Loans and Allowance (Troubled Debts Restructured) (Details) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019 USD ($) loan	Jun. 30, 2018 USD ($) loan	Jun. 30, 2019 USD ($) loan	Jun. 30, 2018 USD ($) loan
Commercial Segment [Member] | Commercial and Industrial [Member]
Financing Receivable, Modifications [Line Items]
No. of Loans | loan				1
Pre-Modification Outstanding Recorded Balance				$ 61
Post-Modification Outstanding Recorded Balance				$ 61
Consumer [Member] | First Mortgage [Member]
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	3	1	4	4
Pre-Modification Outstanding Recorded Balance	$ 41	$ 49	$ 51	$ 187
Post-Modification Outstanding Recorded Balance	$ 43	$ 47	$ 53	$ 187
Consumer [Member] | Second Mortgage [Member]
Financing Receivable, Modifications [Line Items]
No. of Loans | loan			1	4
Pre-Modification Outstanding Recorded Balance			$ 7	$ 82
Post-Modification Outstanding Recorded Balance			$ 7	$ 94
Consumer [Member] | Automobile Loan [Member]
Financing Receivable, Modifications [Line Items]
No. of Loans | loan		1	1	1
Pre-Modification Outstanding Recorded Balance		$ 10	$ 17	$ 10
Post-Modification Outstanding Recorded Balance		$ 10	$ 17	$ 10
Consumer [Member] | Boat/RVs [Member]
Financing Receivable, Modifications [Line Items]
No. of Loans | loan	1	1	2	1
Pre-Modification Outstanding Recorded Balance	$ 37	$ 19	$ 45	$ 19
Post-Modification Outstanding Recorded Balance	$ 37	$ 19	$ 45	$ 19