Background and Basis of Presentation (Details)	9 Months Ended
Sep. 30, 2017 store
Entity Location [Line Items]
Number of Reportable Segments	1
City National
Entity Location [Line Items]
Number of Stores	86
WEST VIRGINIA \| City National
Entity Location [Line Items]
Number of Stores	57
VIRGINIA \| City National
Entity Location [Line Items]
Number of Stores	14
KENTUCKY \| City National
Entity Location [Line Items]
Number of Stores	12
OHIO \| City National
Entity Location [Line Items]
Number of Stores	3

Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.

No definition available.

Name:	us-gaap_NumberOfReportableSegments
Namespace Prefix:	us-gaap_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration