Consolidated Statements Of Income (USD $) In Thousands, except Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Interest Income
Interest and fees on loans	$ 10,342	$ 10,225
Interest on investment securities available for sale	659	749
Interest on investment securities held to maturity	29	38
Interest on deposits in other banks	62	40
Total Interest Income	11,092	11,052
Interest Expense
Interest expense on deposits, borrowings and junior subordinated debentures	530	698
Net Interest Income	10,562	10,354
Provision for loan losses	150	89
Net Interest Income After Provision for Loan Losses	10,412	10,265
Other Operating Income
Purchased receivable income	702	712
Employee benefit plan income	569	540
Service charges on deposit accounts	525	568
Electronic banking income	504	483
Equity in earnings from RML	242	301
Gain on sale of securities	218	27
Rental income	28	198
Other income	351	378
Total Other Operating Income	3,139	3,207
Other Operating Expense
Salaries and other personnel expense	5,735	5,706
Occupancy expense	888	996
Marketing expense	447	437
Professional and outside services	349	418
Equipment expense	278	294
Software expense	265	251
Amortization of low income housing tax investments	245	228
Internet banking expense	184	172
Insurance expense	144	118
Reserve for purchased receivables	84
Intangible asset amortization expense	58	64
OREO (income) expense, net of rental income and gains on sale	(6)	97
Other operating expense	1,026	977
Total Other Operating Expense	9,697	9,758
Income Before Provision for Income Taxes	3,854	3,714
Provision for income taxes	1,090	1,026
Net Income	2,764	2,688
Less: Net income attributable to the noncontrolling interest	90	112
Net Income Attributable to Northrim BanCorp	$ 2,674	$ 2,576
Earnings Per Share, Basic	$ 0.41	$ 0.40
Earnings Per Share, Diluted	$ 0.41	$ 0.39
Weighted Average Shares Outstanding, Basic	6,512,455	6,467,540
Weighted Average Shares Outstanding, Diluted	6,590,807	6,567,654