Loans and Allowance for Loan Losses (ALL by Loan Classification) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 10,243	$ 8,275	$ 5,860
All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	10,087	8,275
All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	9,612	7,741
All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	475	534
Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	156	0
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	4,508	3,639	2,465
Commercial Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	4,491	3,639
Commercial Real Estate [Member] | All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	4,491	3,639
Commercial Real Estate [Member] | All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	0
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	17	0
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	2,576	1,789	1,596
Consumer Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	2,502	1,789
Consumer Real Estate [Member] | All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	2,159	1,763
Consumer Real Estate [Member] | All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	343	26
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	74	0
Construction and Land Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,127	795	521
Construction and Land Development [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,127	795
Construction and Land Development [Member] | All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,127	795
Construction and Land Development [Member] | All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	0
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	0
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,957	1,746	1,062
Commercial and Industrial [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,898	1,746
Commercial and Industrial [Member] | All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	1,766	1,304
Commercial and Industrial [Member] | All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	132	442
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	59	0
Consumer and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	75	306	$ 216
Consumer and Other [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	69	306
Consumer and Other [Member] | All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	69	240
Consumer and Other [Member] | All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	0	66
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Allowance for loan losses	$ 6	$ 0