Consolidated Statements Of Changes In Shareholders' Equity (USD $) In Thousands, except Share data	Total	Common Stock	Additional Paid-In Capital	Retained Earnings	Accumulated Other Comprehensive Income	Non-controlling Interest
Beginning balance, value at Dec. 31, 2010	$ 117,122	$ 6,427	$ 52,658	$ 57,339	$ 648	$ 50
Beginning balance, shares at Dec. 31, 2010		6,427
Cash dividend declared	(3,268)			(3,268)
Stock based compensation expense	519		519
Exercise of stock options, shares		40
Exercise of stock options	(144)	40	(184)
Excess tax benefits from share-based payment arrangements	171		171
Distributions to noncontrolling interest	(427)					(427)
Change in unrealized holding gain on available for sale securities, net of tax	(365)				(365)
Net income attributable to the noncontrolling interest	429					429
Net Income Attributable to Northrim BanCorp	11,398			11,398
Ending balance, value at Dec. 31, 2011	125,435	6,467	53,164	65,469	283	52
Ending balance, shares at Dec. 31, 2011		6,467
Cash dividend declared	(3,673)			(3,673)
Stock based compensation expense	454		454
Exercise of stock options, shares		45
Exercise of stock options	(168)	45	(213)
Excess tax benefits from share-based payment arrangements	233		233
Distributions to noncontrolling interest	(471)					(471)
Change in unrealized holding gain on available for sale securities, net of tax	1,085				1,085
Net income attributable to the noncontrolling interest	512					512
Net Income Attributable to Northrim BanCorp	12,946			12,946
Ending balance, value at Dec. 31, 2012	136,353	6,512	53,638	74,742	1,368	93
Ending balance, shares at Dec. 31, 2012	6,511,649	6,512
Cash dividend declared	(4,212)			(4,212)
Stock based compensation expense	506		506
Exercise of stock options, shares		26
Exercise of stock options	(129)	26	(155)
Excess tax benefits from share-based payment arrangements	100		100
Distributions to noncontrolling interest	(13)					(13)
Change in unrealized holding gain on available for sale securities, net of tax	(699)				(699)
Net income attributable to the noncontrolling interest	87					87
Net Income Attributable to Northrim BanCorp	12,325			12,325
Ending balance, value at Dec. 31, 2013	$ 144,318	$ 6,538	$ 54,089	$ 82,855	$ 669	$ 167
Ending balance, shares at Dec. 31, 2013	6,537,652	6,538