FIRST FINANCIAL NORTHWEST, INC. AND SUBSIDIARIES CONSOLIDATED INCOME STATEMENTS - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Interest income
Loans, including fees	$ 13,606,000	$ 12,429,000	$ 26,887,000	$ 25,472,000
Investments available-for-sale	1,109,000	1,010,000	2,268,000	1,939,000
Interest-earning deposits	48,000	44,000	88,000	82,000
Dividends on FHLB stock	102,000	105,000	193,000	208,000
Total interest income	14,865,000	13,588,000	29,436,000	27,701,000
Interest expense
Deposits	4,330,000	2,435,000	8,152,000	4,711,000
FHLB advances and other borrowings	829,000	1,024,000	1,726,000	1,877,000
Total interest expense	5,159,000	3,459,000	9,878,000	6,588,000
Net interest income	9,706,000	10,129,000	19,558,000	21,113,000
Recapture of provision for loan losses	(800,000)	(400,000)	(400,000)	(4,400,000)
Net interest income after recapture of provision for loan losses	10,506,000	10,529,000	19,958,000	25,513,000
Noninterest income
Net loss on sale of investments	0	(21,000)	(8,000)	(21,000)
BOLI income	189,000	224,000	458,000	473,000
Wealth management revenue	261,000	156,000	457,000	255,000
Deposit Fees	205,000	175,000	376,000	336,000
Loan related fees	209,000	126,000	272,000	260,000
Other	15,000	3,000	24,000	6,000
Total noninterest income	879,000	663,000	1,579,000	1,309,000
Noninterest expense
Salaries and employee benefits	4,734,000	4,931,000	9,734,000	9,593,000
Occupancy and equipment	898,000	829,000	1,764,000	1,598,000
Professional fees	326,000	442,000	822,000	770,000
Data processing	397,000	351,000	915,000	675,000
OREO related expenses, net	1,000	2,000	32,000	3,000
Regulatory assessments	136,000	110,000	273,000	265,000
Insurance and bond premiums	88,000	154,000	193,000	260,000
Marketing	76,000	77,000	162,000	184,000
Other general and administrative	627,000	591,000	1,097,000	1,166,000
Total noninterest expense	7,283,000	7,487,000	14,992,000	14,514,000
Income before federal income tax provision	4,102,000	3,705,000	6,545,000	12,308,000
Federal income tax provision	798,000	603,000	1,296,000	2,364,000
Net income	$ 3,304,000	$ 3,102,000	$ 5,249,000	$ 9,944,000
Earnings per common share
Basic earnings per share (in dollars per share)	$ 0.33	$ 0.30	$ 0.52	$ 0.97
Diluted earnings per share (in dollars per share)	$ 0.33	$ 0.30	$ 0.52	$ 0.96
Weighted average number of common shares outstanding
Basic shares outstanding (in shares)	9,952,419	10,271,432	10,034,895	10,241,297
Diluted shares outstanding (in shares)	10,046,355	10,405,949	10,132,107	10,372,474