Loans and Allowance (Troubled Debts Restructured) (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019 USD ($) loan	Sep. 30, 2018 USD ($) loan	Sep. 30, 2019 USD ($) loan	Sep. 30, 2018 USD ($) loan
Commercial Segment [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1		1	1
Pre-Modification Outstanding Recorded Balance	$ 49		$ 49	$ 61
Post-Modification Outstanding Recorded Balance	$ 49		$ 49	$ 61
Consumer [Member] | First Mortgage [Member]
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	3	5	7
Pre-Modification Outstanding Recorded Balance	$ 80	$ 99	$ 131	$ 286
Post-Modification Outstanding Recorded Balance	$ 81	$ 101	$ 134	$ 288
Consumer [Member] | Second Mortgage [Member]
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1		2	4
Pre-Modification Outstanding Recorded Balance	$ 26		$ 33	$ 82
Post-Modification Outstanding Recorded Balance	$ 26		$ 33	$ 94
Consumer [Member] | Automobile Loan [Member]
Financing Receivable, Modifications [Line Items]
No. of Loans | loan			1	1
Pre-Modification Outstanding Recorded Balance			$ 17	$ 10
Post-Modification Outstanding Recorded Balance			$ 17	$ 10
Consumer [Member] | Boat/RVs [Member]
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	2	2	4	3
Pre-Modification Outstanding Recorded Balance	$ 271	$ 39	$ 316	$ 58
Post-Modification Outstanding Recorded Balance	$ 271	$ 36	$ 316	$ 55
Consumer [Member] | Other [Member]
Financing Receivable, Modifications [Line Items]
No. of Loans | loan		1		1
Pre-Modification Outstanding Recorded Balance		$ 4		$ 4
Post-Modification Outstanding Recorded Balance		$ 4		$ 4