Basis of Presentation and Significant Accounting Policies	6 Months Ended
Jun. 30, 2025
Accounting Policies [Abstract]
Basis of Presentation and Significant Accounting Policies	Basis of Presentation and Significant Accounting Policies The Company prepares its consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The accompanying consolidated financial statements have not been audited, and they include the accounts of the Company and it's wholly-owned subsidiaries, and the wholly owned subsidiaries of Northrim Bank (the “Bank”). Significant intercompany balances have been eliminated in consolidation. As of December 31, 2024, the Company had one wholly-owned business trust subsidiary, Northrim Statutory Trust 2 (“Trust 2”), that was formed to issue trust preferred securities and related common securities of Trust 2. The Company has not consolidated the accounts of Trust 2 in its consolidated financial statements in accordance with U.S. GAAP. As a result, the junior subordinated debentures issued by the Company to Trust 2 are reflected on the Company’s consolidated balance sheet as junior subordinated debentures. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. The Company determined that it operates in three primary operating segments: Community Banking, Home Mortgage Lending, and Specialty Finance. The Company has evaluated subsequent events and transactions for potential recognition or disclosure. Operating results for the interim period ended June 30, 2025 are not necessarily indicative of the results anticipated for the year ending December 31, 2025. These consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2024. The Company’s significant accounting policies are discussed in Note 1 to the audited consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2024. There have been no significant changes in our application of these accounting policies in 2025. Reclassification of Prior Period Presentation Certain prior year amounts have been reclassified for consistency with the current period presentation. These reclassifications had no effect on the reported results of operations or total shareholders' equity. Recent Accounting Pronouncements Accounting pronouncements to be implemented in future periods In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) - Improvements to Income Tax Disclosures (“ASU 2023-09”). The amendments in ASU 2023-09 improve transparency of income tax disclosures related to rate reconciliation and income taxes paid disclosures by requiring consistent categories and greater disaggregation of information in rate reconciliation, and by requiring disclosure of income taxes paid disaggregated by jurisdiction. The amendments in ASU 2023-09 allow investors to better assess, in their capital allocation decisions, how an entity's worldwide operations and related tax risks and tax planning and operations opportunities affect its income tax rate and prospects for future cash flow. ASU 2023-09 is effective for the Company for fiscal years beginning after December 15, 2024 and may be applied on a prospective or retrospective basis. The Company intends to adopt ASU 2023-09 prospectively and we expect the adoption to expand our disclosures around Income Taxes.

Basis of Presentation and Significant Accounting Policies

6 Months Ended

Jun. 30, 2025

Basis of Presentation and Significant Accounting Policies

The Company prepares its consolidated financial statements in conformity with accounting principles generally accepted in the United States of America (“U.S. GAAP”). The accompanying consolidated financial statements have not been audited, and they include the accounts of the Company and it's wholly-owned subsidiaries, and the wholly owned subsidiaries of Northrim Bank (the “Bank”). Significant intercompany balances have been eliminated in consolidation. As of December 31, 2024, the Company had one wholly-owned business trust subsidiary, Northrim Statutory Trust 2 (“Trust 2”), that was formed to issue trust preferred securities and related common securities of Trust 2. The Company has not consolidated the accounts of Trust 2 in its consolidated financial statements in accordance with U.S. GAAP. As a result, the junior subordinated debentures issued by the Company to Trust 2 are reflected on the Company’s consolidated balance sheet as junior subordinated debentures.

In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. The Company determined that it operates in three primary operating segments: Community Banking, Home Mortgage Lending, and Specialty Finance. The Company has evaluated subsequent events and transactions for potential recognition or disclosure. Operating results for the interim period ended June 30, 2025 are not necessarily indicative of the results anticipated for the year ending December 31, 2025. These consolidated financial statements should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2024.

The Company’s significant accounting policies are discussed in Note 1 to the audited consolidated financial statements included in the Company's Annual Report on Form 10-K for the year ended December 31, 2024. There have been no significant changes in our application of these accounting policies in 2025.

Reclassification of Prior Period Presentation

Certain prior year amounts have been reclassified for consistency with the current period presentation. These reclassifications had no effect on the reported results of operations or total shareholders' equity.

Recent Accounting Pronouncements

Accounting pronouncements to be implemented in future periods

In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740) - Improvements to Income Tax Disclosures (“ASU 2023-09”). The amendments in ASU 2023-09 improve transparency of income tax disclosures related to rate reconciliation and income taxes paid disclosures by requiring consistent categories and greater disaggregation of information in rate reconciliation, and by requiring disclosure of income taxes paid disaggregated by jurisdiction. The amendments in ASU 2023-09 allow investors to better assess, in their capital allocation decisions, how an entity's worldwide operations and related tax risks and tax planning and operations opportunities affect its income tax rate and prospects for future cash flow. ASU 2023-09 is effective for the Company for fiscal years beginning after December 15, 2024 and may be applied on a prospective or retrospective basis. The Company intends to adopt ASU 2023-09 prospectively and we expect the adoption to expand our disclosures around Income Taxes.