Non-performing Loans - Schedule of TDRs by Loan Portfolio (Details) - USD ($) $ in Thousands	Sep. 30, 2020	Dec. 31, 2019
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	$ 2,704	$ 2,006
Performing TDRs	1,825	3,354
Total	4,529	5,360
Commercial
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	1,492	1,081
Performing TDRs	169	1,484
Total	1,661	2,565
Commercial | Owner occupied real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	629	629
Performing TDRs	169	139
Total	798	768
Commercial | Non–owner occupied real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	340	374
Performing TDRs	0	0
Total	340	374
Commercial | Residential spec homes
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	0	0
Performing TDRs	0	0
Total	0	0
Commercial | Development & spec land
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	0	0
Performing TDRs	0	0
Total	0	0
Commercial | Commercial and industrial
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	523	78
Performing TDRs	0	1,345
Total	523	1,423
Real estate
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	988	708
Performing TDRs	1,410	1,561
Total	2,398	2,269
Real estate | Residential mortgage
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	988	708
Performing TDRs	1,410	1,561
Total	2,398	2,269
Real estate | Residential construction
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	0	0
Performing TDRs	0	0
Total	0	0
Real estate | Mortgage warehouse
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	0	0
Performing TDRs	0	0
Total	0	0
Consumer
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	224	217
Performing TDRs	246	309
Total	470	526
Consumer | Direct installment
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	0	0
Performing TDRs	0	0
Total	0	0
Consumer | Indirect installment
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	0	0
Performing TDRs	0	0
Total	0	0
Consumer | Home equity
Financing Receivable, Troubled Debt Restructuring [Line Items]
TDR loans	224	217
Performing TDRs	246	309
Total	$ 470	$ 526