XML 19 R46.htm IDEA: XBRL DOCUMENT
v3.2.0.727

Loans - Analysis of the Credit Risk Profile of Each Loan Class (Detail) - USD ($) $ in Thousands | Jun. 30, 2015 | Dec. 31, 2014 | Jun. 30, 2014
--- | --- | --- | ---
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | $ 391,721 | $ 378,410 | $ 367,490
Construction and Land Development [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 32,009 | 29,475 | 32,795
Secured by 1-4 Family Residential [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 173,265 | 163,727 | 151,043
Other Real Estate Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 155,396 | 151,802 |
Commercial and Industrial [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 19,319 | 21,166 | 24,797
Consumer and Other Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 11,732 | 12,240 | $ 12,372
Pass [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 352,850 | 331,359 |
Pass [Member] | Construction and Land Development [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 22,807 | 20,476 |
Pass [Member] | Secured by 1-4 Family Residential [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 164,075 | 152,004 |
Pass [Member] | Other Real Estate Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 135,661 | 126,211 |
Pass [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 18,575 | 20,428 |
Pass [Member] | Consumer and Other Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 11,732 | 12,240 |
Special Mention [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 21,278 | 23,259 |
Special Mention [Member] | Construction and Land Development [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 4,376 | 2,962 |
Special Mention [Member] | Secured by 1-4 Family Residential [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 4,840 | 5,058 |
Special Mention [Member] | Other Real Estate Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 11,625 | 14,776 |
Special Mention [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 437 | 463 |
Substandard [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 17,593 | 23,792 |
Substandard [Member] | Construction and Land Development [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 4,826 | 6,037 |
Substandard [Member] | Secured by 1-4 Family Residential [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 4,350 | 6,665 |
Substandard [Member] | Other Real Estate Loans [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | 8,110 | 10,815 |
Substandard [Member] | Commercial and Industrial [Member] |  |  |
Financing Receivable, Recorded Investment [Line Items] |  |  |
Total | $ 307 | $ 275 |

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 before allowance of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes deferred interest and fees, undisbursed portion of loan balance, unamortized costs and premiums and discounts from face amounts. Excludes loans and leases covered under loss sharing agreements. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 310 -SubTopic 10 -Section 45 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=28367877&loc=d3e4428-111522 + Details
Name: | us-gaap_LoansAndLeasesReceivableGrossCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

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

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

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

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

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_PassMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SpecialMentionMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_InternalCreditAssessmentAxis=us-gaap_SubstandardMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |