Condensed Financial Statements of Parent Company, Statements of Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Income [Abstract]
Other income	$ 134	$ 221
Total interest and dividend income	40,009	40,241
Expenses [Abstract]
Salary and benefits	25,512	24,024
Legal expenses	2,196	2,311
Other operating expenses	3,369	2,653
Total noninterest expense	42,505	38,638
Income before income taxes	5,910	8,940
Income tax benefit	521	1,080
Net income	5,389	7,860
Parent Company [Member]
Income [Abstract]
Dividends from subsidiary	3,425	3,500
Interest on investments	0	0
Other income	200	200
Total interest and dividend income	3,625	3,700
Expenses [Abstract]
Salary and benefits	669	477
Legal expenses	108	101
Service fees	135	200
Other operating expenses	148	163
Total noninterest expense	1,060	941
Income before income taxes	2,565	2,759
Income tax benefit	(180)	(155)
Net income before equity in undistributed net income of subsidiaries	2,745	2,914
Equity in undistributed net income of subsidiaries	2,644	4,946
Net income	$ 5,389	$ 7,860