Consolidated Statements of Income (Unaudited) - USD ($) shares in Thousands, $ in Thousands		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Interest income:
Interest and fees on loans		$ 12,338	$ 12,031
Interest on taxable securities		1,582	1,764
Interest on tax-exempt securities		271	387
Interest on interest-bearing deposits in other banks		154	245
Total interest income		14,345	14,427
Interest expense:
Interest on demand - interest-bearing		100	126
Interest on money market		403	289
Interest on savings		118	111
Interest on certificates of deposit		464	490
Interest on Federal Home Loan Bank of San Francisco borrowings			55
Interest on other borrowings		184	239
Interest on junior subordinated debentures		90	113
Total interest expense		1,359	1,423
Net interest income		12,986	13,004
Provision for loan and lease losses		2,850
Net interest income after provision for loan and lease losses		10,136	13,004
Noninterest income:
Payroll and benefit processing fees		170	171
Life insurance		123	129
Gain on sale of investment securities, net		84	92
Federal Home Loan Bank of San Francisco dividends		130	121
(Loss) gain on sale of OREO		(23)	23
Other (loss) income		(29)	87
Total noninterest income		892	1,057
Noninterest expense:
Salaries and related benefits		5,887	5,729
Premises and equipment		854	975
Federal Deposit Insurance Corporation insurance premium		36	100
Data processing		531	576
Professional services		334	303
Telecommunications		171	173
Acquisition and merger			1,930
Other expenses		1,970	1,137
Total noninterest expense		9,783	10,923
Income before provision for income taxes		1,245	3,138
Provision for income taxes		329	832
Net income		$ 916	$ 2,306
Earnings per share - basic (in dollars per share)		$ 0.05	$ 0.13
Weighted average shares - basic (in shares)	[1]	17,695	17,489
Earnings per share - diluted (in dollars per share)		$ 0.05	$ 0.13
Weighted average shares - diluted (in shares)		17,747	17,552
Deposit Account [Member]
Noninterest income:
Revenue from Contract with Customer		$ 169	$ 169
Credit and Debit Card [Member]
Noninterest income:
Revenue from Contract with Customer		$ 268	$ 265

[1] Excludes unvested restricted shares because they do not have dividend or voting rights