Allowance for Loan Loss (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	$ 4,386	$ 4,790
Financing Receivable, Allowance for Credit Losses, Charge-offs	(45)	(408)
Financing Receivable, Allowance for Credit Losses, Recoveries	177	254
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	132	(154)
Provision for loan losses	1,100	(250)
Financing Receivable, Allowance for Credit Losses	5,618	4,386
Commercial and Industrial Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	577	778
Financing Receivable, Allowance for Credit Losses, Charge-offs	(7)	(364)
Financing Receivable, Allowance for Credit Losses, Recoveries	94	117
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	87	(247)
Provision for loan losses	143	46
Financing Receivable, Allowance for Credit Losses	807	577
Construction And Land Development Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	569	700
Financing Receivable, Allowance for Credit Losses, Charge-offs	0	0
Financing Receivable, Allowance for Credit Losses, Recoveries	0	0
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	0	0
Provision for loan losses	25	(131)
Financing Receivable, Allowance for Credit Losses	594	569
Commercial Real Estate Loans, Total [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	2,289	2,218
Financing Receivable, Allowance for Credit Losses, Charge-offs	0	0
Financing Receivable, Allowance for Credit Losses, Recoveries	0	1
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	0	1
Provision for loan losses	880	70
Financing Receivable, Allowance for Credit Losses	3,169	2,289
Residential Real Estate Loans, Total [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	813	946
Financing Receivable, Allowance for Credit Losses, Charge-offs	0	(6)
Financing Receivable, Allowance for Credit Losses, Recoveries	63	109
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	63	103
Provision for loan losses	68	(236)
Financing Receivable, Allowance for Credit Losses	944	813
Consumer Installment and Revolving Loans [Member]
Financing Receivable, Allowance for Credit Losses [Roll Forward]
Financing Receivable, Allowance for Credit Losses	138	148
Financing Receivable, Allowance for Credit Losses, Charge-offs	(38)	(38)
Financing Receivable, Allowance for Credit Losses, Recoveries	20	27
Financing Receivable Allowance For Credit Losses Net Chargeoffs Recoveries	(18)	(11)
Provision for loan losses	(16)	1
Financing Receivable, Allowance for Credit Losses	$ 104	$ 138