Segment Reporting (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2020 USD ($) Segment Area	Dec. 31, 2019 USD ($)
Revenues [Abstract]
Interest and dividend income	$ 40,009	$ 40,241
Total operating income	54,707	54,318
Expenses [Abstract]
Interest expense	5,292	6,422
Provision for loan losses	1,000	318
Salaries and employee benefits	25,512	24,024
Other expenses	16,993	14,614
Total operating expenses	48,797	45,378
Income before income taxes	5,910	8,940
Income tax expense (benefit)	521	1,080
Net income	5,389	7,860
Capital expenditures	924	1,782
Total assets	$ 1,226,191	1,054,488
Number of principal business segments | Segment	3
Number of geographical areas in which an entity operates | Area	1
Income from Fiduciary Activities [Member]
Revenues [Abstract]
Noninterest revenue	$ 3,877	3,850
Other Income [Member]
Revenues [Abstract]
Noninterest revenue	10,821	10,227
Operating Segments [Member] | Bank [Member]
Revenues [Abstract]
Interest and dividend income	39,966	40,121
Total operating income	49,865	49,381
Expenses [Abstract]
Interest expense	5,237	6,310
Provision for loan losses	1,000	318
Salaries and employee benefits	21,652	20,405
Other expenses	15,840	13,508
Total operating expenses	43,729	40,541
Income before income taxes	6,136	8,840
Income tax expense (benefit)	565	1,054
Net income	5,571	7,786
Capital expenditures	901	1,756
Total assets	1,218,766	1,048,158
Operating Segments [Member] | Bank [Member] | Income from Fiduciary Activities [Member]
Revenues [Abstract]
Noninterest revenue	0	0
Operating Segments [Member] | Bank [Member] | Other Income [Member]
Revenues [Abstract]
Noninterest revenue	9,899	9,260
Operating Segments [Member] | Trust [Member]
Revenues [Abstract]
Interest and dividend income	43	120
Total operating income	4,903	4,998
Expenses [Abstract]
Interest expense	0	0
Provision for loan losses	0	0
Salaries and employee benefits	3,191	3,142
Other expenses	1,078	1,015
Total operating expenses	4,269	4,157
Income before income taxes	634	841
Income tax expense (benefit)	136	181
Net income	498	660
Capital expenditures	23	26
Total assets	6,957	6,695
Operating Segments [Member] | Trust [Member] | Income from Fiduciary Activities [Member]
Revenues [Abstract]
Noninterest revenue	3,877	3,850
Operating Segments [Member] | Trust [Member] | Other Income [Member]
Revenues [Abstract]
Noninterest revenue	983	1,028
Operating Segments [Member] | Parent [Member]
Revenues [Abstract]
Interest and dividend income	6,069	8,446
Total operating income	6,269	8,646
Expenses [Abstract]
Interest expense	55	112
Provision for loan losses	0	0
Salaries and employee benefits	669	477
Other expenses	336	352
Total operating expenses	1,060	941
Income before income taxes	5,209	7,705
Income tax expense (benefit)	(180)	(155)
Net income	5,389	7,860
Capital expenditures	0	0
Total assets	118,558	111,764
Operating Segments [Member] | Parent [Member] | Income from Fiduciary Activities [Member]
Revenues [Abstract]
Noninterest revenue	0	0
Operating Segments [Member] | Parent [Member] | Other Income [Member]
Revenues [Abstract]
Noninterest revenue	200	200
Eliminations [Member]
Revenues [Abstract]
Interest and dividend income	(6,069)	(8,446)
Total operating income	(6,330)	(8,707)
Expenses [Abstract]
Interest expense	0	0
Provision for loan losses	0	0
Salaries and employee benefits	0	0
Other expenses	(261)	(261)
Total operating expenses	(261)	(261)
Income before income taxes	(6,069)	(8,446)
Income tax expense (benefit)	0	0
Net income	(6,069)	(8,446)
Capital expenditures	0	0
Total assets	(118,090)	(112,129)
Eliminations [Member] | Income from Fiduciary Activities [Member]
Revenues [Abstract]
Noninterest revenue	0	0
Eliminations [Member] | Other Income [Member]
Revenues [Abstract]
Noninterest revenue	$ (261)	$ (261)