v3.22.4
Document and Entity Information Document
Jan. 26, 2023
Cover [Abstract]  
Document Type 8-K
Document Period End Date Jan. 26, 2023
Entity Registrant Name Northrim BanCorp, Inc.
Entity Central Index Key 0001163370
Amendment Flag false
Entity Incorporation, State or Country Code AK
Entity File Number 0-33501
Entity Tax Identification Number 92-0175752
Entity Address, Address Line One 3111 C Street,
Entity Address, City or Town Anchorage,
Entity Address, State or Province AK
Entity Address, Postal Zip Code 99503
City Area Code 907-
Local Phone Number 562-0062
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company false