Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest Income
Interest and fees on loans and loans held for sale	$ 14,341	$ 13,866	$ 41,180	$ 41,354
Interest on investment securities available for sale	1,043	930	3,417	2,863
Interest on investment securities held to maturity	17	14	49	41
Interest on deposits in other banks	118	50	230	138
Total Interest Income	15,519	14,860	44,876	44,396
Interest Expense
Interest expense on deposits	429	473	1,325	1,423
Interest expense on securities sold under agreements to repurchase	9	7	25	22
Interest expense on borrowings	54	36	130	107
Interest expense on junior subordinated debentures	110	131	402	378
Total Interest Expense	602	647	1,882	1,930
Net Interest Income	14,917	14,213	42,994	42,466
Provision for loan losses	2,500	652	3,200	1,555
Net Interest Income After Provision for Loan Losses	12,417	13,561	39,794	40,911
Other Operating Income
Mortgage banking income	6,219	8,341	18,020	22,547
Gain on sale of Northrim Benefits Group	4,443	0	4,443	0
Employee benefit plan income	609	999	2,506	2,899
Purchased receivable income	752	579	2,217	1,644
Bankcard fees	603	687	1,789	1,995
Service charges on deposit accounts	406	516	1,254	1,525
Gain (loss) on sale of securities, net	(3)	0	11	(11)
Other income	765	813	2,168	2,305
Total Other Operating Income	13,794	11,935	32,408	32,904
Other Operating Expense
Salaries and other personnel expense	11,115	12,158	33,750	35,420
Occupancy expense	1,706	1,567	4,991	4,872
Data processing expense	1,448	1,207	4,095	3,586
Marketing expense	332	500	1,733	1,853
Professional and outside services	674	675	1,908	2,017
Insurance expense	475	265	922	844
OREO expense, net rental income and gains on sale	(44)	(32)	216	70
Loss on disposal of premises and equipment	0	6	3	365
Intangible asset amortization expense	26	35	79	106
Compensation expense - RML acquisition payments	149	3,250	323	4,067
Other operating expense	1,749	1,555	4,682	4,726
Total Other Operating Expense	17,630	21,186	52,702	57,926
Income Before Provision for Income Taxes	8,581	4,310	19,500	15,889
Provision for income taxes	2,980	1,027	6,236	4,594
Net Income	5,601	3,283	13,264	11,295
Less: Net income attributable to the noncontrolling interest	78	188	327	474
Net Income Attributable to Northrim BanCorp, Inc.	$ 5,523	$ 3,095	$ 12,937	$ 10,821
Earnings Per Share, Basic (in USD per share)	$ 0.80	$ 0.45	$ 1.88	$ 1.57
Earnings Per Share, Diluted (in USD per share)	$ 0.79	$ 0.44	$ 1.85	$ 1.55
Weighted Average Shares Outstanding, Basic (in shares)	6,872,273	6,882,482	6,897,577	6,878,921
Weighted Average Shares Outstanding, Diluted (in shares)	6,959,035	6,973,354	6,983,778	6,968,557