Consolidated Statements Of Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Interest Income
Interest and fees on loans	$ 14,135	$ 13,082	$ 27,602	$ 23,953
Interest on investment securities available for sale	759	750	1,644	1,480
Interest on investment securities held to maturity	25	22	48	45
Interest on deposits in other banks	24	41	35	90
Total Interest Income	14,943	13,895	29,329	25,568
Interest Expense
Interest expense on deposits, borrowings and junior subordinated debentures	748	484	1,502	924
Net Interest Income	14,195	13,411	27,827	24,644
Provision for loan losses	376	(1,136)	702	(1,136)
Net Interest Income After Provision for Loan Losses	13,819	14,547	27,125	25,780
Other Operating Income
Mortgage banking income	7,839	0	15,122	0
Employee benefit plan income	931	878	1,708	1,754
Electronic banking income	700	604	1,322	1,104
Service charges on deposit accounts	568	607	1,058	1,083
Purchased receivable income	562	484	1,151	965
Gain on sale of securities, net	16	349	130	446
Equity in earnings from RML	0	355	0	224
Other income	947	829	1,607	1,264
Total Other Operating Income	11,563	4,106	22,098	6,840
Other Operating Expense
Salaries and other personnel expense	11,125	6,839	21,675	12,759
Occupancy expense	1,594	1,112	3,198	1,989
Professional and outside services	791	219	1,542	624
Marketing expense	642	394	1,259	1,008
Change in fair value, RML earn-out liability	587	0	2,089	0
Equipment expense	428	359	862	657
Insurance expense	345	284	669	469
Software expense	337	354	649	614
Internet banking expense	227	213	447	413
Intangible asset amortization expense	72	81	145	133
Merger and acquisition expense	0	312	0	705
Reserve for (recovery from) purchased receivables	(18)	243	(72)	206
OREO (income) expense, net rental income and gains on sale	(121)	(9)	176	(247)
Other operating expense	1,744	1,219	3,575	2,258
Total Other Operating Expense	17,753	11,620	36,214	21,588
Income Before Provision for Income Taxes	7,629	7,033	13,009	11,032
Provision for income taxes	2,686	2,569	4,433	3,866
Net Income	4,943	4,464	8,576	7,166
Less: Net income attributable to the noncontrolling interest	162	95	234	139
Net Income Attributable to Northrim BanCorp, Inc.	$ 4,781	$ 4,369	$ 8,342	$ 7,027
Earnings Per Share, Basic (USD per share)	$ 0.70	$ 0.64	$ 1.22	$ 1.05
Earnings Per Share, Diluted (USD per share)	$ 0.69	$ 0.63	$ 1.20	$ 1.04
Weighted Average Shares Outstanding, Basic (shares)	6,854,338	6,829,897	6,854,264	6,683,897
Weighted Average Shares Outstanding, Diluted (shares)	6,941,671	6,919,568	6,938,879	6,774,434