Regulatory Matters (Tables)

12 Months Ended

Dec. 31, 2017

Regulatory Capital Requirements [Abstract]

Capital Requirements And Actual Capital Ratios

The tables below illustrate the capital requirements for the Company and the Bank and the actual capital ratios for each entity that exceed these requirements.  The dividends that the Bank pays to the Company are limited to the extent necessary for the Bank to meet the regulatory requirements of a “well-capitalized” bank.  The capital ratios for the Company exceed those for the Bank primarily because the $18 million trust preferred securities offerings that the Company completed in the second quarter of 2003 and in the fourth quarter of 2005 are included in the Company’s capital for regulatory purposes although they are accounted for as a liability in its financial statements.  In the third quarter of 2017, the Company redeemed $8 million its trust preferred securities offerings. The trust preferred securities are not accounted for on the Bank’s financial statements nor are they included in its capital.  As a result, the Company has $10 million and $18 million more in regulatory capital than the Bank at December 31, 2017 and 2016, which explains most of the difference in the capital ratios for the two entities.

Northrim BanCorp, Inc.	Actual				Adequately-Capitalized				Well-Capitalized
(In Thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2017:
Common equity tier 1 capital (to risk-weighted assets)		$177,005	13.89	%		$57,345	≥ 4.5	%	NA		NA
Total Capital (to risk-weighted assets)		$202,638	15.90	%		$101,956	≥ 8	%	NA		NA
Tier I Capital (to risk-weighted assets)		$186,637	14.65	%		$76,438	≥ 6	%	NA		NA
Tier I Capital (to average assets)		$186,637	12.41	%		$60,157	≥ 4	%	NA		NA
As of December 31, 2016:
Common equity tier 1 capital (to risk-weighted assets)		$171,190	13.20	%		$58,360	≥ 4.5	%	NA		NA
Total Capital (to risk-weighted assets)		$204,927	15.80	%		$103,761	≥ 8	%	NA		NA
Tier I Capital (to risk-weighted assets)		$188,658	14.54	%		$77,851	≥ 6	%	NA		NA
Tier I Capital (to average assets)		$188,658	12.59	%		$59,939	≥ 4	%	NA		NA
Northrim Bank	Actual				Adequately-Capitalized				Well-Capitalized
(In Thousands)	Amount		Ratio		Amount		Ratio		Amount		Ratio
As of December 31, 2017:
Common equity tier 1 capital (to risk-weighted assets)		$161,996	12.83	%		$56,819	≥ 4.5	%		$82,071	≥ 6.5	%
Total Capital (to risk-weighted assets)		$177,857	14.08	%		$101,055	≥ 8	%		$126,319	≥ 10	%
Tier I Capital (to risk-weighted assets)		$161,996	12.83	%		$75,758	≥ 6	%		$101,011	≥ 8	%
Tier I Capital (to average assets)		$161,996	10.87	%		$59,612	≥ 4	%		$74,515	≥ 5	%
As of December 31, 2016:
Common equity tier 1 capital (to risk-weighted assets)		$168,529	13.07	%		$58,025	≥ 4.5	%		$83,813	≥ 6.5	%
Total Capital (to risk-weighted assets)		$184,695	14.33	%		$103,110	≥ 8	%		$128,887	≥ 10	%
Tier I Capital (to risk-weighted assets)		$168,529	13.07	%		$77,366	≥ 6	%		$103,155	≥ 8	%
Tier I Capital (to average assets)		$168,529	11.30	%		$59,656	≥ 4	%		$74,570	≥ 5	%