Consolidated Statements of Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Interest Income:
Interest and fees on loans	$ 32,383	$ 30,817	$ 28,182
Interest on investment securities	1,146	901	825
Interest on deposits in FRB	3,086	1,207	458
Interest on deposits in other banks	0	5	8
Total interest income	36,615	32,930	29,473
Interest Expense:
Interest on deposits	2,278	1,426	1,167
Interest on other borrowed funds	425	304	242
Total interest expense	2,703	1,730	1,409
Net Interest Income	33,912	31,200	28,064
(Recovery of Provision) Provision for Credit Losses	(1,764)	24	(21)
Net Interest Income after (Recovery of Provision) Provision for Credit Losses	35,676	31,176	28,085
Noninterest Income:
Increase in cash surrender value of bank-owned life insurance	520	534	530
Loss on fair value of marketable equity securities	(78)	0	0
Gain on proceeds from bank-owned life insurance	171	0	0
Loss on fair value of junior subordinated debentures	(424)	(882)	(518)
Other	872	803	710
Total noninterest income	4,605	4,306	4,514
Noninterest Expense:
Salaries and employee benefits	11,721	10,821	10,628
Occupancy expense	4,372	4,254	4,222
Data processing	171	119	148
Professional fees	1,617	1,433	1,493
Regulatory assessments	330	391	767
Director fees	321	289	284
Correspondent bank service charges	63	71	0
Loss on California tax credit partnership	25	109	158
Net cost (gain) on operation and sale of OREO	145	(150)	263
Other	2,167	2,466	2,382
Total noninterest expense	20,932	19,803	20,345
Income Before Provision for Taxes	19,349	15,679	12,254
Provision for Taxes on Income	5,332	7,039	4,869
Net Income	$ 14,017	$ 8,640	$ 7,385
Net Income per common share
Basic (dollars per share)	$ 0.83	$ 0.51	$ 0.44
Diluted (dollars per share)	$ 0.83	$ 0.51	$ 0.44
Shares on which net income per common share were based
Basic (in shares)	16,899,960	16,885,587	16,881,379
Diluted (in shares)	16,938,772	16,904,915	16,889,027
Customer service fees
Noninterest Income:
Customer service fees	$ 3,544	$ 3,851	$ 3,792