
	Other operating expense	9,967		—			9,967
	Income before provision for income taxes	4,131		(131		)	4,000
	Provision for income taxes	1,351		(54		)	1,297
	Net income (loss)	2,780		(77		)	2,703
	Less: net income attributable to the noncontrolling interest	45		—			45
	Net income (loss) attributable to Northrim BanCorp		$2,735		($77	)		$2,658
	31-Mar-15
	(In Thousands)	Community Banking		Home Mortgage Lending			Consolidated
	Total assets		$1,369,167		$78,817			$1,447,984
	Loans held for sale		$—		$61,873			$61,873
	Borrowings		$2,153		$20,416			$22,569
	31-Dec-14
	(In Thousands)	Community Banking		Home Mortgage Lending			Consolidated
	Total assets		$1,391,862		$57,487			$1,449,349
	Loans held for sale		$—		$43,866			$43,866
	Borrowings		$2,164		$24,140			$26,304

Significant_Accounting_Policie1

Significant Accounting Policies and Recent Accounting Pronouncements (Policies)	3 Months Ended
	Mar. 31, 2015
Accounting Policies [Abstract]
Recent Accounting Pronouncements	In January 2014, the Financial Accounting Standards Board ("FASB") issued ASU No. 2014-01, Accounting for Investments in Qualified Affordable Housing Projects. ASU 2014-01 permits an entity to make an accounting policy election to account for their investments in qualified affordable housing projects using the proportional amortization method if certain conditions are met. Under the proportional amortization method, an entity amortizes the initial cost of the investment in proportion to the tax credits and other tax benefits received and recognizes the net investment performance in the income statement as a component of income tax expense (benefit). The amendments are effective for annual and interim reporting periods beginning on or after December 15, 2014 and should be applied prospectively. The Company adopted ASU 2014-01 in its consolidated financial statements as of January 1, 2015. As a result, amortization expense related to the Company's investments in low income housing tax credit partnerships has been included in the line item entitled "Provision for income taxes" in the Consolidated Statements of Income for all periods presented.
	In February 2015, the Financial Accounting Standards Board (“FASB”) issued ASU 2015-02, Amendments to the Consolidation Analysis (“ASU 2015-02”). The amendments to the Codification in ASU 2015-02 affect reporting entities that are required to evaluate whether they should consolidate certain legal entities. The amendments in this update affect the following areas: 1) the effect of related parties on the primary beneficiary determination, 2) evaluating fees paid to a decision maker or a service provider as a variable interest, 3) the effect of fee arrangements on the primary beneficiary determination, and 4) certain investment funds. This ASU is effective for the Company’s financial statements for annual and interim periods beginning on or after December 15, 2015, and must be applied prospectively. The Company does not believe that the adoption of this standard will have a material impact on the Company’s consolidated financial position or results of operations.
	In April 2015, the Financial Accounting Standards Board (“FASB”) issued ASU 2015-03, Simplifying the Presentation of Debt Issuance Costs (“ASU 2015-03”). The amendments to the Codification in ASU 2015-03 identify, evaluate, and improve areas of generally accepted accounting principles (GAAP) for which cost and complexity can be reduced while maintaining or improving the usefulness of the information provided to users of financial statements. To simplify presentation of debt issuance costs, the amendments in this Update require that debt issuance costs related to a recognized debt liability be presented in the balance sheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance for debt issuance costs are not affected by the amendments in this Update. This ASU is effective for the Company’s financial statements for annual and interim periods beginning on or after December 15, 2015, and must be applied prospectively. The Company does not believe that the adoption of this standard will have a material impact on the Company’s consolidated financial position or results of operations.

Business_Combinations_Tables

Business Combinations (Tables)	3 Months Ended
	Mar. 31, 2015
Business Combinations [Abstract]
Schedule of Business Acquisitions by Acquisition	A summary of the net assets acquired and the estimated fair value adjustments of Alaska Pacific are presented below:
			Alaska Pacific
	(In Thousands)		April 1, 2014
	Cost basis net assets			$14,733
	Cash payment made		(6,423		)
	Common stock issued		(7,446		)
	Fair value adjustments:
	Net loans		(1,137		)
	Premises and equipment		547
	Other intangible assets		623
	Mortgage servicing rights		(119		)
	Deposits		(844		)
	Other		236
	Bargain purchase gain			$170
	A summary of the net assets acquired and the estimated fair value adjustments of RML are presented below:
			RML
	(In Thousands)		December 1, 2014
	Cost basis net assets			$11,915
	Cash payment made		(18,240		)
	Cash surrender value of life insurance paid		(3,896		)
	Liability for future earn out payments		(7,318		)
	Fair value adjustments:
	Loans		(360		)
	Trade name intangible		950
	Rate lock derivative asset		960
	Investment in Homestate Mortgage, LLC		1,490
	Other		(311		)
	Goodwill			($14,810	)
Assets Acquired and Liabilities Assumed	A summary of assets acquired and liabilities assumed at their estimated fair values are presented below:
			Alaska Pacific
	(In Thousands)		April 1, 2014
	Assets Acquired:
	Cash and equivalents			$12,956
	Investment securities		7,240
	Loans		138,432
	Premises and equipment		3,436
	Other intangibles		623
	Mortgage servicing rights		1,170
	Other real estate owned		1,709
	Other assets		1,645
	Total assets acquired			$167,211
	Liabilities Assumed:
	Deposits			$151,438
	Other liabilities		1,734
	Total liabilities assumed			$153,172
	A summary of assets acquired and liabilities assumed at their estimated fair values are presented below:
			RML
	(In Thousands)		December 1, 2014
	Assets Acquired:
	Cash and equivalents			$10,828
	Net loans		41,304
	Premises and equipment		255
	Trade name intangible		950
	Rate lock derivative asset		960
	Investment in Homestate Mortgage LLC		3,000
	Other real estate owned		270
	Other assets		10,291
	Total assets acquired			$67,858
	Liabilities Assumed:
	Borrowings			$37,541
	Other liabilities		6,625
	Total liabilities assumed			$44,166
Schedule of Loans Acquired	Alaska Pacific purchased loans not subject to the requirements of FASB ASC  310-30 Loans and Debt Securities Acquired with Deteriorated Credit Quality ("ASC 310-30") are presented below at acquisition:
	(In Thousands)		April 1, 2014
	Contractually required principal payments			$133,921
	Purchase adjustment for credit, interest rate, and liquidity		612
	Fair value of purchased non-credit impaired loans			$134,533
Loans Acquired with Deteriorating Quality	Purchased credit impaired loans at acquisition are presented below:
	(In Thousands)		April 1, 2014
	Contractually required principal payments			$7,553
	Nonaccretable difference		(3,654		)
	Fair value of purchased credit impaired loans			$3,899
Pro Forma Information	The following table presents unaudited combined pro forma results of operations for the three month periods ended March 31, 2014 as if the acquisition of Alaska Pacific and RML had occurred on January 1, 2014. The proforma results have been prepared for comparative purposes only and are not necessarily indicative of the results that would have been obtained had the acquisitions actually occurred on January 1, 2014.
	(In Thousands, except earnings per share data)		Three Months Ended March 31, 2014
						Alaska							Pro Forma				Pro Forma
			Company			Pacific1			RML2				Adjustments				Combined
	Net interest and other income			$13,967			$2,095			$4,143		3		$134		4		$20,339
	Net income attributable to Northrim BanCorp, Inc.		2,658			(1,282		)	(426		)		3,218			5	4,168
	Earnings Per Share, Basic			$0.41														$0.61
	Earnings Per Share, Diluted			$0.40														$0.60
	Weighted Average Shares Outstanding, Basic		6,537,652														6,827,864
	Weighted Average Shares Outstanding, Diluted		6,629,330														6,919,542
	1 Alaska Pacific represents results from January 1 to March 31 for 2014.
	2 RML represents results from January 1 to March 31.
	3 2014 amount is comprised of net interest income of $67,000 and $4.1 million of other income.
	4 Amount of amortization/ accretion of the fair value adjustments on loans and certificates of deposit for Alaska Pacific and amount of accretion of the fair value adjustments on loans and income recognized under the equity method prior to the December 2014 acquisition for RML.
	5 Amount of amortization/accretion of the fair value adjustments on loans and certificates of deposit, bargain purchase gain, amortization of cored deposit intangible, and the change in the provision for income taxes for Alaska Pacific and amount of accretion of the fair value adjustments on loans, income recognized under the equity method, gain on acquisition, earn out accretion, and the change in the provision for income taxes for RML.
	The proforma results have been prepared for comparative purposes only and are not necessarily indicative of the results that would have been obtained had the acquisition actually occurred on January 1, 2014.
	(In Thousands, except earnings per share data)		Three Months Ended March 31, 2014
										Pro Forma				Pro Forma
			Company			RML1				Adjustments				Combined
	Net interest and other income			$13,967			$4,143		2		$144		3		$18,254
	Net income attributable to Northrim BanCorp, Inc.		2,658			(426		)		3,072			4	5,304
	Earnings Per Share, Basic			$0.41											$0.81
	Earnings Per Share, Diluted			$0.40											$0.80
	Weighted Average Shares Outstanding, Basic		6,537,652											6,537,652
	Weighted Average Shares Outstanding, Diluted		6,629,330											6,629,330
	1 RML represents results from January 1 to March 31.
	2 2014 amount is comprised of net interest income of $67,000 and $4.1 million of other income.
	3 Amount of accretion of the fair value adjustments on loans and income recognized under the equity method prior to the December 2014 acquisition.
	4 Amount of accretion of the fair value adjustments on loans, income recognized under the equity method, gain on acquisition, earn out accretion, and the change in the provision for income taxes.
	The following table presents unaudited pro forma results of operations for the three month periods ended March 31, 2014 as if the acquisition of Alaska Pacific had occurred on January 1, 2014. The proforma results have been prepared for comparative purposes only and are not necessarily indicative of the results that would have been obtained had the acquisition actually occurred on January 1, 2014.
	(In Thousands, except earnings per share data)		Three Months Ended March 31, 2014
									Pro Forma				Pro Forma
			Company			Alaska Pacific1			Adjustments				Combined
	Net interest and other income			$13,967			$2,095			($10	)	2		$16,052
	Net income attributable to Northrim BanCorp, Inc.		2,658			(1,282		)	146			3	1,522
	Earnings Per Share, Basic			$0.41										$0.22
	Earnings Per Share, Diluted			$0.40										$0.22
	Weighted Average Shares Outstanding, Basic		6,537,652										6,827,864
	Weighted Average Shares Outstanding, Diluted		6,629,330										6,919,542
	1 Alaska Pacific represents results from January 1 to March 31 for 2014.
	2 Amount of amortization/ accretion of the fair value adjustments on loans and certificates of deposit.
	3 Amount of amortization/accretion of the fair value adjustments on loans and certificates of deposit, bargain purchase gain, amortization of cored deposit intangible, and the change in the provision for income taxes.
Contingent Consideration Terms	Per the purchase agreement, the earn-out payments are calculated as follows:
	First tier earn-out payment	Adjusted pretax earnings greater than $1,000,000 and less than or equal to $2,000,000	Payment will be calculated as product of amount of adjusted pretax earnings times 40%
	Second tier earn-out payment	Adjusted pretax earnings greater than $2,000,000 and less than or equal to $3,000,000	The first tier earn-out payment, plus the product of amount of adjusted pretax earnings greater than $2,000,000 and less than $3,000,000 times 50%
	Third tier earn-out payment	Adjusted pretax earnings greater than $3,000,000 and less than or equal to $4,000,000	The first tier plus the second tier earn-out payment, plus the product of amount of adjusted pretax earnings greater than $3,000,000 and less than $4,000,000 times 70%
	Fourth tier earn- out payment	Adjusted pretax earnings greater than $4,000,000 and less than or equal to $6,000,000	The first, second and third tier earn-out payment, plus the product of amount of adjusted pretax earnings greater than $4,000,000 and less than $6,000,000 times 85%
	Fifth tier earn-out payment	Adjusted pretax earnings greater than $6,000,000	The first, second, third and fourth tier earn-out payment, plus the product of amount of adjusted pretax earnings greater than $6,000,000 times 55%

Investment_Securities_Tables

Investment Securities (Tables)	3 Months Ended
	Mar. 31, 2015
Marketable Securities [Abstract]
Summary Of Investment Security Carrying and Fair Value	The carrying values and approximate fair values of investment securities at the periods indicated are presented below:
	(In Thousands)	Amortized Cost			Gross Unrealized Gains				Gross Unrealized Losses			Fair Value
	March 31, 2015
	Securities available for sale
	U.S. Treasury and government sponsored entities		$199,754			$548				$47			$200,255
	Municipal securities	11,962			252				1			12,213
	U.S. Agency mortgage-backed securities	976			5				2			979
	Corporate bonds	38,895			412				—			39,307
	Preferred stock	1,992			26				—			2,018
	Total securities available for sale		$253,579			$1,243				$50			$254,772
	Securities held to maturity
	Municipal securities		$2,199			$97				$—			$2,296
	Total securities held to maturity		$2,199			$97				$—			$2,296
	December 31, 2014
	Securities available for sale
	U.S. Treasury and government sponsored entities		$226,624			$105				$539			$226,190
	Municipal securities	11,843			285				4			12,124
	U.S. Agency mortgage-backed securities	1,024			6				1			1,029
	Corporate bonds	38,820			415				—			39,235
	Preferred stock	2,999			153				—			3,152
	Total securities available for sale		$281,310			$964				$544			$281,730
	Securities held to maturity
	Municipal securities		$2,201			$107				$—			$2,308
	Total securities held to maturity		$2,201			$107				$—			$2,308
Unrealized Gain (Loss) on Investments	Gross unrealized losses on investment securities and the fair value of the related securities, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at March 31, 2015 and December 31, 2014 were as follows:
		Less Than 12 Months					More Than 12 Months					Total
	(In Thousands)	Fair Value		Unrealized Losses			Fair Value			Unrealized Losses		Fair Value		Unrealized Losses
	March 31, 2015:
	Securities Available for Sale
	U.S. Treasury and government sponsored entities		$42,883		$47			$—			$—		$42,883		$47
	Municipal Securities	208		1			—			—		208		1
	Mortgage-backed Securities	172		2			—			—		172		2
	Total		$43,263		$50			$—			$—		$43,263		$50
	December 31, 2014:
	Securities Available for Sale
	U.S. Treasury and government sponsored entities		$165,004		$539			$—			$—		$165,004		$539
	Municipal Securities	567		4			—			—		567		4
	Mortgage-backed Securities	117		1			—			—		117		1
	Total		$165,688		$544			$—			$—		$165,688		$544
Schedule Of Amortized Cost And Fair Value By Contractual Maturity	The amortized cost and fair values of debt securities at March 31, 2015, are distributed by contractual maturity as shown below.  Expected maturities may differ from contractual maturities because issuers may have the right to call or prepay obligations with or without call or prepayment penalties.  Although preferred stock has no stated maturity, it is aggregated in the calculation of weighted average yields presented below in the category of investments that mature in ten years or more.
	(In  Thousands)	Amortized Cost			Fair Value				Weighted Average Yield
	US Treasury and government sponsored entities
	1-5 years		$199,754			$200,255			1.13	%
	Total		$199,754			$200,255			1.13	%
	U.S. Agency mortgage-backed securities
	1-5 years		$50			$50			2.29	%
	5-10 years	289			289				3.26	%
	Over 10 years	637			640				2.91	%
	Total		$976			$979			2.98	%
	Corporate bonds
	Within 1 year		$736			$738			0.91	%
	1-5 years	36,159			36,552				1.45	%
	5-10 years	2,000			2,017				1.07	%
	Total		$38,895			$39,307			1.42	%
	Preferred stock
	Over 10 years		$1,992			$2,018			4.71	%
	Total		$1,992			$2,018			4.71	%
	Municipal securities
	Within 1 year		$2,091			$2,096			0.64	%
	1-5 years	7,142			7,321				2.67	%
	5-10 years	4,928			5,092				4.54	%
	Total		$14,161			$14,509			3.02	%
Schedule Of Available-For-Sale Securities Proceeds, Gains, And Losses	The proceeds and resulting gains and losses, computed using specific identification, from sales of investment securities for the three months ending March 31, 2015 and 2014 respectively, are as follows:
	(In Thousands)	Proceeds			Gross Gains				Gross Losses
	2015
	Available for sale securities		$1,621			$114				$—
	2014
	Available for sale securities		$2,098			$97				$—
Summary Of Interest Income On Available-For-Sale Investment Securities	A summary of interest income for the three months ending March 31, 2015 and 2014 on available for sale investment securities is as follows:
	(In Thousands)	2015			2014
	US Treasury and government sponsored entities		$618			$335
	U.S. Agency mortgage-backed securities	7			—
	Other	175			258
	Total taxable interest income		$800			$593
	Municipal securities		$85			$137
	Total tax-exempt interest income		$85			$137
	Total		$885			$730

Loans_Tables

Loans (Tables)	3 Months Ended
	Mar. 31, 2015
Loans [Abstract]
Loan Portfolio Segmented By Risk Class	The following table presents total portfolio loans by portfolio segment and class of financing receivable, based on our risk classification criteria:
	(In Thousands)	Commercial				Real estate construction one-to-four family				Real estate construction other				Real estate term owner occupied				Real estate term non-owner occupied				Real estate term other		Consumer secured by 1st deeds of trust			Consumer other		Total
	March 31, 2015
	AQR Pass		$307,514				$41,272				$92,382				$103,593				$291,821				$39,716		$29,833			$30,242		$936,373
	AQR Special Mention	11,601				—				—				5,780				2,094				—		398			43		19,916
	AQR Substandard	5,318				—				—				594				1,668				433		643			81		8,737
	AQR Doubtful	—				—				—				—				—				—		—			—		—
	AQR Loss	—				—				—				—				—				—		—			—		—
	Subtotal		$324,433				$41,272				$92,382				$109,967				$295,583				$40,149		$30,874			$30,366		$965,026
	Less: Unearned origination fees, net of origination costs																												(4,462		)
	Total loans																													$960,564
	December 31, 2014
	AQR Pass		$291,020				$34,651				$91,195				$103,049				$282,774				$36,705		$31,118			$31,399		$901,911
	AQR Special Mention	11,618				—				—				5,817				2,095				39		396			47		20,012
	AQR Substandard	3,905				191				—				606				1,747				150		486			47		7,132
	AQR Doubtful	—				—				—				—				—				—		—			—		—
	AQR Loss	—				—				—				—				—				—		—			—		—
	Subtotal		$306,543				$34,842				$91,195				$109,472				$286,616				$36,894		$32,000			$31,493		$929,055
	Less: Unearned origination fees, net of origination costs																												(4,551		)
	Total loans																													$924,504
Nonaccrual Loans By Segment	Nonaccrual loans at the periods indicated, by segment, are presented below:
	(In  Thousands)	March 31, 2015				December 31, 2014
	Commercial		$2,538				$2,031
	Real estate construction one-to-four family	—				191
	Real estate construction other	—				—
	Real estate term owner occupied	127				135
	Real estate term non-owner occupied	1,668				1,746
	Real estate term other	—				39
	Consumer secured by 1st deeds of trust	477				485
	Consumer other	—				47
	Total		$4,810				$4,674
Past Due Loans And Nonaccrual Loans	Past due loans and nonaccrual loans at the periods indicated are presented below by loan class:
	(In Thousands)	30-59 Days				60-89 Days				Greater Than				Nonaccrual				Total Past				Current		Total
		Past Due				Past Due				90 Days								Due
		Still				Still				Still
		Accruing				Accruing				Accruing
	March 31, 2015
	AQR Pass		$1,246				$55				$—				$—				$1,301				$935,072		$936,373
	AQR Special Mention	49				—				—				—				49				19,867		19,916
	AQR Substandard	166				565				—				4,810				5,541				3,196		8,737
	AQR Doubtful	—				—				—				—				—				—		—
	AQR Loss	—				—				—				—				—				—		—
	Subtotal		$1,461				$620				$—				$4,810				$6,891				$958,135		$965,026
	Less: Unearned origination fees,  net of origination costs																							(4,462		)
	Total																								$960,564
	December 31, 2014
	AQR Pass		$696				$545				$—				$—				$1,241				$900,670		$901,911
	AQR Special Mention	—				—				—				—				—				20,012		20,012
	AQR Substandard	40				—				—				4,674				4,714				2,418		7,132
	AQR Doubtful	—				—				—				—				—				—		—
	AQR Loss	—				—				—				—				—				—		—
	Subtotal		$736				$545				$—				$4,674				$5,955				$923,100		$929,055
	Less: Unearned origination fees,  net of origination costs																							(4,551		)
	Total																								$924,504
Impaired Loans	The following table presents information about impaired loans by class as of the periods indicated:
	(In Thousands)	Recorded Investment				Unpaid Principal Balance				Related Allowance
	March 31, 2015
	With no related allowance recorded
	Commercial - AQR special mention		$166				$166				$—
	Commercial - AQR substandard	2,729				2,874				—
	Real estate construction other - AQR pass	755				755				—
	Real estate term owner occupied- AQR pass	498				498				—
	Real estate term owner occupied- AQR special mention	271				271				—
	Real estate term owner occupied- AQR substandard	549				549				—
	Real estate term non-owner occupied- AQR pass	543				543				—
	Real estate term non-owner occupied- AQR special mention	2,087				2,087				—
	Real estate term non-owner occupied- AQR substandard	1,668				1,668				—
	Real estate term other - AQR substandard	149				149				—
	Consumer secured by 1st deeds of trust - AQR pass	81				81				—
	Consumer secured by 1st deeds of trust - AQR substandard	605				618				—
	Subtotal		$10,101				$10,259				$—
	With an allowance recorded
	Commercial - AQR substandard		$2,442				$2,442				$361
	Real estate term other - AQR substandard	284				284				55
	Subtotal		$2,726				$2,726				$416
	Commercial - AQR special mention		$166				$166				$—
	Commercial - AQR substandard	5,171				5,316				361
	Real estate construction other - AQR pass	755				755				—
	Real estate term owner-occupied - AQR pass	498				498				—
	Real estate term owner-occupied - AQR special mention	271				271				—
	Real estate term owner-occupied - AQR substandard	549				549				—
	Real estate term non-owner occupied - AQR pass	543				543				—
	Real estate term non-owner occupied - AQR special mention	2,087				2,087				—
	Real estate term non-owner occupied - AQR substandard	1,668				1,668				—
	Real estate term other - AQR substandard	433				433				55
	Consumer secured by 1st deeds of trust - AQR pass	81				81				—
	Consumer secured by 1st deeds of trust - AQR substandard	605				618				—
	Total		$12,827				$12,985				$416
	(In Thousands)	Recorded Investment				Unpaid Principal Balance				Related Allowance
	December 31, 2014
	With no related allowance recorded
	Commercial - AQR special mention		$170				$170				$—
	Commercial - AQR substandard	3,000				3,045				—
	Real estate construction one-to-four family - AQR special mention	191				191				—
	Real estate construction other - AQR pass	772				772				—
	Real estate term owner occupied - AQR pass	501				501				—
	Real estate term owner occupied - AQR special mention	273				273				—
	Real estate term owner occupied - AQR substandard	558				558				—
	Real estate term non-owner occupied - AQR pass	549				549				—
	Real estate term non-owner occupied - AQR special mention	2,088				2,088				—
	Real estate term non-owner occupied - AQR substandard	1,709				1,709				—
	Real estate term other - AQR substandard	150				150				—
	Consumer secured by 1st deeds of trust - AQR pass	82				82				—
	Consumer secured by 1st deeds of trust - AQR special mention	448				461				—
	Subtotal		$10,491				$10,549				$—
	With an allowance recorded
	Commercial - AQR substandard		$806				$806				$75
	Subtotal		$806				$806				$75
	Commercial - AQR special mention		$170				$170				$—
	Commercial - AQR substandard	3,806				3,851				75
	Real estate construction one-to-four family - AQR special mention	191				191				—
	Real estate construction other - AQR pass	772				772				—
	Real estate term owner occupied - AQR pass	501				501				—
	Real estate term owner occupied - AQR special mention	273				273				—
	Real estate term owner occupied - AQR substandard	558				558				—
	Real estate term non-owner occupied - AQR pass	549				549				—
	Real estate term non-owner occupied - AQR special mention	2,088				2,088				—
	Real estate term non-owner occupied - AQR substandard	1,709				1,709				—
Real estate term other - AQR substandard	150				150				—
Consumer secured by 1st deeds of trust - AQR pass	82				82				—
Consumer secured by 1st deeds of trust - AQR special mention	448				461				—
Total		$11,297				$11,355				$75
The unpaid principal balance included in the table above represents the recorded investment at the dates indicated, plus amounts charged off for book purposes.
The following table summarizes our average recorded investment and interest income recognized on impaired loans for the three month periods ended March 31, 2015 and 2014, respectively:
Three Months Ended March 31,	2015								2014
(In Thousands)	Average Recorded Investment			Interest Income Recognized				Average Recorded Investment				Interest Income Recognized
With no related allowance recorded
Commercial - AQR special mention		$168				$3				$132				$1
Commercial - AQR substandard	3,040				29				393				4
Real estate construction one-to-four family - AQR special mention	—				—				353				6
Real estate construction other - AQR pass	763				30				—				—
Real estate construction other - AQR special mention	—				—				823				30
Real estate term owner occupied- AQR pass	499				12				511				11
Real estate term owner occupied- AQR special mention	272				5				281				6
Real estate term owner occupied- AQR substandard	640				9				869				13
Real estate term non-owner occupied- AQR pass	546				19				618				19
Real estate term non-owner occupied- AQR special mention	2,175				44				979				15
Real estate term non-owner occupied- AQR substandard	2,371				—				—				—
Real estate term other - AQR substandard	150				3				154				3
Consumer secured by 1st deeds of trust - AQR pass	81				1				87				1
Consumer secured by 1st deeds of trust - AQR substandard	677				—				—				—
Consumer other - AQR substandard	—				—				61				—
Subtotal		$11,382				$155				$5,261				$109
With an allowance recorded
Commercial - AQR special mention		$—				$—				$185				$6
Commercial - AQR substandard	2,245				—				600				—
Real estate term other - AQR substandard	284				—				—				—
Consumer secured by 1st deeds of trust - AQR substandard	—				—				185				—
Subtotal		$2,529				$—				$970				$6
Total
Commercial - AQR special mention		$168				$3				$317				$7
Commercial - AQR substandard	5,285				29				993				4
Real estate construction one-to-four family - AQR special mention	—				—				353				6
Real estate construction other - AQR pass	763				30				—				—
Real estate construction other - AQR special mention	—				—				823				30
Real estate term owner-occupied - AQR pass	499				12				511				11
Real estate term owner-occupied - AQR special mention	272				5				281				6
Real estate term owner-occupied - AQR substandard	640				9				869				13
Real estate term non-owner occupied - AQR pass	546				19				618				19
Real estate term non-owner occupied - AQR special mention	2,175				44				979				15
Real estate term non-owner occupied - AQR substandard	2,371				—				—				—
Real estate term other - AQR substandard	434				3				154				3
Consumer secured by 1st deeds of trust - AQR pass	81				1				87				1
Consumer secured by 1st deeds of trust - AQR substandard	677				—				185				—
Consumer other - AQR substandard	—				—				61				—
Total Impaired Loans		$13,911				$155				$6,231				$115
Restructured Loans	The following table presents newly restructured loans that occurred during the three months ended March 31, 2015:
		Accrual Status				Nonaccrual Status				Total Modifications
	(In Thousands)
	New Troubled Debt Restructurings
	Commercial - AQR substandard		$150				$1,204				$1,354
	Subtotal		$150				$1,204				$1,354
	Existing Troubled Debt Restructurings	5,638				2,041				7,679
	Total		$5,788				$3,245				$9,033
	The following table presents newly restructured loans that occurred during the three months ended March 31, 2015, by concession (terms modified):
				March 31, 2015
		Number of Contracts		Rate Modification				Term Modification				Payment Modification				Combination Modification				Total Modifications
	(In Thousands)
	Pre-Modification Outstanding Recorded Investment:
	Commercial - AQR substandard	2			$—				$—				$—				$900				$900
	Total	2			$—				$—				$—				$900				$900
	Post-Modification Outstanding Recorded Investment:
	Commercial - AQR substandard	2			$—				$—				$—				$1,354				$1,354
	Total	2			$—				$—				$—				$1,354				$1,354
Troubled debt restructurings that subsequently defaulted	The loans in the following table are past due, and they are nonaccrual loans. The following table presents TDRs that occurred during the last twelve months that subsequently defaulted, for the periods ending March 31, 2015 and 2014, respectively:
				March 31, 2015						March 31, 2014
		Number of Contracts		Recorded Investment				Number of Contracts		Recorded Investment
	(In  Thousands)
	Troubled Debt Restructurings that Subsequently Defaulted:
	Real estate construction one-to-four family - AQR special mention	—			$—			1			$353
	Total	—			$—			1			$353

Allowance_for_Loan_Losses_Tabl

Allowance for Loan Losses (Tables)	3 Months Ended
	Mar. 31, 2015
Loans and Leases Receivable, Allowance [Abstract]
Allowance For Loan Losses	The following tables detail activity in the Allowance for the periods indicated:
	Three Months Ended March 31,	Commercial			Real estate construction one-to-four family			Real estate construction other			Real estate term owner occupied			Real estate term non-owner occupied			Real estate term other			Consumer secured by 1st deed of trust			Consumer other			Unallocated			Total
	2015
	Balance, beginning of period		$5,643			$644			$1,653			$1,580			$4,704			$656			$285			$410			$1,148			$16,723
	Charge-Offs	(107		)	—			—			—			—			(81		)	—			—			—			(188		)
	Recoveries	67			—			—			—			—			17			—			2			—			86
	Provision (benefit)	488			113			10			(10		)	90			164			(11		)	(10		)	(508		)	326
	Balance, end of period		$6,091			$757			$1,663			$1,570			$4,794			$756			$274			$402			$640			$16,947
	Balance, end of period:
	Individually evaluated
	for impairment		$361			$—			$—			$—			$—			$55			$—			$—			$—			$416
	Balance, end of period:
	Collectively evaluated
	for impairment		$5,730			$757			$1,663			$1,570			$4,794			$701			$274			$402			$640			$16,531
	2014
	Balance, beginning of period		$5,779			$557			$539			$1,583			$4,297			$537			$322			$390			$2,278			$16,282
	Charge-Offs	(320		)	—			—			—			—			—			—			(9		)	—			(329		)
	Recoveries	54			12			—			—			—			—			—			13			—			79
	Provision (benefit)	144			(56		)	84			(176		)	(4		)	118			(9		)	(10		)	(91		)	—
	Balance, end of period		$5,657			$513			$623			$1,407			$4,293			$655			$313			$384			$2,187			$16,032
	Balance, end of period:
	Individually evaluated
	for impairment		$277			$—			$—			$—			$—			$—			$5			$—			$—			$282
	Balance, end of period:
	Collectively evaluated
	for impairment		$5,380			$513			$623			$1,407			$4,293			$655			$308			$384			$2,187			$15,750
Recorded Investment Segregated By Amounts Individually Or Collectively In Allowance For Loan Losses	The following is a detail of the recorded investment in the loan portfolio, segregated by amounts evaluated individually or collectively in the Allowance at the periods indicated:
	(In Thousands)	Commercial				Real estate construction one-to-four family				Real estate construction other				Real estate term owner occupied				Real estate term non-owner occupied				Real estate term other				Consumer secured by 1st deed of trust				Consumer other		Total
	March 31, 2015
	Balance, end of period		$324,433				$41,272				$92,382				$109,967				$295,583				$40,149				$30,874				$30,366		$965,026
	Balance, end of period:
	Individually evaluated
	for impairment		$5,337				$—				$755				$1,318				$4,298				$433				$686				$—		$12,827
	Balance, end of period:
	Collectively evaluated
	for impairment		$319,096				$41,272				$91,627				$108,649				$291,285				$39,716				$30,188				$30,366		$952,199
	December 31, 2014
	Balance, end of period		$306,543				$34,842				$91,195				$109,472				$286,616				$36,894				$32,000				$31,493		$929,055
	Balance, end of period:
	Individually evaluated
	for impairment		$3,976				$191				$772				$1,332				$4,346				$150				$530				$—		$11,297
	Balance, end of period:
	Collectively evaluated
	for impairment		$302,567				$34,651				$90,423				$108,140				$282,270				$36,744				$31,470				$31,493		$917,758
Balance Of The Allowance Segregated By Segment And Class	The following represents the balance of the Allowance for the periods indicated segregated by segment and class:
	(In Thousands)	Total			Commercial			Real estate construction 1-4 family			Real estate construction other			Real estate term owner occupied			Real estate term non-owner occupied			Real estate term other			Consumer secured by 1st deeds of trust			Consumer other			Unallocated
	March 31, 2015
	Individually evaluated for impairment
	AQR Substandard		$416			$361			$—			$—			$—			$—			$55			$—			$—			$—
	Collectively evaluated for impairment:
	AQR Pass	15,065			5,128			757			1,663			1,379			4,794			701			267			376			—
	AQR Special Mention	793			594			—			—			191			—			—			7			1			—
	AQR Substandard	33			8			—			—			—			—			—			—			25			—
	Unallocated	640			—			—			—			—			—			—			—			—			640
			$16,947			$6,091			$757			$1,663			$1,570			$4,794			$756			$274			$402			$640
	December 31, 2014
	Individually evaluated for impairment:
	AQR Substandard		$75			$75			$—			$—			$—			$—			$—			$—			$—			$—
	Collectively evaluated for impairment:
	AQR Pass	14,643			4,938			644			1,653			1,382			4,703			651			278			394			—
	AQR Special Mention	832			621			—			—			198			—			5			7			1			—
	AQR Substandard	25			9			—			—			—			1			—			—			15			—
	Unallocated	1,148			—			—			—			—			—			—			—			—			1,148
			$16,723			$5,643			$644			$1,653			$1,580			$4,704			$656			$285			$410			$1,148

Purchased_Receivables_Tables

Purchased Receivables (Tables)	3 Months Ended
	Mar. 31, 2015
Accounts, Notes, Loans and Financing Receivable [Line Items]
Summary Of Components Of Net Purchased Receivables	The following table summarizes the components of net purchased receivables for the periods indicated:
	(In Thousands)	March 31, 2015			December 31, 2014
	Purchased receivables		$15,597			$15,543
	Reserve for purchased receivable losses	(265		)	(289		)
	Total		$15,332			$15,254
Allowance on Net Purchased Receivables	The following tables detail activity in the Allowance for the periods indicated:
	Three Months Ended March 31,	Commercial			Real estate construction one-to-four family			Real estate construction other		Real estate term owner occupied			Real estate term non-owner occupied			Real estate term other			Consumer secured by 1st deed of trust			Consumer other			Unallocated			Total
	2015
	Balance, beginning of period		$5,643			$644			$1,653		$1,580			$4,704			$656			$285			$410			$1,148			$16,723
	Charge-Offs	(107		)	—			—		—			—			(81		)	—			—			—			(188		)
	Recoveries	67			—			—		—			—			17			—			2			—			86
	Provision (benefit)	488			113			10		(10		)	90			164			(11		)	(10		)	(508		)	326
	Balance, end of period		$6,091			$757			$1,663		$1,570			$4,794			$756			$274			$402			$640			$16,947
	Balance, end of period:
	Individually evaluated
	for impairment		$361			$—			$—		$—			$—			$55			$—			$—			$—			$416
	Balance, end of period:
	Collectively evaluated
	for impairment		$5,730			$757			$1,663		$1,570			$4,794			$701			$274			$402			$640			$16,531
	2014
	Balance, beginning of period		$5,779			$557			$539		$1,583			$4,297			$537			$322			$390			$2,278			$16,282
	Charge-Offs	(320		)	—			—		—			—			—			—			(9		)	—			(329		)
	Recoveries	54			12			—		—			—			—			—			13			—			79
	Provision (benefit)	144			(56		)	84		(176		)	(4		)	118			(9		)	(10		)	(91		)	—
	Balance, end of period		$5,657			$513			$623		$1,407			$4,293			$655			$313			$384			$2,187			$16,032
	Balance, end of period:
	Individually evaluated
	for impairment		$277			$—			$—		$—			$—			$—			$5			$—			$—			$282
	Balance, end of period:
	Collectively evaluated
	for impairment		$5,380			$513			$623		$1,407			$4,293			$655			$308			$384			$2,187			$15,750
Purchased Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance on Net Purchased Receivables	The following table sets forth information regarding changes in the purchased receivable reserve for the three month periods ending March 31, 2015 and 2014, respectively:
		Three Months Ended March 31,
	(In Thousands)	2015			2014
	Balance at beginning of period		$289			$273
	Charge-offs	—			—
	Recoveries	30			—
	Charge-offs net of recoveries	30			—
	Reserve for (recovery from) purchased receivables	(54		)	(37		)
	Balance at end of period		$265			$236

Derivatives_Tables

Derivatives (Tables)	3 Months Ended
	Mar. 31, 2015
Derivative Instruments and Hedging Activities Disclosure [Abstract]
Schedule of Derivative Instruments	The following table presents the fair value of derivatives not designated as hedging instruments at March 31, 2015 and December 31, 2014:
	(In Thousands)	Asset Derivatives
				March 31, 2015		December 31, 2014
		Balance Sheet Location		Fair Value		Fair Value
	Interest rate contracts	Other assets			$198		$78
	Interest rate lock commitments	Other assets		1,972		841
	Total				$2,170		$919
	(In Thousands)	Liability Derivatives
				March 31, 2015		December 31, 2014
		Balance Sheet Location		Fair Value		Fair Value
	Interest rate contracts	Other liabilities			$597		$158
Derivative Instruments, Gain (Loss)	The following table presents the gains of derivatives not designated as hedging instruments at March 31, 2015:
	(In Thousands)	Income Statement Location	March 31, 2015
	Interest rate contracts	Mortgage banking income			$787

Fair_Value_of_Assets_and_Liabi1

Fair Value of Assets and Liabilities (Tables)	3 Months Ended
	Mar. 31, 2015
Fair Value Disclosures [Abstract]
Schedule Of Estimated Fair Values	Estimated fair values as of the periods indicated are as follows:
		March 31, 2015						December 31, 2014
	(In Thousands)	Carrying Amount				Fair Value		Carrying Amount		Fair  Value
	Financial assets:
	Level 1 inputs:
	Cash, due from banks and deposits in other banks		$46,072				$46,072		$72,056		$72,056
	Investment securities	34,912				34,912		45,570		45,570
	Level 2 inputs:
	Investment securities	225,426				225,523		241,765		241,872
	Accrued interest receivable	3,784				3,784		3,373		3,373
	Interest rate contracts	198				198		78		78
	Level 3 inputs:
	Loans and loans held for sale, net	1,005,490				1,008,133		951,647		957,643
	Purchased receivables, net	15,332				15,332		15,254		15,254
	Interest rate lock commitments	1,972				1,972		841		841
	Mortgage servicing rights	971				971		1,010		1,010
	Financial liabilities:
	Level 2 inputs:
	Deposits		$1,191,013				$1,191,365		$1,179,747		$1,180,136
	Securities sold under repurchase agreements	17,820				17,820		19,843		19,843
	Borrowings	22,569				22,716		26,304		26,485
	Accrued interest payable	52				52		18		18
	Interest rate contracts	597				597		158		158
	Level 3 inputs:
	RML earn-out liability	8,850				8,850		7,324		7,324
	Junior subordinated debentures	18,558				17,242		18,558		17,239
	Unrecognized financial instruments:
	Commitments to extend credit(1)		$220,008				$2,200		$219,349		$2,193
	Standby letters of credit(1)	5,963				60		6,004		60
	(1) Carrying amounts reflect the notional amount of credit exposure under these financial instruments.
Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis	The following table sets forth the balances as of the periods indicated of assets measured at fair value on a recurring basis:
	(In Thousands)	Total				Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
	March 31, 2015
	Assets:
	Available for sale securities
	U.S. Treasury and government sponsored entities		$200,255				$15,151		$185,104		$—
	Municipal securities	12,213				—		12,213		—
	U.S. Agency mortgage-backed securities	979				—		979		—
	Corporate bonds	39,307				17,743		21,564		—
	Preferred stock	2,018				2,018		—		—
	Total available for sale securities		$254,772				$34,912		$219,860		$—
	Interest rate contracts		$198				$—		$198		$—
	Interest rate lock commitments	1,972				—		—		1,972
	Mortgage servicing rights	971				—		—		971
	Total other assets		$3,141				$—		$198		$2,943
	Liabilities:
	Interest rate contracts		$597				$—		$597		$—
	December 31, 2014
	Assets:
	Available for sale securities
	U.S. Treasury and government sponsored entities		$226,190				$15,545		$210,645		$—
	Municipal securities	12,124				—		12,124		—
	U.S. Agency mortgage-backed securities	1,029				—		1,029		—
	Corporate bonds	39,235				26,873		12,362		—
	Preferred stock	3,152				3,152		—		—
	Total available for sale securities		$281,730				$45,570		$236,160		$1,851
	Interest rate contracts		$78				$—		$78		$—
	Interest rate lock commitments	841				—		—		841
	Mortgage servicing rights	1,010				—		—		1,010
	Total other assets		$1,929				$—		$78		$1,851
	Liabilities:
	Interest rate contracts		$158				$—		$158		$—
Schedule Of Asset Impairment Or Valuation Adjustment Recognized At Fair Value On A Nonrecurring Basis	As of and for the three months ending March 31, 2015 and 2014, no impairment or valuation adjustment was recognized for assets recognized at fair value on a nonrecurring basis, except for certain assets as shown in the following table.  For loans measured for impairment, the Company classifies fair value measurements using observable inputs, such as external appraisals, as Level 2 valuations in the fair value hierarchy, and unobservable inputs, such as in-house evaluations, as Level 3 valuations in the fair value hierarchy.
	(In Thousands)	Total				Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)		Total (gains) losses
	March 31, 2015
	Loans measured for impairment		$2,725				$—		$—		$2,725		$340
	Other real estate owned	649				—		—		649		268
	Total		$3,374				$—		$—		$3,374		$608
	March 31, 2014
	Loans measured for impairment		$807				$—		$—		$807		$271
	Other real estate owned	—				—		—		—		—
	Total		$807				$—		$—		$807		$271
	Assets and Liabilities Measured at Fair Value Using Significant Unobservable Inputs (Level 3)
	The following table provides a description of the valuation technique, unobservable input, and qualitative information about the unobservable inputs for the Company’s assets and liabilities classified as Level 3 and measured at fair value on a nonrecurring basis at March 31, 2015:
	Financial Instrument	Valuation Technique	Unobservable Input	Weighted Average Rate Range
	Loans measured for impairment	In-house valuation of real estate; discounted cash flow	Discount rate	25% - 100%
			Cash flows	NA(1)
	Other real estate owned	Fair value of collateral	Estimated selling and holding costs	7% - 25%
	Interest rate lock commitment	External pricing model	Pull through rate	92.3	%
	Mortgage servicing rights	Discounted cash flow	Constant prepayment rate	9.95% - 25.77%
			Discount rate	9.25% - 10%
	RML earn-out liability	Discounted cash flow	Financial projections of mortgage operations	0.47% - 1.99%
	(1)  Fair value of impaired collateral dependent loans was calculated using contractual cash flows for specific impaired loan.

Segment_Information_Tables

Segment Information (Tables)	3 Months Ended
	Mar. 31, 2015
Segment Reporting [Abstract]
Schedule of Segment Information	Summarized financial information for the Company's reportable segments and the reconciliation to the consolidated financial results is shown in the following tables:
		Three Months Ended March 31, 2015
	(In Thousands)	Community Banking		Home Mortgage Lending			Consolidated
	Interest income		$13,990		$396			$14,386
	Interest expense	474		280			754
	Net interest income	13,516		116			13,632
	Provision (benefit) for loan losses	326		—			326
	Other operating income	3,252		7,283			10,535
	Other operating expense	13,324		5,137			18,461
	Income before provision for income taxes	3,118		2,262			5,380
	Provision for income taxes	813		934			1,747
	Net income	2,305		1,328			3,633
	Less: net income attributable to the noncontrolling interest	72		—			72
	Net income attributable to Northrim BanCorp		$2,233		$1,328			$3,561
		Three Months Ended March 31, 2014
	(In Thousands)	Community Banking		Home Mortgage Lending			Consolidated
	Interest income		$11,673		$—			$11,673
	Interest expense	440		—			440
	Net interest income	11,233		—			11,233
	Provision (benefit) for loan losses	—		—			—
	Other operating income (loss)	2,865		(131		)	2,734
	Other operating expense	9,967		—			9,967
	Income before provision for income taxes	4,131		(131		)	4,000
	Provision for income taxes	1,351		(54		)	1,297
	Net income (loss)	2,780		(77		)	2,703
	Less: net income attributable to the noncontrolling interest	45		—			45
	Net income (loss) attributable to Northrim BanCorp		$2,735		($77	)		$2,658
	31-Mar-15
	(In Thousands)	Community Banking		Home Mortgage Lending			Consolidated
	Total assets		$1,369,167		$78,817			$1,447,984
	Loans held for sale		$—		$61,873			$61,873
	Borrowings		$2,153		$20,416			$22,569
	31-Dec-14
	(In Thousands)	Community Banking		Home Mortgage Lending			Consolidated
	Total assets		$1,391,862		$57,487			$1,449,349
	Loans held for sale		$—		$43,866			$43,866
	Borrowings		$2,164		$24,140			$26,304

Basis_of_Presentation_Narrativ

Basis of Presentation - Narrative (Details)	3 Months Ended
	Mar. 31, 2015
	Segment
Schedule of Equity Method Investments [Line Items]
Number of segments	2
RML
Schedule of Equity Method Investments [Line Items]
Ownership Percentage	100.00%
NBG
Schedule of Equity Method Investments [Line Items]
Ownership Percentage	50.10%

Business_Combinations_Summary_

Business Combinations - Summary of Fair Value Adjustments (Details) (USD $)	0 Months Ended
In Thousands, unless otherwise specified	Apr. 01, 2014	Dec. 02, 2014	Mar. 31, 2015	Dec. 31, 2014	Apr. 02, 2014
Business Acquisition [Line Items]
Goodwill			($22,334)	($22,334)
Alaska Pacific Bank
Business Acquisition [Line Items]
Cost basis net assets					14,733
Cash payment made	-6,423
Common stock issued	-7,446
Net loans	-1,137
Premises and equipment	547
Other intangible assets	623
Mortgage servicing rights	-119
Deposits	-844
Other	236
Bargain purchase gain	170
Residential Mortgage Holding Company
Business Acquisition [Line Items]
Cost basis net assets		11,915
Cash payment made		-18,240
Net loans		-360
Other intangible assets		950
Other		-311
Cash surrender value of life insurance paid		-3,896
Liability for future earn out payments		-7,318	-8,800	-7,300
Rate lock derivative asset		960
Investment in Homestate Mortgage, LLC		1,490
Goodwill		($14,810)

Business_Combinations_Schedule

Business Combinations - Schedule of Assets Acquired and Liabilities Assumed (Details) (USD $)	Apr. 02, 2014	Dec. 02, 2014
In Thousands, unless otherwise specified
Alaska Pacific Bank
Business Acquisition [Line Items]
Cash and equivalents	$12,956
Investment securities	7,240
Loans	138,432
Premises and equipment	3,436
Other intangibles	623
Mortgage servicing rights	1,170
Other real estate owned	1,709
Other assets	1,645
Total assets acquired	167,211
Deposits	151,438
Other liabilities	1,734
Total liabilities assumed	153,172
Residential Mortgage Holding Company
Business Acquisition [Line Items]
Cash and equivalents		10,828
Loans		41,304
Premises and equipment		255
Other intangibles		950
Other real estate owned		270
Other assets		10,291
Total assets acquired		67,858
Other liabilities		6,625
Total liabilities assumed		44,166
Rate lock derivative asset		960
Investment in Homestate Mortgage LLC		3,000
Borrowings		$37,541

Business_Combinations_Schedule1

Business Combinations - Schedule of Loans Acquired (Details) (Alaska Pacific Bank, USD $)	Apr. 02, 2014
In Thousands, unless otherwise specified
Alaska Pacific Bank
Business Acquisition [Line Items]
Contractually required principal payments	$133,921
Purchase adjustment for credit, interest rate, and liquidity	612
Fair value of purchased non-credit impaired loans	$134,533

Business_Combinations_Schedule2

Business Combinations - Schedule of Loans Acquired with Deteriorating Credit Quality (Details) (USD $)	Mar. 31, 2015	Apr. 02, 2014
In Thousands, unless otherwise specified
Business Acquisition [Line Items]
Fair value of purchased credit impaired loans	$2,800	$3,900
Alaska Pacific Bank
Business Acquisition [Line Items]
Contractually required principal payments		7,553
Nonaccretable difference		-3,654
Fair value of purchased credit impaired loans		$3,899

Business_Combinations_Pro_Form

Business Combinations - Pro Forma Information (Details) (USD $)	3 Months Ended		12 Months Ended	1 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Dec. 31, 2014
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Pro Forma Revenue		$13,967,000
Net income attributable to Northrim BanCorp	3,561,000	2,658,000	17,408,000
Earnings Per Share, Basic (USD per share)	$0.52	$0.41
Earnings Per Share, Diluted (USD per share)	$0.51	$0.40
Weighted Average Shares Outstanding, Basic (shares)	6,854,189	6,537,652
Weighted Average Shares Outstanding, Diluted (shares)	6,930,873	6,629,330
Interest Income (Expense), Net	13,632,000	11,233,000
Alaska Pacific Bank
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Weighted Average Shares Outstanding, Basic (shares)		6,827,864
Weighted Average Shares Outstanding, Diluted (shares)		6,919,542
Pro Forma, Interest Income	1,900,000	2,095,000
Pro Forma Information, Net Income (Loss) Since Acquisition		-1,282,000
Pro Forma Information, Revenue Since Acquisition		-10,000
Pro Forma Information, Net Income (Loss) since Acquisition, Adjustment		146,000
Pro Forma Revenue		16,052,000
Pro Forma Net Income (Loss)		1,522,000
Pro Forma Earnings Per Share, Basic (USD per share)		$0.22
Pro Forma Earnings Per Share, Diluted (USD per share)		$0.22
Residential Mortgage Holding Company
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Weighted Average Shares Outstanding, Basic (shares)		6,537,652
Weighted Average Shares Outstanding, Diluted (shares)		6,629,330
Pro Forma, Interest Income		4,143,000		7,400,000
Pro Forma Information, Net Income (Loss) Since Acquisition		-426,000
Pro Forma Information, Revenue Since Acquisition		144,000
Pro Forma Information, Net Income (Loss) since Acquisition, Adjustment		3,072,000
Pro Forma Revenue		18,254,000
Pro Forma Net Income (Loss)		5,304,000
Pro Forma Earnings Per Share, Basic (USD per share)		$0.81
Pro Forma Earnings Per Share, Diluted (USD per share)		$0.80
Interest Income (Expense), Net			67,000
Other Operating Income (Expense), Net			4,100,000
Alaska Pacific Bank and Residential Mortgage Holding Company [Member]
Business Acquisition, Pro Forma Information, Nonrecurring Adjustment [Line Items]
Weighted Average Shares Outstanding, Basic (shares)		6,827,864
Weighted Average Shares Outstanding, Diluted (shares)		6,919,542
Pro Forma Information, Revenue Since Acquisition		134,000
Pro Forma Information, Net Income (Loss) since Acquisition, Adjustment		3,218,000
Pro Forma Revenue		20,339,000
Pro Forma Net Income (Loss)		$4,168,000
Pro Forma Earnings Per Share, Basic (USD per share)		$0.61
Pro Forma Earnings Per Share, Diluted (USD per share)		$0.60

Business_Combinations_Narrativ

Business Combinations - Narrative (Details) (USD $)	3 Months Ended		0 Months Ended			1 Months Ended	3 Months Ended	12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Apr. 01, 2014	Dec. 02, 2014	Nov. 30, 2014	Dec. 31, 2014	Dec. 31, 2014	Dec. 31, 2014	Apr. 02, 2014
			purchased_loan
Business Acquisition [Line Items]
Merger and acquisition expense	$0	$480,000
Goodwill	22,334,000					22,334,000	22,334,000	22,334,000
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability	1,500,000
Alaska Pacific Bank
Acquired Finite-Lived Intangible Assets [Line Items]
Finite-Lived Intangible Assets, Core Deposit Percentage of Total			0.50%
Business Acquisition [Line Items]
Voting interests acquired									100.00%
Acquisition cost			13,900,000
Number of shares issued			290,212
Cash payment made			6,423,000
Bargain purchase gain			170,000
Purchased impaired loans			18
Accretable difference on purchased loans	0
Pro Forma, Interest Income	1,900,000	2,095,000
Noninterest Expense	1,500,000
Net Income (Loss) Attributable to Parent	393,000
Alaska Pacific Bank | Weighted Average
Business Acquisition [Line Items]
Shares issued (USD per share)									25.66
Alaska Pacific Bank | Professional and Outside Services
Business Acquisition [Line Items]
Merger and acquisition expense	480,000
Alaska Pacific Bank | Core Deposits
Acquired Finite-Lived Intangible Assets [Line Items]
Intangible Assets Acquired			623,000
Residential Mortgage Holding Company
Business Acquisition [Line Items]
Voting interests acquired				76.50%
Acquisition cost				29,500,000
Cash payment made				18,240,000
Pro Forma, Interest Income		4,143,000				7,400,000
Merger and acquisition expense								507,000
Noninterest Expense						5,100,000
Net Income (Loss) Attributable to Parent						2,300,000
Equity Interest in Acquiree					9,000,000
Remeasurement Gain							3,000,000
Goodwill				14,810,000
Liability for future earn out payments	8,800,000			7,318,000		7,300,000	7,300,000	7,300,000
Contingent Consideration Term of Arrangement				5 years
Ownership Percentage				100.00%	23.50%
Residential Mortgage Holding Company | Trade Names
Business Acquisition [Line Items]
Indefinite-lived Intangible Assets Acquired				950,000
Residential Mortgage Holding Company | Tier One Earn Out
Business Acquisition [Line Items]
Percent of Revenue Range Used to Calculate Contingent Liability	40.00%
Residential Mortgage Holding Company | Tier One Earn Out | Minimum
Business Acquisition [Line Items]
Revenue Range Used to Calculate Contingent Liability	1,000,000
Residential Mortgage Holding Company | Tier One Earn Out | Maximum
Business Acquisition [Line Items]
Revenue Range Used to Calculate Contingent Liability	2,000,000
Residential Mortgage Holding Company | Tier Two Earn Out
Business Acquisition [Line Items]
Percent of Revenue Range Used to Calculate Contingent Liability	50.00%
Residential Mortgage Holding Company | Tier Two Earn Out | Minimum
Business Acquisition [Line Items]
Revenue Range Used to Calculate Contingent Liability	2,000,000
Residential Mortgage Holding Company | Tier Two Earn Out | Maximum
Business Acquisition [Line Items]
Revenue Range Used to Calculate Contingent Liability	3,000,000
Residential Mortgage Holding Company | Tier Three Earn Out
Business Acquisition [Line Items]
Percent of Revenue Range Used to Calculate Contingent Liability	70.00%
Residential Mortgage Holding Company | Tier Three Earn Out | Minimum
Business Acquisition [Line Items]
Revenue Range Used to Calculate Contingent Liability	3,000,000
Residential Mortgage Holding Company | Tier Three Earn Out | Maximum
Business Acquisition [Line Items]
Revenue Range Used to Calculate Contingent Liability	4,000,000
Residential Mortgage Holding Company | Tier Four Earn Out
Business Acquisition [Line Items]
Percent of Revenue Range Used to Calculate Contingent Liability	85.00%
Residential Mortgage Holding Company | Tier Four Earn Out | Minimum
Business Acquisition [Line Items]
Revenue Range Used to Calculate Contingent Liability	4,000,000
Residential Mortgage Holding Company | Tier Four Earn Out | Maximum
Business Acquisition [Line Items]
Revenue Range Used to Calculate Contingent Liability	6,000,000
Residential Mortgage Holding Company | Tier Five Earn Out
Business Acquisition [Line Items]
Percent of Revenue Range Used to Calculate Contingent Liability	55.00%
Residential Mortgage Holding Company | Tier Five Earn Out | Minimum
Business Acquisition [Line Items]
Revenue Range Used to Calculate Contingent Liability	$6,000,000

Cash_and_Cash_Equivalents_Deta

Cash and Cash Equivalents (Details) (USD $)	3 Months Ended
In Millions, unless otherwise specified	Mar. 31, 2015
Cash and Due from Banks [Abstract]
Maturity period of securities at acquisition	90 days
Domestic certificates of deposit	$3.50

Investment_Securities_Narrativ

Investment Securities - Narrative (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Millions, unless otherwise specified	security	security
Marketable Securities [Abstract]
Securities with unrealized losses	14	29
Number of securities in unrealized loss position greater than 12 months	0	0
Available-for-sale Securities Pledged as Collateral	$56.30	$54.10
Available-for-sale Securities Pledged as Collateral, Percent of Portfolio	22.00%	19.00%

Investment_Securities_Summary_

Investment Securities - Summary Of Investment Security Carrying and Fair Value (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	$2,199	$2,201
Gross Unrealized Gains	97	107
Gross Unrealized Losses	0	0
Fair Value	2,296	2,308
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	253,579	281,310
Gross Unrealized Gains	1,243	964
Gross Unrealized Losses	50	544
Fair Value	254,772	281,730
U.S. Treasury and government sponsored entities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	199,754	226,624
Gross Unrealized Gains	548	105
Gross Unrealized Losses	47	539
Fair Value	200,255	226,190
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	11,962	11,843
Gross Unrealized Gains	252	285
Gross Unrealized Losses	1	4
Fair Value	12,213	12,124
U.S. Agency mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	976	1,024
Gross Unrealized Gains	5	6
Gross Unrealized Losses	2	1
Fair Value	979	1,029
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	38,895	38,820
Gross Unrealized Gains	412	415
Gross Unrealized Losses	0	0
Fair Value	39,307	39,235
Preferred stock
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	1,992	2,999
Gross Unrealized Gains	26	153
Gross Unrealized Losses	0	0
Fair Value	2,018	3,152
Municipal securities
Schedule of Held-to-maturity Securities [Line Items]
Investment securities held to maturity	2,199	2,201
Gross Unrealized Gains	97	107
Gross Unrealized Losses	0	0
Fair Value	$2,296	$2,308

Investment_Securities_Unrealiz

Investment Securities - Unrealized Gain (Loss) on Investments (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, fair value	$43,263	$165,688
Less than 12 months, unrealized losses	50	544
More than 12 months, fair value	0	0
More than 12 months, unrealized losses	0	0
Fair Value	43,263	165,688
Accumulated In Investments	50	544
U.S. Treasury and government sponsored entities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, fair value	42,883	165,004
Less than 12 months, unrealized losses	47	539
More than 12 months, fair value	0	0
More than 12 months, unrealized losses	0	0
Fair Value	42,883	165,004
Accumulated In Investments	47	539
Municipal Securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, fair value	208
Less than 12 months, unrealized losses	1
More than 12 months, fair value	0
More than 12 months, unrealized losses	0
Fair Value	208
Accumulated In Investments	1
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, fair value	172	567
Less than 12 months, unrealized losses	2	4
More than 12 months, fair value	0	0
More than 12 months, unrealized losses	0	0
Fair Value	172	567
Accumulated In Investments	2	4
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Less than 12 months, fair value		117
Less than 12 months, unrealized losses		1
More than 12 months, fair value		0
More than 12 months, unrealized losses		0
Fair Value		117
Accumulated In Investments		$1

Investment_Securities_Schedule

Investment Securities - Schedule Of Amortized Cost And Fair Value By Contractual Maturity Of Available-For-Sale Securities (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Schedule of Available-for-sale Securities [Line Items]
Amortized Cost	$253,579	$281,310
U.S. Treasury and government sponsored entities
Schedule of Available-for-sale Securities [Line Items]
1-5 years, Amortized Cost	199,754
Amortized Cost	199,754	226,624
1-5 years, Fair Value	200,255
Total securities available for sale, Fair Value	200,255
1-5 years, Weighted Average Yield	1.13%
Weighted Average Yield, Total	1.13%
U.S. Agency mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
1-5 years, Amortized Cost	50
5-10 years, Amortized Cost	289
Over 10 years, Amortized Cost	637
Amortized Cost	976	1,024
1-5 years, Fair Value	50
5-10 years, Fair Value	289
Over 10 years, Fair Value	640
Total securities available for sale, Fair Value	979
1-5 years, Weighted Average Yield	2.29%
5-10 years, Weighted Average Yield	3.26%
Over 10 years, Weighted Average Yield	2.91%
Weighted Average Yield, Total	2.98%
Corporate bonds
Schedule of Available-for-sale Securities [Line Items]
Within 1 year, Amorized Cost	736
1-5 years, Amortized Cost	36,159
5-10 years, Amortized Cost	2,000
Amortized Cost	38,895	38,820
Within 1 year, Fair Value	738
1-5 years, Fair Value	36,552
5-10 years, Fair Value	2,017
Total securities available for sale, Fair Value	39,307
Within 1 year, Weighted Average Yield	0.91%
1-5 years, Weighted Average Yield	1.45%
5-10 years, Weighted Average Yield	1.07%
Weighted Average Yield, Total	1.42%
Preferred stock
Schedule of Available-for-sale Securities [Line Items]
Over 10 years, Amortized Cost	1,992
Amortized Cost	1,992	2,999
Over 10 years, Fair Value	2,018
Total securities available for sale, Fair Value	$2,018
Over 10 years, Weighted Average Yield	4.71%
Weighted Average Yield, Total	4.71%

Investment_Securities_Schedule1

Investment Securities - Schedule Of Amortized Cost And Fair Value By Contractual Maturity Of Debt Securities (Details) (Municipal securities, USD $)	Mar. 31, 2015
In Thousands, unless otherwise specified
Municipal securities
Schedule Of Debt Securities [Line Items]
Within 1 year, Amortized Cost	$2,091
1-5 years, Amortized Cost	7,142
5-10 years, Amortized Cost	4,928
Total debt securities, Amortized Cost	14,161
Within 1 year, Fair Value	2,096
1-5 years, Fair Value	7,321
5-10 years, Fair Value	5,092
Total debt securities, Fair Value	$14,509
Within 1 year, Weighted Average Yield	0.64%
1-5 years, Weighted Average Yield	2.67%
5-10 years, Weighted Average Yield	4.54%
Weighted Average Yield, Total	3.02%

Investment_Securities_Schedule2

Investment Securities - Schedule Of Available-For-Sale Securities Proceeds, Gains, And Losses (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Marketable Securities [Abstract]
Proceeds	$1,621	$2,098
Gross Gains	114	97
Gross Losses	$0	$0

Investment_Securities_Summary_1

Investment Securities - Summary Of Interest Income On Available-For-Sale Investment Securities (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	$800	$593
Total tax-exempt interest income	85	137
Total interest income	885	730
U.S. Treasury and government sponsored entities
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	618	335
U.S. Agency mortgage-backed securities
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	7	0
Other
Schedule of Available-for-sale Securities [Line Items]
Total taxable interest income	175	258
Municipal securities
Schedule of Available-for-sale Securities [Line Items]
Total tax-exempt interest income	$85	$137

Loans_Held_for_Sale_Details

Loans Held for Sale (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 02, 2014	Nov. 30, 2014
Business Acquisition [Line Items]
Payments for Origination of Mortgage Loans Held-for-sale	$176,372	$0
Purchases of loans held for sale	0	30,482
Proceeds from the sale of loans held for sale	158,365	27,455
Residential Mortgage Holding Company
Business Acquisition [Line Items]
Voting interests acquired			76.50%
Ownership Percentage			100.00%	23.50%
Subsidiaries
Business Acquisition [Line Items]
Payments for Origination of Mortgage Loans Held-for-sale	176,400
Proceeds from the sale of loans held for sale	$158,400

Loans_Narrative_Details

Loans - Narrative (Details) (USD $)	3 Months Ended		12 Months Ended	0 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014	Apr. 01, 2014	Apr. 02, 2014
	Contract	Contract	Contract	purchased_loan
	financing_commitment
Business Acquisition [Line Items]
Financing Receivable, Modifications, Specific Contract, Allowance for Credit Losses	$215,000
Nonaccrual loans	4,810,000		4,674,000
Nonperforming loans minimum threshold for individual impairment evaluation	50,000
Recorded investment in loans considered to be impaired	12,827,000		11,297,000
Fair value of purchased credit impaired loans	2,800,000				3,900,000
Loans classified as troubled debt restructuring	9,033,000		7,700,000
Number of commitments on TDR	0
TDR Write-downs	0
TDR with specific allowance, Number of Contracts	2		0
Post-Modification Recorded Investment	1,354,000
TDR that Subsequently Defaulted, Number of Contracts	0	1	0
Alaska Pacific Bank
Business Acquisition [Line Items]
Purchased impaired loans				18
Accretable difference on purchased loans	0
Fair value of purchased credit impaired loans					$3,899,000

Loans_Loan_Portfolio_Segmented

Loans - Loan Portfolio Segmented By Risk Class (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment [Line Items]
Subtotal	$965,026	$929,055
Less: Unearned origination fee, net of origination costs	-4,462	-4,551
Total loans	960,564	924,504
Asset Quality Rating - Pass
Financing Receivable, Recorded Investment [Line Items]
Subtotal	936,373	901,911
Asset Quality Rating - Special Mention
Financing Receivable, Recorded Investment [Line Items]
Subtotal	19,916	20,012
Asset Quality Rating - Substandard
Financing Receivable, Recorded Investment [Line Items]
Subtotal	8,737	7,132
Asset Quality Rating - Doubtful
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Asset Quality Rating - Loss
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Commercial
Financing Receivable, Recorded Investment [Line Items]
Subtotal	324,433	306,543
Commercial | Asset Quality Rating - Pass
Financing Receivable, Recorded Investment [Line Items]
Subtotal	307,514	291,020
Commercial | Asset Quality Rating - Special Mention
Financing Receivable, Recorded Investment [Line Items]
Subtotal	11,601	11,618
Commercial | Asset Quality Rating - Substandard
Financing Receivable, Recorded Investment [Line Items]
Subtotal	5,318	3,905
Commercial | Asset Quality Rating - Doubtful
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Commercial | Asset Quality Rating - Loss
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Construction One-To- Four Family
Financing Receivable, Recorded Investment [Line Items]
Subtotal	41,272	34,842
Real Estate Construction One-To- Four Family | Asset Quality Rating - Pass
Financing Receivable, Recorded Investment [Line Items]
Subtotal	41,272	34,651
Real Estate Construction One-To- Four Family | Asset Quality Rating - Special Mention
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Construction One-To- Four Family | Asset Quality Rating - Substandard
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	191
Real Estate Construction One-To- Four Family | Asset Quality Rating - Doubtful
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Construction One-To- Four Family | Asset Quality Rating - Loss
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Construction Other
Financing Receivable, Recorded Investment [Line Items]
Subtotal	92,382	91,195
Real Estate Construction Other | Asset Quality Rating - Pass
Financing Receivable, Recorded Investment [Line Items]
Subtotal	92,382	91,195
Real Estate Construction Other | Asset Quality Rating - Special Mention
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Construction Other | Asset Quality Rating - Substandard
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Construction Other | Asset Quality Rating - Doubtful
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Construction Other | Asset Quality Rating - Loss
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Term Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Subtotal	109,967	109,472
Real Estate Term Owner Occupied | Asset Quality Rating - Pass
Financing Receivable, Recorded Investment [Line Items]
Subtotal	103,593	103,049
Real Estate Term Owner Occupied | Asset Quality Rating - Special Mention
Financing Receivable, Recorded Investment [Line Items]
Subtotal	5,780	5,817
Real Estate Term Owner Occupied | Asset Quality Rating - Substandard
Financing Receivable, Recorded Investment [Line Items]
Subtotal	594	606
Real Estate Term Owner Occupied | Asset Quality Rating - Doubtful
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Term Owner Occupied | Asset Quality Rating - Loss
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Term Non-Owner Occupied
Financing Receivable, Recorded Investment [Line Items]
Subtotal	295,583	286,616
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Pass
Financing Receivable, Recorded Investment [Line Items]
Subtotal	291,821	282,774
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Special Mention
Financing Receivable, Recorded Investment [Line Items]
Subtotal	2,094	2,095
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Substandard
Financing Receivable, Recorded Investment [Line Items]
Subtotal	1,668	1,747
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Doubtful
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Loss
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Term Other
Financing Receivable, Recorded Investment [Line Items]
Subtotal	40,149	36,894
Real Estate Term Other | Asset Quality Rating - Pass
Financing Receivable, Recorded Investment [Line Items]
Subtotal	39,716	36,705
Real Estate Term Other | Asset Quality Rating - Special Mention
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	39
Real Estate Term Other | Asset Quality Rating - Substandard
Financing Receivable, Recorded Investment [Line Items]
Subtotal	433	150
Real Estate Term Other | Asset Quality Rating - Doubtful
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Real Estate Term Other | Asset Quality Rating - Loss
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Consumer Secured By 1st Deed Of Trust
Financing Receivable, Recorded Investment [Line Items]
Subtotal	30,874	32,000
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Pass
Financing Receivable, Recorded Investment [Line Items]
Subtotal	29,833	31,118
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Special Mention
Financing Receivable, Recorded Investment [Line Items]
Subtotal	398	396
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Substandard
Financing Receivable, Recorded Investment [Line Items]
Subtotal	643	486
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Doubtful
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Loss
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Consumer Other
Financing Receivable, Recorded Investment [Line Items]
Subtotal	30,366	31,493
Consumer Other | Asset Quality Rating - Pass
Financing Receivable, Recorded Investment [Line Items]
Subtotal	30,242	31,399
Consumer Other | Asset Quality Rating - Special Mention
Financing Receivable, Recorded Investment [Line Items]
Subtotal	43	47
Consumer Other | Asset Quality Rating - Substandard
Financing Receivable, Recorded Investment [Line Items]
Subtotal	81	47
Consumer Other | Asset Quality Rating - Doubtful
Financing Receivable, Recorded Investment [Line Items]
Subtotal	0	0
Consumer Other | Asset Quality Rating - Loss
Financing Receivable, Recorded Investment [Line Items]
Subtotal	$0	$0

Loans_Nonaccrual_Loans_By_Segm

Loans - Nonaccrual Loans By Segment (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Nonaccrual Loans By Major Loan Type [Line Items]
Total	$4,810	$4,674
Commercial
Nonaccrual Loans By Major Loan Type [Line Items]
Total	2,538	2,031
Real Estate Construction One-To- Four Family
Nonaccrual Loans By Major Loan Type [Line Items]
Total	0	191
Real Estate Construction Other
Nonaccrual Loans By Major Loan Type [Line Items]
Total	0	0
Real Estate Term Owner Occupied
Nonaccrual Loans By Major Loan Type [Line Items]
Total	127	135
Real Estate Term Non-Owner Occupied
Nonaccrual Loans By Major Loan Type [Line Items]
Total	1,668	1,746
Real Estate Term Other
Nonaccrual Loans By Major Loan Type [Line Items]
Total	0	39
Consumer Secured By 1st Deed Of Trust
Nonaccrual Loans By Major Loan Type [Line Items]
Total	477	485
Consumer Other
Nonaccrual Loans By Major Loan Type [Line Items]
Total	$0	$47

Loans_Past_Due_Loans_And_Nonac

Loans - Past Due Loans And Nonaccrual Loans (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due Still Accruing, Subtotal	$1,461	$736
60-89 Days Past Due Still Accruing, Subtotal	620	545
Greater Than 90 Days Still Accruing, Subtotal	0	0
Nonaccrual loans	4,810	4,674
Total Past Due and Nonaccrual, Subtotal	6,891	5,955
Total Current, Subtotal	958,135	923,100
Total Financing Receivables	965,026	929,055
Less: Unearned origination fee, net of origination costs	-4,462	-4,551
Total loans	960,564	924,504
Asset Quality Rating - Pass
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due Still Accruing, Subtotal	1,246	696
60-89 Days Past Due Still Accruing, Subtotal	55	545
Greater Than 90 Days Still Accruing, Subtotal	0	0
Nonaccrual loans	0	0
Total Past Due and Nonaccrual, Subtotal	1,301	1,241
Total Current, Subtotal	935,072	900,670
Total Financing Receivables	936,373	901,911
Asset Quality Rating - Special Mention
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due Still Accruing, Subtotal	49	0
60-89 Days Past Due Still Accruing, Subtotal	0	0
Greater Than 90 Days Still Accruing, Subtotal	0	0
Nonaccrual loans	0	0
Total Past Due and Nonaccrual, Subtotal	49	0
Total Current, Subtotal	19,867	20,012
Total Financing Receivables	19,916	20,012
Asset Quality Rating - Substandard
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due Still Accruing, Subtotal	166	40
60-89 Days Past Due Still Accruing, Subtotal	565	0
Greater Than 90 Days Still Accruing, Subtotal	0	0
Nonaccrual loans	4,810	4,674
Total Past Due and Nonaccrual, Subtotal	5,541	4,714
Total Current, Subtotal	3,196	2,418
Total Financing Receivables	8,737	7,132
Asset Quality Rating - Doubtful
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due Still Accruing, Subtotal	0	0
60-89 Days Past Due Still Accruing, Subtotal	0	0
Greater Than 90 Days Still Accruing, Subtotal	0	0
Nonaccrual loans	0	0
Total Past Due and Nonaccrual, Subtotal	0	0
Total Current, Subtotal	0	0
Total Financing Receivables	0	0
Asset Quality Rating - Loss
Financing Receivable, Recorded Investment, Past Due [Line Items]
30-59 Days Past Due Still Accruing, Subtotal	0	0
60-89 Days Past Due Still Accruing, Subtotal	0	0
Greater Than 90 Days Still Accruing, Subtotal	0	0
Nonaccrual loans	0	0
Total Past Due and Nonaccrual, Subtotal	0	0
Total Current, Subtotal	0	0
Total Financing Receivables	$0	$0

Loans_Impaired_Loans_Details

Loans - Impaired Loans (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	$10,101		$10,491
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	10,259		10,549
Impaired Financing Receivable, with Related Allowance, Recorded Investment	2,726		806
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	2,726		806
Related Allowance	416		75
Recorded Investment	12,827		11,297
Unpaid Principal Balance	12,985		11,355
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	11,382	5,261
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	155	109
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	2,529	970
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	6
Impaired Financing Receivable, Average Recorded Investment	13,911	6,231
Impaired Financing Receivable, Interest Income, Accrual Method	155	115
Commercial | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	166		170
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	166		170
Related Allowance	0		0
Recorded Investment	166		170
Unpaid Principal Balance	166		170
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	168	132
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	3	1
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	185
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	6
Impaired Financing Receivable, Average Recorded Investment	168	317
Impaired Financing Receivable, Interest Income, Accrual Method	3	7
Commercial | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,729		3,000
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,874		3,045
Impaired Financing Receivable, with Related Allowance, Recorded Investment	2,442
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	2,442
Related Allowance	361		75
Recorded Investment	5,171		3,806
Unpaid Principal Balance	5,316		3,851
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	3,040	393
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	29	4
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	2,245	600
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0
Impaired Financing Receivable, Average Recorded Investment	5,285	993
Impaired Financing Receivable, Interest Income, Accrual Method	29	4
Real Estate Construction One-To- Four Family | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	755
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	755
Related Allowance	0
Recorded Investment	755
Unpaid Principal Balance	755
Real Estate Construction One-To- Four Family | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Related Allowance			0
Recorded Investment			191
Unpaid Principal Balance			191
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	353
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	6
Impaired Financing Receivable, Average Recorded Investment	0	353
Impaired Financing Receivable, Interest Income, Accrual Method	0	6
Real Estate Construction One-To- Four Family | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment			191
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance			191
Real Estate Construction Other | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment			772
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance			772
Related Allowance			0
Recorded Investment			772
Unpaid Principal Balance			772
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	763	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	30	0
Impaired Financing Receivable, Average Recorded Investment	763	0
Impaired Financing Receivable, Interest Income, Accrual Method	30	0
Real Estate Construction Other | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	823
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	30
Impaired Financing Receivable, Average Recorded Investment	0	823
Impaired Financing Receivable, Interest Income, Accrual Method	0	30
Real Estate Term Owner Occupied | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	498		501
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	498		501
Related Allowance	0		0
Recorded Investment	498		501
Unpaid Principal Balance	498		501
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	499	511
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	12	11
Impaired Financing Receivable, Average Recorded Investment	499	511
Impaired Financing Receivable, Interest Income, Accrual Method	12	11
Real Estate Term Owner Occupied | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	271		273
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	271		273
Related Allowance	0		0
Recorded Investment	271		273
Unpaid Principal Balance	271		273
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	272	281
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	5	6
Impaired Financing Receivable, Average Recorded Investment	272	281
Impaired Financing Receivable, Interest Income, Accrual Method	5	6
Real Estate Term Owner Occupied | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	549		558
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	549		558
Related Allowance	0		0
Recorded Investment	549		558
Unpaid Principal Balance	549		558
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	640	869
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	9	13
Impaired Financing Receivable, Average Recorded Investment	640	869
Impaired Financing Receivable, Interest Income, Accrual Method	9	13
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	543		549
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	543		549
Related Allowance	0		0
Recorded Investment	543		549
Unpaid Principal Balance	543		549
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	546	618
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	19	19
Impaired Financing Receivable, Average Recorded Investment	546	618
Impaired Financing Receivable, Interest Income, Accrual Method	19	19
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	2,087		2,088
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	2,087		2,088
Related Allowance	0		0
Recorded Investment	2,087		2,088
Unpaid Principal Balance	2,087		2,088
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	2,175	979
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	44	15
Impaired Financing Receivable, Average Recorded Investment	2,175	979
Impaired Financing Receivable, Interest Income, Accrual Method	44	15
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	1,668		1,709
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	1,668		1,709
Related Allowance	0		0
Recorded Investment	1,668		1,709
Unpaid Principal Balance	1,668		1,709
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	2,371	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0
Impaired Financing Receivable, Average Recorded Investment	2,371	0
Impaired Financing Receivable, Interest Income, Accrual Method	0	0
Real Estate Term Other | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	149		150
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	149		150
Impaired Financing Receivable, with Related Allowance, Recorded Investment	284
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance	284
Related Allowance	55		0
Recorded Investment	433		150
Unpaid Principal Balance	433		150
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	150	154
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	3	3
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	284	0
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0
Impaired Financing Receivable, Average Recorded Investment	434	154
Impaired Financing Receivable, Interest Income, Accrual Method	3	3
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Pass
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	81		82
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	81		82
Related Allowance	0		0
Recorded Investment	81		82
Unpaid Principal Balance	81		82
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	81	87
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	1	1
Impaired Financing Receivable, Average Recorded Investment	81	87
Impaired Financing Receivable, Interest Income, Accrual Method	1	1
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Special Mention
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment			448
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance			461
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Impaired Financing Receivable, with No Related Allowance, Recorded Investment	605
Impaired Financing Receivable, with No Related Allowance, Unpaid Principal Balance	618
Impaired Financing Receivable, with Related Allowance, Recorded Investment			806
Impaired Financing Receivable, with Related Allowance, Unpaid Principal Balance			806
Related Allowance	0		75
Recorded Investment	605
Unpaid Principal Balance	618
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	677	0
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0
Impaired Financing Receivable, with Related Allowance, Average Recorded Investment	0	185
Impaired Financing Receivable, with Related Allowance, Interest Income, Accrual Method	0	0
Impaired Financing Receivable, Average Recorded Investment	677	185
Impaired Financing Receivable, Interest Income, Accrual Method	0	0
Consumer Other | Asset Quality Rating - Substandard
Financing Receivable, Impaired [Line Items]
Related Allowance			0
Recorded Investment			448
Unpaid Principal Balance			461
Impaired Financing Receivable, with No Related Allowance, Average Recorded Investment	0	61
Impaired Financing Receivable, with No Related Allowance, Interest Income, Accrual Method	0	0
Impaired Financing Receivable, Average Recorded Investment	0	61
Impaired Financing Receivable, Interest Income, Accrual Method	$0	$0

Loans_Troubled_Debt_Restructur

Loans - Troubled Debt Restructurings (Details) (USD $)	3 Months Ended		12 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	Contract	Contract	Contract
Financing Receivable, Modifications [Line Items]
TDR that Subsequently Defaulted, Number of Contracts	0	1	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$0	$353,000
Number of Contracts	2
Pre-Modification Recorded Investment	900,000
Post-Modification Recorded Investment	1,354,000
Existing Troubled Debt Restructuring	7,679,000
Loans classified as troubled debt restructuring	9,033,000		7,700,000
Rate Modification
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Investment	0
Post-Modification Recorded Investment	0
Term Modification
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Investment	0
Post-Modification Recorded Investment	0
Payment Modification
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Investment	0
Post-Modification Recorded Investment	0
Combination Modification
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Investment	900,000
Post-Modification Recorded Investment	1,354,000
Commercial | Asset Quality Rating - Special Mention
Financing Receivable, Modifications [Line Items]
Number of Contracts	2
Pre-Modification Recorded Investment	900,000
Post-Modification Recorded Investment	1,354,000
Commercial | Asset Quality Rating - Special Mention | Rate Modification
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Investment	0
Post-Modification Recorded Investment	0
Commercial | Asset Quality Rating - Special Mention | Term Modification
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Investment	0
Post-Modification Recorded Investment	0
Commercial | Asset Quality Rating - Special Mention | Payment Modification
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Investment	0
Post-Modification Recorded Investment	0
Commercial | Asset Quality Rating - Special Mention | Combination Modification
Financing Receivable, Modifications [Line Items]
Pre-Modification Recorded Investment	900,000
Post-Modification Recorded Investment	1,354,000
Real Estate Construction One-To- Four Family | Asset Quality Rating - Special Mention
Financing Receivable, Modifications [Line Items]
TDR that Subsequently Defaulted, Number of Contracts	0	1
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0	353,000
Loans with Accrual Status
Financing Receivable, Modifications [Line Items]
Post-Modification Recorded Investment	150,000
Existing Troubled Debt Restructuring	5,638,000
Loans classified as troubled debt restructuring	5,788,000
Loans with Accrual Status | Commercial | Asset Quality Rating - Special Mention
Financing Receivable, Modifications [Line Items]
Post-Modification Recorded Investment	150,000
Loans with Non-Accrual Status
Financing Receivable, Modifications [Line Items]
Post-Modification Recorded Investment	1,204,000
Existing Troubled Debt Restructuring	2,041,000
Loans classified as troubled debt restructuring	3,245,000
Loans with Non-Accrual Status | Commercial | Asset Quality Rating - Special Mention
Financing Receivable, Modifications [Line Items]
Post-Modification Recorded Investment	$1,204,000

Allowance_for_Loan_Losses_Allo

Allowance for Loan Losses - Allowance For Loan Losses (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	$16,723	$16,282
Charge-Offs	-188	-329
Recoveries	86	79
Provision (benefit)	326	0
Balance, end of period	16,947	16,032
Balance, end of period: Individually evaluated for impairment	416	282
Balance, end of period: Collectively evaluated for impairment	16,531	15,750
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	5,643	5,779
Charge-Offs	-107	-320
Recoveries	67	54
Provision (benefit)	488	144
Balance, end of period	6,091	5,657
Balance, end of period: Individually evaluated for impairment	361	277
Balance, end of period: Collectively evaluated for impairment	5,730	5,380
Real Estate Construction One-To- Four Family
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	644	557
Charge-Offs	0	0
Recoveries	0	12
Provision (benefit)	113	-56
Balance, end of period	757	513
Balance, end of period: Individually evaluated for impairment	0	0
Balance, end of period: Collectively evaluated for impairment	757	513
Real Estate Construction Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	1,653	539
Charge-Offs	0	0
Recoveries	0	0
Provision (benefit)	10	84
Balance, end of period	1,663	623
Balance, end of period: Individually evaluated for impairment	0	0
Balance, end of period: Collectively evaluated for impairment	1,663	623
Real Estate Term Owner Occupied
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	1,580	1,583
Charge-Offs	0	0
Recoveries	0	0
Provision (benefit)	-10	-176
Balance, end of period	1,570	1,407
Balance, end of period: Individually evaluated for impairment	0	0
Balance, end of period: Collectively evaluated for impairment	1,570	1,407
Real Estate Term Non-Owner Occupied
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	4,704	4,297
Charge-Offs	0	0
Recoveries	0	0
Provision (benefit)	90	-4
Balance, end of period	4,794	4,293
Balance, end of period: Individually evaluated for impairment	0	0
Balance, end of period: Collectively evaluated for impairment	4,794	4,293
Real Estate Term Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	656	537
Charge-Offs	-81	0
Recoveries	17	0
Provision (benefit)	164	118
Balance, end of period	756	655
Balance, end of period: Individually evaluated for impairment	55	0
Balance, end of period: Collectively evaluated for impairment	701	655
Consumer Secured By 1st Deed Of Trust
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	285	322
Charge-Offs	0	0
Recoveries	0	0
Provision (benefit)	-11	-9
Balance, end of period	274	313
Balance, end of period: Individually evaluated for impairment	0	5
Balance, end of period: Collectively evaluated for impairment	274	308
Consumer Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	410	390
Charge-Offs	0	-9
Recoveries	2	13
Provision (benefit)	-10	-10
Balance, end of period	402	384
Balance, end of period: Individually evaluated for impairment	0	0
Balance, end of period: Collectively evaluated for impairment	402	384
Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Balance, beginning of period	1,148	2,278
Charge-Offs	0	0
Recoveries	0	0
Provision (benefit)	-508	-91
Balance, end of period	640	2,187
Balance, end of period: Individually evaluated for impairment	0	0
Balance, end of period: Collectively evaluated for impairment	$640	$2,187

Allowance_for_Loan_Losses_Reco

Allowance for Loan Losses - Recorded Investment Segregated By Amounts Individually Or Collectively In Allowance For Loan Losses (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	$965,026	$929,055
Balance, end of period: Individually evaluated for impairment	12,827	11,297
Balance, end of period: Collectively evaluated for impairment	952,199	917,758
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	324,433	306,543
Balance, end of period: Individually evaluated for impairment	5,337	3,976
Balance, end of period: Collectively evaluated for impairment	319,096	302,567
Real Estate Construction One-To- Four Family
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	41,272	34,842
Balance, end of period: Individually evaluated for impairment	0	191
Balance, end of period: Collectively evaluated for impairment	41,272	34,651
Real Estate Construction Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	92,382	91,195
Balance, end of period: Individually evaluated for impairment	755	772
Balance, end of period: Collectively evaluated for impairment	91,627	90,423
Real Estate Term Owner Occupied
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	109,967	109,472
Balance, end of period: Individually evaluated for impairment	1,318	1,332
Balance, end of period: Collectively evaluated for impairment	108,649	108,140
Real Estate Term Non-Owner Occupied
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	295,583	286,616
Balance, end of period: Individually evaluated for impairment	4,298	4,346
Balance, end of period: Collectively evaluated for impairment	291,285	282,270
Real Estate Term Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	40,149	36,894
Balance, end of period: Individually evaluated for impairment	433	150
Balance, end of period: Collectively evaluated for impairment	39,716	36,744
Consumer Secured By 1st Deed Of Trust
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	30,874	32,000
Balance, end of period: Individually evaluated for impairment	686	530
Balance, end of period: Collectively evaluated for impairment	30,188	31,470
Consumer Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Total Financing Receivables	30,366	31,493
Balance, end of period: Individually evaluated for impairment	0	0
Balance, end of period: Collectively evaluated for impairment	$30,366	$31,493

Allowance_for_Loan_Losses_Bala

Allowance for Loan Losses - Balance Of The Allowance Segregated By Segment And Class (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	$416		$282
Collectively evaluated for impairment	16,531		15,750
Total	16,947	16,723	16,032	16,282
Asset Quality Rating - Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	15,065	14,643
Asset Quality Rating - Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	793	832
Asset Quality Rating - Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	416	75
Collectively evaluated for impairment	33	25
Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	640	1,148
Commercial
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	361		277
Collectively evaluated for impairment	5,730		5,380
Total	6,091	5,643	5,657	5,779
Commercial | Asset Quality Rating - Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	5,128	4,938
Commercial | Asset Quality Rating - Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	594	621
Commercial | Asset Quality Rating - Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	361	75
Collectively evaluated for impairment	8	9
Commercial | Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Real Estate Construction One-To- Four Family
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	757		513
Total	757	644	513	557
Real Estate Construction One-To- Four Family | Asset Quality Rating - Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	757	644
Real Estate Construction One-To- Four Family | Asset Quality Rating - Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Real Estate Construction One-To- Four Family | Asset Quality Rating - Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Real Estate Construction One-To- Four Family | Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Real Estate Construction Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	1,663		623
Total	1,663	1,653	623	539
Real Estate Construction Other | Asset Quality Rating - Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	1,663	1,653
Real Estate Construction Other | Asset Quality Rating - Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Real Estate Construction Other | Asset Quality Rating - Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Real Estate Construction Other | Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Real Estate Term Owner Occupied
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	1,570		1,407
Total	1,570	1,580	1,407	1,583
Real Estate Term Owner Occupied | Asset Quality Rating - Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	1,379	1,382
Real Estate Term Owner Occupied | Asset Quality Rating - Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	191	198
Real Estate Term Owner Occupied | Asset Quality Rating - Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Real Estate Term Owner Occupied | Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Real Estate Term Non-Owner Occupied
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	4,794		4,293
Total	4,794	4,704	4,293	4,297
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	4,794	4,703
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Real Estate Term Non-Owner Occupied | Asset Quality Rating - Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	1
Real Estate Term Non-Owner Occupied | Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Real Estate Term Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	55		0
Collectively evaluated for impairment	701		655
Total	756	656	655	537
Real Estate Term Other | Asset Quality Rating - Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	701	651
Real Estate Term Other | Asset Quality Rating - Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	5
Real Estate Term Other | Asset Quality Rating - Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	55	0
Collectively evaluated for impairment	0	0
Real Estate Term Other | Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Consumer Secured By 1st Deed Of Trust
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		5
Collectively evaluated for impairment	274		308
Total	274	285	313	322
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	267	278
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	7	7
Consumer Secured By 1st Deed Of Trust | Asset Quality Rating - Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Consumer Secured By 1st Deed Of Trust | Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Consumer Other
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	402		384
Total	402	410	384	390
Consumer Other | Asset Quality Rating - Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	376	394
Consumer Other | Asset Quality Rating - Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	1	1
Consumer Other | Asset Quality Rating - Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	25	15
Consumer Other | Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0		0
Collectively evaluated for impairment	640		2,187
Total	640	1,148	2,187	2,278
Unallocated | Asset Quality Rating - Pass
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Unallocated | Asset Quality Rating - Special Mention
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	0	0
Unallocated | Asset Quality Rating - Substandard
Financing Receivable, Allowance for Credit Losses [Line Items]
Individually evaluated for impairment	0	0
Collectively evaluated for impairment	0	0
Unallocated | Unallocated
Financing Receivable, Allowance for Credit Losses [Line Items]
Collectively evaluated for impairment	$640	$1,148

Purchased_Receivables_Narrativ

Purchased Receivables - Narrative (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	purchased_receivable	purchased_receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of segments and classes of purchased receivables	1
Loans classified as troubled debt restructuring	$9,033,000		$7,700,000
Purchased Receivable
Accounts, Notes, Loans and Financing Receivable [Line Items]
Number of purchased receivables past due	0	0
Loans classified as troubled debt restructuring	$0		$0

Purchased_Receivables_Summary_

Purchased Receivables - Summary of Components of Net Purchased Receivables (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014	Mar. 31, 2014	Dec. 31, 2013
In Thousands, unless otherwise specified
Purchased Receivables [Abstract]
Purchased receivables	$15,597	$15,543
Reserve for purchased receivable losses	-265	-289	-236	-273
Total	$15,332	$15,254

Purchased_Receivables_Allowanc

Purchased Receivables - Allowance on Net Purchase Receivables (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Purchased Receivable Allowance for Loan Loss Reserve [Roll Forward]
Balance at beginning of period	$289	$273
Charge-offs	-188	-329
Balance at end of period	265	236
Purchased Receivable
Purchased Receivable Allowance for Loan Loss Reserve [Roll Forward]
Charge-offs	0	0
Recoveries	30	0
Charge-offs net of recoveries	30	0
Reserve for (recovery from) purchased receivables	($54)	($37)

Goodwill_and_Intangible_Assets1

Goodwill and Intangible Assets - Narrative (Details) (USD $)	0 Months Ended
In Thousands, unless otherwise specified	Apr. 01, 2014	Dec. 02, 2014	Mar. 31, 2015	Dec. 31, 2014	Apr. 02, 2014
Finite-Lived Intangible Assets [Line Items]
Goodwill			$22,334	$22,334
Alaska Pacific Bank
Finite-Lived Intangible Assets [Line Items]
Voting interests acquired					100.00%
Alaska Pacific Bank | Core Deposits
Finite-Lived Intangible Assets [Line Items]
Intangible Assets Acquired	623
Useful Life of Intangible Assets	10 years
Residential Mortgage Holding Company
Finite-Lived Intangible Assets [Line Items]
Voting interests acquired		76.50%
Goodwill		14,810
Trade Names | Residential Mortgage Holding Company
Finite-Lived Intangible Assets [Line Items]
Indefinite-lived Intangible Assets Acquired		$950

Deposit_Activities_Narrative_D

Deposit Activities - Narrative (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
Deposits [Abstract]
Deposits	$1,191,013,000	$1,179,747,000
Certificates of deposit	147,300,000	142,200,000
CD maturities over next twelve months	$75,100,000	$81,900,000
CD maturities over next twelve months, percent	51.00%	58.00%

Derivatives_Narrative_Details

Derivatives - Narrative (Details) (USD $)	3 Months Ended
	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
Derivatives, Fair Value [Line Items]
Collateral requirement threshold	$250,000
Collateral posted	262,000		0
Derivative notional amount	23,000,000		23,600,000
Derivative fee income	0	0
Variable to Fixed
Derivatives, Fair Value [Line Items]
Derivative notional amount	11,500,000
Number of derivatives	2
Fixed to Variable
Derivatives, Fair Value [Line Items]
Derivative notional amount	11,500,000
Number of derivatives	2
Residential Mortgage Holding Company
Derivatives, Fair Value [Line Items]
Unfunded Lending Commitment	$81,200,000		$39,600,000

Derivatives_Schedule_of_Deriva

Derivatives - Schedule of Derivative Instruments (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Derivatives, Fair Value [Line Items]
Interest rate contracts	$2,170	$919
Interest Rate Swap | Other Assets
Derivatives, Fair Value [Line Items]
Interest rate contracts	198	78
Interest Rate Swap | Other Liabilities
Derivatives, Fair Value [Line Items]
Interest rate contracts	597	158
Interest Rate Lock Commitments
Derivatives, Fair Value [Line Items]
Interest rate contracts	1,972	841
Interest rate contracts	597	158
Interest Rate Lock Commitments | Other Assets
Derivatives, Fair Value [Line Items]
Interest rate contracts	$1,972	$841

Derivatives_Schedule_of_Deriva1

Derivatives - Schedule of Derivative Gain (Loss) (Details) (Interest Rate Contract, Other Income, USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015
Interest Rate Contract | Other Income
Derivative Instruments, Gain (Loss) [Line Items]
Gain (loss) on derivatives not designated as hedging	$787

Stock_Incentive_Plan_Narrative

Stock Incentive Plan - Narrative (Details) (USD $)	3 Months Ended
In Thousands, except Share data, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares of authorized stock for stock incentive plan	350,000
Stock-based compensation expense	$118	$107
Options exercised (in shares)	0	0
Options granted (in shares)	0
Stock Options
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share based compensation options contractual term	10 years
Stock incentive plan vesting period, years	3 years
Stock-based compensation expense	22	16
Restricted Stock Units
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock incentive plan vesting period, years	3 years
Stock-based compensation expense	$96	$91
Restricted units granted (in shares)	0

Fair_Value_of_Assets_and_Liabi2

Fair Value of Assets and Liabilities - Schedule Of Estimated Fair Values (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Dec. 31, 2014
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Duration of purchased receivables	1 year
Interest rate contracts	$2,170	$919
Purchased receivables, net	15,332	15,254
Mortgage servicing rights	971	1,010
Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commitments to extend credit	220,008	219,349
Standby letters of credit	5,963	6,004
Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Commitments to extend credit	2,200	2,193
Standby letters of credit	60	60
Level 1 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights	0	0
Level 1 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash, due from banks and deposits in other banks	46,072	72,056
Investment securities	34,912	45,570
Level 1 inputs: | Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Cash, due from banks and deposits in other banks	46,072	72,056
Investment securities	34,912	45,570
Level 2 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights	0	0
Level 2 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	225,426	241,765
Accrued interest receivable	3,784	3,373
Deposits	1,191,013	1,179,747
Securities sold under repurchase agreements	17,820	19,843
Borrowings	22,569	26,304
Accrued interest payable	52	18
Level 2 inputs: | Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Investment securities	225,523	241,872
Accrued interest receivable	3,784	3,373
Deposits	1,191,365	1,180,136
Securities sold under repurchase agreements	17,820	19,843
Borrowings	22,716	26,485
Accrued interest payable	52	18
Level 3 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Mortgage servicing rights	971	1,010
Level 3 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans and loans held for sale, net	1,005,490	951,647
Purchased receivables, net	15,332	15,254
Mortgage servicing rights	971	1,010
RML earn-out liability	8,850	7,324
Junior subordinated debentures	18,558	18,558
Level 3 inputs: | Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Loans and loans held for sale, net	1,008,133	957,643
Purchased receivables, net	15,332	15,254
Mortgage servicing rights	971	1,010
RML earn-out liability	8,850	7,324
Junior subordinated debentures	17,242	17,239
Interest Rate Contract
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	198	78
Interest Rate Contract | Level 1 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	0	0
Interest Rate Contract | Level 2 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	198	78
Interest Rate Contract | Level 2 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	198	78
Interest rate contracts	597	158
Interest Rate Contract | Level 2 inputs: | Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	198	78
Interest rate contracts	597	158
Interest Rate Contract | Level 3 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	0	0
Interest Rate Lock Commitments
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	1,972	841
Interest rate contracts	597	158
Interest Rate Lock Commitments | Level 1 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	0	0
Interest rate contracts	0	0
Interest Rate Lock Commitments | Level 2 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	0	0
Interest rate contracts	597	158
Interest Rate Lock Commitments | Level 3 inputs:
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	1,972	841
Interest rate contracts	0	0
Interest Rate Lock Commitments | Level 3 inputs: | Carrying Amount
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	1,972	841
Interest Rate Lock Commitments | Level 3 inputs: | Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate contracts	$1,972	$841

Fair_Value_of_Assets_and_Liabi3

Fair Value of Assets and Liabilities - Schedule Of Assets And Liabilities Measured At Fair Value On A Recurring Basis (Details) (USD $)	Mar. 31, 2015	Dec. 31, 2014
In Thousands, unless otherwise specified
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	$254,772	$281,730
Interest rate contracts	2,170	919
Mortgage servicing rights	971	1,010
Other Assets, Fair Value Disclosure	3,141	1,929
Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	34,912	45,570
Mortgage servicing rights	0	0
Other Assets, Fair Value Disclosure	0	0
Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	219,860	236,160
Mortgage servicing rights	0	0
Other Assets, Fair Value Disclosure	198	78
Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	1,851
Mortgage servicing rights	971	1,010
Other Assets, Fair Value Disclosure	2,943	1,851
U.S. Treasury and government sponsored entities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	200,255	226,190
U.S. Treasury and government sponsored entities | Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	15,151	15,545
U.S. Treasury and government sponsored entities | Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	185,104	210,645
U.S. Treasury and government sponsored entities | Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Municipal securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	12,213	12,124
Municipal securities | Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Municipal securities | Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	12,213	12,124
Municipal securities | Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
U.S. Agency mortgage-backed securities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	979	1,029
U.S. Agency mortgage-backed securities | Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
U.S. Agency mortgage-backed securities | Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	979	1,029
U.S. Agency mortgage-backed securities | Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Corporate bonds
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	39,307	39,235
Corporate bonds | Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	17,743	26,873
Corporate bonds | Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	21,564	12,362
Corporate bonds | Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Preferred stock
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	2,018	3,152
Preferred stock | Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	2,018	3,152
Preferred stock | Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Preferred stock | Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investment securities available for sale	0	0
Interest Rate Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts	198	78
Interest Rate Contract | Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts	0	0
Interest Rate Contract | Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts	198	78
Interest Rate Contract | Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts	0	0
Interest Rate Lock Commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts	1,972	841
Interest rate contracts	597	158
Interest Rate Lock Commitments | Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts	0	0
Interest rate contracts	0	0
Interest Rate Lock Commitments | Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts	0	0
Interest rate contracts	597	158
Interest Rate Lock Commitments | Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Interest rate contracts	1,972	841
Interest rate contracts	$0	$0

Fair_Value_of_Assets_and_Liabi4

Fair Value of Assets and Liabilities - Schedule Of Asset Impairment Or Valuation Adjustment Recognized At Fair Value On A Nonrecurring Basis (Details) (USD $)	3 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	$3,374	$807
Nonrecurring asset, (gain) loss	-608	-271
Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	3,374	807
Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	649	0
Nonrecurring asset, (gain) loss	-268	0
Other Real Estate Owned | Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Other Real Estate Owned | Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Other Real Estate Owned | Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	649	0
Loans Measured For Impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	2,725	807
Nonrecurring asset, (gain) loss	-340	-271
Loans Measured For Impairment | Level 1 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Loans Measured For Impairment | Level 2 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	0	0
Loans Measured For Impairment | Level 3 inputs:
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Nonrecurring assets	$2,725	$807
Income Approach Valuation Technique | Interest Rate Lock Commitments
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Pull Through Rate	92.30%
Minimum | Market Approach Valuation Technique | Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount for Lack of Marketability	10.00%
Minimum | Income Approach Valuation Technique | Loans Measured For Impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	25.00%
Minimum | Income Approach Valuation Technique | Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	9.25%
Prepayment Rate	10.00%
Minimum | Income Approach Valuation Technique | Earn Out Liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	0.50%
Maximum | Market Approach Valuation Technique | Other Real Estate Owned
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount for Lack of Marketability	25.00%
Maximum | Income Approach Valuation Technique | Loans Measured For Impairment
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	100.00%
Maximum | Income Approach Valuation Technique | Mortgage Servicing Rights
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	10.00%
Prepayment Rate	25.80%
Maximum | Income Approach Valuation Technique | Earn Out Liability
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Discount Rate	2.00%

Segment_Information_Schedule_o

Segment Information - Schedule of Segment Information (Details) (USD $)	3 Months Ended		12 Months Ended
In Thousands, unless otherwise specified	Mar. 31, 2015	Mar. 31, 2014	Dec. 31, 2014
	Segment
Segment Reporting Information [Line Items]
Number of segments	2
Total interest income	$14,386	$11,673
Interest expense on deposits, borrowings and junior subordinated debentures	754	440
Net Interest Income	13,632	11,233
Provision for loan losses	326	0
Other operating income	10,535	2,734
Other operating expense	18,461	9,967
Income before provision for income taxes	5,380	4,000
Provision for income taxes	1,747	1,297
Net income	3,633	2,703
Less: Net income attributable to the noncontrolling interest	72	45	459
Net income attributable to Northrim BanCorp	3,561	2,658	17,408
Total assets	1,447,984		1,449,349
Loans held for sale	61,873		43,866
Borrowings	22,569		26,304
Community Banking
Segment Reporting Information [Line Items]
Number of Stores	14
Total interest income	13,990	11,673
Interest expense on deposits, borrowings and junior subordinated debentures	474	440
Net Interest Income	13,516	11,233
Provision for loan losses	326	0
Other operating income	3,252	2,865
Other operating expense	13,324	9,967
Income before provision for income taxes	3,118	4,131
Provision for income taxes	813	1,351
Net income	2,305	2,780
Less: Net income attributable to the noncontrolling interest	72	45
Net income attributable to Northrim BanCorp	2,233	2,735
Total assets	1,369,167		1,391,862
Loans held for sale	0		0
Borrowings	2,153		2,164
Home Mortgage Lending
Segment Reporting Information [Line Items]
Total interest income	396	0
Interest expense on deposits, borrowings and junior subordinated debentures	280	0
Net Interest Income	116	0
Provision for loan losses	0	0
Other operating income	7,283	-131
Other operating expense	5,137	0
Income before provision for income taxes	2,262	-131
Provision for income taxes	934	-54
Net income	1,328	-77
Less: Net income attributable to the noncontrolling interest	0	0
Net income attributable to Northrim BanCorp	1,328	-77
Total assets	78,817		57,487
Loans held for sale	61,873		43,866
Borrowings	$20,416		$24,140