Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2017	Mar. 31, 2016
Statement of Comprehensive Income [Abstract]
Net income	$ 3,922	$ 3,506
Securities available for sale:
Unrealized gains arising during the period	597	1,326
Reclassification of net (gains) losses included in net income (net of tax (benefit) expense of $6 and ($9) for the first quarter of 2017 and 2016, respectively)	(8)	14
Income tax benefit related to unrealized gains and losses	(223)	(470)
Other comprehensive income, net of tax	366	870
Comprehensive income	4,288	4,376
Less: comprehensive income attributable to the noncontrolling interest	97	130
Comprehensive income attributable to Northrim BanCorp, Inc.	$ 4,191	$ 4,246

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income, attributable to parent entity. Excludes changes in equity resulting from investments by owners and distributions to owners.

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