Loans and Allowance (Newly Restructured Loans by Type) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Commercial Real Estate [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Only
Term	30		$ 406
Total modification	30		406
Commercial Segment [Member] | Construction Loans [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term			83
Total modification			83
Commercial Segment [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Only
Term	61	$ 72	7
Total modification	61	72	7
Consumer [Member] | First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Only
Term	38	27	47
Combination	350	297	864
Total modification	388	324	911
Consumer [Member] | Second Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Only
Term	35	3
Combination	59	13	39
Total modification	94	$ 16	39
Consumer [Member] | Automobile Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Only
Term	30
Combination			4
Total modification	30		4
Consumer [Member] | Boat/RVs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Only
Term	321		48
Combination	27		8
Total modification	348		56
Consumer [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Interest Only
Term	4
Total modification	$ 4		$ 7