Consolidated Statements of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Interest Income
Interest and fees on loans and loans held for sale	$ 13,710	$ 14,135	$ 27,488	$ 27,602
Interest on investment securities available for sale	953	759	1,933	1,644
Interest on investment securities held to maturity	14	25	27	48
Interest on deposits in other banks	41	24	88	35
Total Interest Income	14,718	14,943	29,536	29,329
Interest Expense
Interest expense on deposits, borrowings and junior subordinated debentures	639	748	1,283	1,502
Net Interest Income	14,079	14,195	28,253	27,827
Provision for loan losses	200	376	903	702
Net Interest Income After Provision for Loan Losses	13,879	13,819	27,350	27,125
Other Operating Income
Mortgage banking income	8,510	7,859	14,206	15,165
Employee benefit plan income	936	931	1,900	1,708
Bankcard fees	675	669	1,308	1,258
Purchased receivable income	531	562	1,065	1,151
Service charges on deposit accounts	510	568	1,009	1,058
Gain (loss) on sale of securities, net	12	16	(11)	130
Other income	690	958	1,492	1,628
Total Other Operating Income	11,864	11,563	20,969	22,098
Other Operating Expense
Salaries and other personnel expense	12,011	11,125	23,262	21,675
Occupancy expense	1,697	1,594	3,305	3,198
Data processing expense	1,146	1,104	2,230	2,200
Professional and outside services	785	791	1,492	1,542
Change in fair value, RML earn-out liability	687	587	817	2,089
Marketing expense	615	642	1,353	1,259
Loss on sale of premises and equipment	358	7	358	7
Insurance expense	263	345	578	669
OREO (income) expense, net rental income and gains on sale	127	(121)	101	176
Intangible asset amortization expense	35	72	70	145
Other operating expense	1,645	1,607	3,174	3,254
Total Other Operating Expense	19,369	17,753	36,740	36,214
Income Before Provision for Income Taxes	6,374	7,629	11,579	13,009
Provision for income taxes	1,868	2,686	3,567	4,433
Net Income	4,506	4,943	8,012	8,576
Less: Net income attributable to the noncontrolling interest	156	162	286	234
Net Income Attributable to Northrim BanCorp, Inc.	$ 4,350	$ 4,781	$ 7,726	$ 8,342
Earnings Per Share, Basic (in USD per share)	$ 0.63	$ 0.70	$ 1.12	$ 1.22
Earnings Per Share, Diluted (in USD per share)	$ 0.63	$ 0.69	$ 1.11	$ 1.20
Weighted Average Shares Outstanding, Basic (in shares)	6,877,140	6,854,338	6,877,140	6,854,264
Weighted Average Shares Outstanding, Diluted (in shares)	6,968,891	6,941,671	6,966,905	6,938,879