Long-Term Debt Long-Term Debt Details (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term debt	$ 4,053	$ 16,495
Subordinated Borrowing, Interest Rate	4.64%	5.09%
Subordinated Borrowing, Due Date	Dec. 22, 2036
Repayment Price Junior Subordinated Deferrable Interest Debentures	100.00%
Repayment Price Capital Securities	100.00%
Number of Trust Preferred Securities	4,000
Trust Preferred Securities Liquidation Value	$ 1,000
Distributions On Debentures Interest Rate Over Three Month Libor Rate	1.83%
City Holding Capital Trust III [Member]
Debt Instrument [Line Items]
Long-term debt	$ 0	$ 16,495
Town Square Statutory Trust I [Member]
Debt Instrument [Line Items]
Long-term debt	4,124	0
Debt Instrument, Unamortized Discount	$ (71)	$ 0