XML 29 R118.htm IDEA: XBRL DOCUMENT
v2.4.0.8

Components of Other Operating Income (Parenthetical) (Detail) | 12 Months Ended
--- | ---
Dec. 31, 2013
Components of Other Operating Income [Line Items] |
Percentage of other operating income | 1.00%

X
- Details
Name: | fcbc_ComponentsOfOtherOperatingIncomeLineItems
Namespace Prefix: | fcbc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Percentage Of Operating Income + References No definition available. + Details
Name: | fcbc_PercentageOfOperatingIncome
Namespace Prefix: | fcbc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration