Loans and Allowance for Loan Losses Performing and Impaired Loans) (Details) - USD ($) $ in Thousands	Dec. 31, 2019	Dec. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 1,903,248	$ 1,777,239
All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,876,261	1,743,081
All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,873,751	1,739,522
All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	2,510	3,559
Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	26,987	34,158
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	905,306	860,027
Commercial Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	890,051	842,345
Commercial Real Estate [Member] | All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	889,795	841,709
Commercial Real Estate [Member] | All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	256	636
Commercial Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	15,255	17,682
Consumer Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	423,338	407,254
Consumer Real Estate [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	416,797	398,542
Consumer Real Estate [Member] | All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	415,250	397,306
Consumer Real Estate [Member] | All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	1,547	1,236
Consumer Real Estate [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	6,541	8,712
Construction and Land Development [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	227,626	187,895
Construction and Land Development [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	223,168	183,293
Construction and Land Development [Member] | All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	222,621	182,746
Construction and Land Development [Member] | All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	547	547
Construction and Land Development [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	4,458	4,602
Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	337,075	308,254
Commercial and Industrial [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	336,668	305,697
Commercial and Industrial [Member] | All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	336,508	304,673
Commercial and Industrial [Member] | All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	160	1,024
Commercial and Industrial [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	407	2,557
Consumer and Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	9,903	13,809
Consumer and Other [Member] | All Other Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	9,577	13,204
Consumer and Other [Member] | All Other Loans [Member] | Performing [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	9,577	13,088
Consumer and Other [Member] | All Other Loans [Member] | Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	0	116
Consumer and Other [Member] | Purchased Credit Impaired Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Total loans	$ 326	$ 605