Loans and Allowance (Newly Restructured Loans by Type) (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Commercial Segment [Member] | Commercial and Industrial [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term	$ 49		$ 49	$ 61
Total modification	49		49	61
Consumer [Member] | First Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term		$ 38		38
Combination	81	63	134	250
Total modification	81	101	134	288
Consumer [Member] | Second Mortgage [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term			7	35
Combination	26		26	59
Total modification	26		33	94
Consumer [Member] | Automobile Loan [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term				10
Combination			17
Total modification			17	10
Consumer [Member] | Boat/RVs [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term	8	15	16	34
Combination	263	21	300	21
Total modification	$ 271	36	$ 316	55
Consumer [Member] | Other [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Term		4		4
Total modification		$ 4		$ 4