XML 74 R64.htm IDEA: XBRL DOCUMENT
v3.5.0.2

Balance and Interest Income Related to Impaired Loan Pools (Detail) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2016 | Sep. 30, 2015 | Sep. 30, 2016 | Sep. 30, 2015
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Interest income recognized | $ 169 | $ 128 | $ 555 | $ 523
PCI loans |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Interest income recognized | 12 | 96 | 130 | 273
TDRs | PCI loans |  |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |  |
Interest income recognized | $ 143 | $ 148 | $ 296 | $ 456

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of interest income recognized that the financing receivables (with related allowance for credit losses and without a related allowance for credit losses) were impaired. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 50 -Paragraph 15 -Subparagraph (c)(2) -URI http://asc.fasb.org/extlink&oid=66008989&loc=d3e5212-111524 + Details
Name: | us-gaap_ImpairedFinancingReceivableInterestIncomeAccrualMethod
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | us-gaap_FinancingReceivableRecordedInvestmentByClassOfFinancingReceivableAxis=fcbc_PurchasedCreditImpairedLoansMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_LoanRestructuringModificationAxis=fcbc_FinancingReceivableTroubledDebtRestructuringsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |