Loans and Leases - Individually Impaired Loans (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2019		Dec. 31, 2018		Dec. 31, 2017
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	$ 9,694		$ 13,851
With an Allowance Recorded Recorded Investment	[2]	9,464		13,138
With an Allowance Recorded Related Allowance		827		2,008
With an Allowance Recorded Average Recorded Investment		9,951		13,821
With an Allowance Recorded Interest Income Recognized	[3]	503		689
With no Related Allowance Recorded Unpaid Principal Balance	[1]	6,121		3,199
With no Related Allowance Recorded Recorded Investment	[2]	4,688		2,934
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		6,684		3,781
With no Related Allowance Recorded Interest Income Recognized	[3]	24		4
Individually impaired loans Unpaid Principal Balance	[1]	15,815		17,050
Total impaired loans	[2]	14,152		16,072
Individually impaired loans Related Allowance		827		2,008
Individually impaired loans Average Recorded Investment		16,635		17,602
Individually impaired loans Interest Income Recognized		527	[3]	693	[3]	$ 784
Real Estate Sector [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	8,310		11,308
With an Allowance Recorded Recorded Investment	[2]	8,138		10,834
With an Allowance Recorded Related Allowance		493		938
With an Allowance Recorded Average Recorded Investment		8,336		10,941
With an Allowance Recorded Interest Income Recognized	[3]	439		588
With no Related Allowance Recorded Unpaid Principal Balance	[1]	6,010		2,779
With no Related Allowance Recorded Recorded Investment	[2]	4,607		2,667
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		6,382		2,670
With no Related Allowance Recorded Interest Income Recognized	[3]	9		3
Real Estate Sector [Member] | 1-4 Family Residential Construction [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	0		0
With an Allowance Recorded Recorded Investment	[2]	0		0
With an Allowance Recorded Related Allowance		0		0
With an Allowance Recorded Average Recorded Investment		0		0
With an Allowance Recorded Interest Income Recognized	[3]	0		0
With no Related Allowance Recorded Unpaid Principal Balance	[1]	0		0
With no Related Allowance Recorded Recorded Investment	[2]	0		0
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		0		0
With no Related Allowance Recorded Interest Income Recognized	[3]	0		0
Real Estate Sector [Member] | Other construction/land [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	656		593
With an Allowance Recorded Recorded Investment	[2]	537		438
With an Allowance Recorded Related Allowance		157		44
With an Allowance Recorded Average Recorded Investment		563		648
With an Allowance Recorded Interest Income Recognized	[3]	32		40
With no Related Allowance Recorded Unpaid Principal Balance	[1]	52		54
With no Related Allowance Recorded Recorded Investment	[2]	17		50
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		577		58
With no Related Allowance Recorded Interest Income Recognized	[3]	4		0
Real Estate Sector [Member] | 1-4 Family - Closed-End [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	2,298		3,325
With an Allowance Recorded Recorded Investment	[2]	2,298		3,325
With an Allowance Recorded Related Allowance		58		75
With an Allowance Recorded Average Recorded Investment		2,365		3,182
With an Allowance Recorded Interest Income Recognized	[3]	146		175
With no Related Allowance Recorded Unpaid Principal Balance	[1]	755		357
With no Related Allowance Recorded Recorded Investment	[2]	722		307
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		726		375
With no Related Allowance Recorded Interest Income Recognized	[3]	0		3
Real Estate Sector [Member] | Equity Lines [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	4,173		4,603
With an Allowance Recorded Recorded Investment	[2]	4,120		4,550
With an Allowance Recorded Related Allowance		252		656
With an Allowance Recorded Average Recorded Investment		4,185		4,368
With an Allowance Recorded Interest Income Recognized	[3]	200		206
With no Related Allowance Recorded Unpaid Principal Balance	[1]	326		224
With no Related Allowance Recorded Recorded Investment	[2]	301		166
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		310		221
With no Related Allowance Recorded Interest Income Recognized	[3]	5		0
Real Estate Sector [Member] | Multi-Family Residential [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	353		373
With an Allowance Recorded Recorded Investment	[2]	353		373
With an Allowance Recorded Related Allowance		17		25
With an Allowance Recorded Average Recorded Investment		361		359
With an Allowance Recorded Interest Income Recognized	[3]	23		20
With no Related Allowance Recorded Unpaid Principal Balance	[1]	0		0
With no Related Allowance Recorded Recorded Investment	[2]	0		0
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		0		0
With no Related Allowance Recorded Interest Income Recognized	[3]	0		0
Real Estate Sector [Member] | Commercial Real Estate Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	593		842
With an Allowance Recorded Recorded Investment	[2]	593		723
With an Allowance Recorded Related Allowance		6		135
With an Allowance Recorded Average Recorded Investment		606		740
With an Allowance Recorded Interest Income Recognized	[3]	38		40
With no Related Allowance Recorded Unpaid Principal Balance	[1]	1,560		502
With no Related Allowance Recorded Recorded Investment	[2]	1,440		502
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		1,477		478
With no Related Allowance Recorded Interest Income Recognized	[3]	0		0
Real Estate Sector [Member] | Commercial Real Estate Non Owner Occupied [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	0		1,572
With an Allowance Recorded Recorded Investment	[2]	0		1,425
With an Allowance Recorded Related Allowance		0		3
With an Allowance Recorded Average Recorded Investment		0		1,644
With an Allowance Recorded Interest Income Recognized	[3]	0		107
With no Related Allowance Recorded Unpaid Principal Balance	[1]	3,295		0
With no Related Allowance Recorded Recorded Investment	[2]	2,105		0
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		3,267		0
With no Related Allowance Recorded Interest Income Recognized	[3]	0		0
Real Estate Sector [Member] | Farmland [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	237		0
With an Allowance Recorded Recorded Investment	[2]	237		0
With an Allowance Recorded Related Allowance		3		0
With an Allowance Recorded Average Recorded Investment		256		0
With an Allowance Recorded Interest Income Recognized	[3]	0		0
With no Related Allowance Recorded Unpaid Principal Balance	[1]	22		1,642
With no Related Allowance Recorded Recorded Investment	[2]	22		1,642
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		25		1,538
With no Related Allowance Recorded Interest Income Recognized	[3]	0		0
Agricultural Sector [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	5		6
With an Allowance Recorded Recorded Investment	[2]	5		6
With an Allowance Recorded Related Allowance		1		1
With an Allowance Recorded Average Recorded Investment		6		6
With an Allowance Recorded Interest Income Recognized	[3]	0		0
With no Related Allowance Recorded Unpaid Principal Balance	[1]	0		0
With no Related Allowance Recorded Recorded Investment	[2]	0		0
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		0		0
With no Related Allowance Recorded Interest Income Recognized	[3]	0		0
Commercial and Industrial Sector [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	915		1,724
With an Allowance Recorded Recorded Investment	[2]	896		1,534
With an Allowance Recorded Related Allowance		219		918
With an Allowance Recorded Average Recorded Investment		1,140		1,965
With an Allowance Recorded Interest Income Recognized	[3]	29		40
With no Related Allowance Recorded Unpaid Principal Balance	[1]	102		238
With no Related Allowance Recorded Recorded Investment	[2]	81		211
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		162		838
With no Related Allowance Recorded Interest Income Recognized	[3]	0		0
Consumer Loans Sector [Member]
Financing Receivable, Impaired [Line Items]
With an Allowance Recorded Unpaid Principal Balance	[1]	464		813
With an Allowance Recorded Recorded Investment	[2]	425		764
With an Allowance Recorded Related Allowance		114		151
With an Allowance Recorded Average Recorded Investment		469		909
With an Allowance Recorded Interest Income Recognized	[3]	35		61
With no Related Allowance Recorded Unpaid Principal Balance	[1]	9		182
With no Related Allowance Recorded Recorded Investment	[2]	0		56
With no Related Allowance Recorded Related Allowance		0		0
With no Related Allowance Recorded Average Recorded Investment		140		273
With no Related Allowance Recorded Interest Income Recognized	[3]	$ 15		$ 1

[1] Contractual principal balance due from customer.

[2] Principal balance on Company’s books, less any direct charge offs.

[3] Interest income is recognized on performing balances on a regular accrual basis.