Segment Reporting (Details) $ in Thousands	3 Months Ended		12 Months Ended
	Mar. 31, 2022 USD ($) Segment	Mar. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)
Segment Reporting [Abstract]
Number of principal business segments | Segment	3
Revenues [Abstract]
Interest and dividend income	$ 10,470	$ 10,978
Total operating income	13,985	15,112
Expenses [Abstract]
Interest expense	833	822
Provision for loan losses	101	150	$ 794
Salaries and employee benefits	6,422	6,227
Other expenses	4,291	4,331
Total operating expenses	11,647	11,530
Income before income taxes	2,338	3,582
Income tax expense (benefit)	307	570
Net income	2,031	3,012
Capital expenditures	197	126
Total assets	1,325,385	1,257,638	$ 1,338,155
Income from Fiduciary Activities [Member]
Revenues [Abstract]
Noninterest revenue	1,072	1,027
Other Income [Member]
Revenues [Abstract]
Noninterest revenue	2,443	3,107
Operating Segments [Member] | Bank [Member]
Revenues [Abstract]
Interest and dividend income	10,456	10,973
Total operating income	12,635	13,839
Expenses [Abstract]
Interest expense	538	818
Provision for loan losses	101	150
Salaries and employee benefits	5,429	5,320
Other expenses	3,888	4,063
Total operating expenses	9,956	10,351
Income before income taxes	2,679	3,488
Income tax expense (benefit)	377	550
Net income	2,302	2,938
Capital expenditures	197	121
Total assets	1,317,803	1,250,353
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	2,179	2,866
Operating Segments [Member] | Trust [Member]
Revenues [Abstract]
Interest and dividend income	14	5
Total operating income	1,365	1,288
Expenses [Abstract]
Interest expense	0	0
Provision for loan losses	0	0
Salaries and employee benefits	848	743
Other expenses	294	279
Total operating expenses	1,142	1,022
Income before income taxes	223	266
Income tax expense (benefit)	48	56
Net income	175	210
Capital expenditures	0	5
Total assets	7,125	7,003
Operating Segments [Member] | Trust [Member] | Income from Fiduciary Activities [Member]
Revenues [Abstract]
Noninterest revenue	1,072	1,027
Operating Segments [Member] | Trust [Member] | Other Income [Member]
Revenues [Abstract]
Noninterest revenue	279	256
Operating Segments [Member] | Unconsolidated Parent [Member]
Revenues [Abstract]
Interest and dividend income	850	3,148
Total operating income	900	3,198
Expenses [Abstract]
Interest expense	295	4
Provision for loan losses	0	0
Salaries and employee benefits	145	164
Other expenses	174	54
Total operating expenses	614	222
Income before income taxes	286	2,976
Income tax expense (benefit)	(118)	(36)
Net income	404	3,012
Capital expenditures	0	0
Total assets	137,819	117,956
Operating Segments [Member] | Unconsolidated Parent [Member] | Income from Fiduciary Activities [Member]
Revenues [Abstract]
Noninterest revenue	0	0
Operating Segments [Member] | Unconsolidated Parent [Member] | Other Income [Member]
Revenues [Abstract]
Noninterest revenue	50	50
Eliminations [Member]
Revenues [Abstract]
Interest and dividend income	(850)	(3,148)
Total operating income	(915)	(3,213)
Expenses [Abstract]
Interest expense	0	0
Provision for loan losses	0	0
Salaries and employee benefits	0	0
Other expenses	(65)	(65)
Total operating expenses	(65)	(65)
Income before income taxes	(850)	(3,148)
Income tax expense (benefit)	0	0
Net income	(850)	(3,148)
Capital expenditures	0	0
Total assets	(137,362)	(117,674)
Eliminations [Member] | Income from Fiduciary Activities [Member]
Revenues [Abstract]
Noninterest revenue	0	0
Eliminations [Member] | Other Income [Member]
Revenues [Abstract]
Noninterest revenue	$ (65)	$ (65)