Consolidated Balance Sheets (USD $) In Thousands, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011	Sep. 30, 2011
ASSETS
Cash and due from banks	$ 34,753	$ 30,644	$ 34,365
Interest bearing deposits in other banks	127,354	60,886	94,205
Investment securities available for sale	172,343	222,083	211,819
Investment securities held to maturity	2,750	3,819	4,385
Total portfolio investments	175,093	225,902	216,204
Investment in Federal Home Loan Bank stock	1,985	2,003	2,003
Loans held for sale	37,291	27,822
Loans	671,644	645,562	629,664
Allowance for loan losses	(16,490)	(16,503)	(16,093)
Net loans	692,445	656,881	613,571
Purchased receivables, net	23,326	30,209	25,536
Accrued interest receivable	2,832	2,898	3,030
Other real estate owned	5,766	5,183	5,838
Premises and equipment, net	27,989	27,993	28,320
Goodwill and intangible assets	8,228	8,421	8,486
Other assets	34,027	34,238	34,053
Total assets	1,133,798	1,085,258	1,065,611
LIABILITIES
Demand deposits	352,633	324,039	307,529
Interest-bearing demand deposits	137,333	141,572	133,495
Savings deposits	85,035	79,610	76,847
Alaska Cds deposits	98,504	102,384	95,481
Money market deposits	171,210	154,987	153,924
Certificates of deposit less than $100,000	41,085	45,468	51,264
Certificates of deposit greater than $100,000	59,144	63,188	75,027
Total deposits	944,944	911,248	893,567
Securities sold under repurchase agreements	22,623	16,348	17,034
Borrowings	4,517	4,626	4,662
Junior subordinated debentures	18,558	18,558	18,558
Other liabilities	9,045	9,043	8,445
Total liabilities	999,687	959,823	942,266
SHAREHOLDERS' EQUITY
Preferred stock, $1 par value, 2,500,000 shares authorized, none issued or outstanding
Common stock, $1 par value, 10,000,000 shares authorized, 6,473,680; 6,466,763; and 6,440,241 shares issued and outstanding at September 30, 2012, December 31, 2011 and September 30, 2011, respectively	6,474	6,467	6,440
Additional paid-in capital	53,536	53,164	53,091
Retained earnings	72,567	65,469	63,071
Accumulated other comprehensive income	1,429	283	680
Total Northrim BanCorp shareholders’ equity	134,006	125,383	123,282
Noncontrolling interest	105	52	63
Total shareholders' equity	134,111	125,435	123,345
Total liabilities and shareholders’ equity	$ 1,133,798	$ 1,085,258	$ 1,065,611