Consolidated Statements Of Comprehensive Income (USD $) In Thousands, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net income	$ 3,898	$ 3,464	$ 11,063	$ 9,833
Other comprehensive income, net of tax:
Unrealized gains (loss) arising during the period	(307)	156	400	(763)
Reclassification of net gains included in net income (net of tax expense $6 and $0 for the third quarter of 2014 and 2013, respectively and $190 and $131 for the first nine months of 2014 and 2013, respectively)	(9)	0	(271)	(187)
Income tax expense (benefit) related to unrealized gains	108	(46)	(152)	331
Other comprehensive income (loss)	(208)	110	(23)	(619)
Comprehensive income	3,690	3,574	11,040	9,214
Less: comprehensive income (loss) attributable to the noncontrolling interest	191	(10)	329	189
Comprehensive income attributable to Northrim BanCorp	$ 3,499	$ 3,584	$ 10,711	$ 9,025