Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Interest income:
Interest and fees on loans	$ 9,887	$ 9,007	$ 29,029	$ 26,254
Interest on taxable securities	1,049	689	2,710	2,281
Interest on tax-exempt securities	551	552	1,615	1,734
Interest on interest-bearing deposits in other banks	278	82	548	222
Total interest income	11,765	10,330	33,902	30,491
Interest expense:
Interest on demand deposits	196	136	528	388
Interest on savings deposits	52	43	146	129
Interest on certificates of deposit	567	524	1,641	1,636
Interest on term debt	292	292	883	1,369
Interest on junior subordinated debentures	74	59	211	172
Total interest expense	1,181	1,054	3,409	3,694
Net interest income	10,584	9,276	30,493	26,797
Provision for loan and lease losses			500
Net interest income after provision for loan and lease losses	10,584	9,276	29,993	26,797
Noninterest income:
Service charges on deposit accounts	132	133	401	293
ATM and point of sale fees	273	287	827	714
Fees on payroll and benefit processing	147	133	485	432
Life insurance	134	152	915	461
Gain on sale of investment securities, net	38	70	139	192
Impairment losses on investment securities			0	(546)
Federal Home Loan Bank of San Francisco dividends	80	102	237	291
Other income	191	82	516	508
Total noninterest income	995	959	3,520	2,345
Noninterest expense:
Salaries and related benefits	4,291	3,873	13,296	12,188
Premises and equipment	1,067	1,071	3,169	2,847
Federal Deposit Insurance Corporation insurance premium	78	176	230	513
Data processing fees	437	464	1,294	1,142
Professional service fees	276	303	1,119	1,209
Telecommunications	219	199	653	545
Branch acquisition costs				580
Loss on cancellation of interest rate swap				2,325
Other expenses	908	1,039	3,290	3,445
Total noninterest expense	7,276	7,125	23,051	24,794
Income before provision for income taxes	4,303	3,110	10,462	4,348
Provision for income taxes	1,427	744	3,125	1,386
Net income	$ 2,876	$ 2,366	$ 7,337	$ 2,962
Earnings per share - basic (in dollars per share)	$ 0.18	$ 0.18	$ 0.49	$ 0.22
Weighted average shares - basic (in shares)	16,191	13,369	14,884	13,366
Earnings per share - diluted (in dollars per share)	$ 0.18	$ 0.18	$ 0.49	$ 0.22
Weighted average shares - diluted (in shares)	16,288	13,439	14,984	13,412