XML 32 R62.htm IDEA: XBRL DOCUMENT v2.4.1.9

Preferred Stock - Additional Information (Detail) (USD $)	3 Months Ended
	Mar. 31, 2015	Dec. 31, 2014
Class of Stock [Line Items]
Preferred stock, shares issued	14,595us-gaap_PreferredStockSharesIssued	14,595us-gaap_PreferredStockSharesIssued
Preferred stock, liquidation preference	$ 1,000us-gaap_PreferredStockLiquidationPreference	$ 1,000us-gaap_PreferredStockLiquidationPreference
Discount on preferred stock amortized period	5 years
Fixed Rate Cumulative Perpetual Preferred Stock, Series A [Member]
Class of Stock [Line Items]
Preferred stock, shares issued	13,900us-gaap_PreferredStockSharesIssued / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember
Par value	$ 1.25us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember
Preferred stock, liquidation preference	$ 1,000us-gaap_PreferredStockLiquidationPreference / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesAPreferredStockMember
Fixed Rate Cumulative Perpetual Preferred Stock, Series B [Member]
Class of Stock [Line Items]
Par value	$ 1.25us-gaap_PreferredStockParOrStatedValuePerShare / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember
Preferred stock, liquidation preference	$ 1,000us-gaap_PreferredStockLiquidationPreference / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember
Number of shares	695us-gaap_ClassOfWarrantOrRightNumberOfSecuritiesCalledByWarrantsOrRights / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember
Cumulative dividends of warrant preferred stock	9.00%fxnc_WarrantPreferredStockCumulativeDividendRatePercentage / us-gaap_StatementClassOfStockAxis = us-gaap_SeriesBPreferredStockMember
Purchase Agreement [Member]
Class of Stock [Line Items]
Cumulative dividends percentage until May 14, 2014	5.00%fxnc_PreferredStockDividendRatePercentageForSpecifiedPeriod / us-gaap_ShareRepurchaseProgramAxis = fxnc_PurchaseAgreementMember
Cumulative dividend thereafter	9.00%fxnc_PreferredStockDividendRatePercentageAfterSpecifiedPeriod / us-gaap_ShareRepurchaseProgramAxis = fxnc_PurchaseAgreementMember

X

- Definition

Discount on preferred stock amortized period.

+ References

No definition available.

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X

- Definition

Preferred stock dividend rate percentage after specified period.

+ References

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X

- Definition

Preferred stock dividend rate percentage for specified period.

+ References

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X

- Definition

Warrant preferred stock cumulative dividend rate percentage.

+ References

No definition available.

+ Details

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Namespace Prefix:	fxnc_
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- Details

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X

- Definition

Number of securities into which the class of warrant or right may be converted. For example, but not limited to, 500,000 warrants may be converted into 1,000,000 shares.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(i)(2))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 08

-Paragraph i

-Subparagraph 2

-Article 4

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X

- Definition

The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

-SubTopic 10

-Section 50

-Paragraph 3

-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21475-112644



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29

-Article 5



Reference 3: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 505

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-URI http://asc.fasb.org/extlink&oid=6928386&loc=d3e21484-112644



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-Number 210

-Section 08

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-Article 4



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-Publisher FASB

-Name Accounting Standards Codification

-Topic 235

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-Section S99

-Paragraph 1

-Subparagraph (SX 210.4-08.(d)(1))

-URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690

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X

- Definition

Face amount or stated value per share of preferred stock nonredeemable or redeemable solely at the option of the issuer.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



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-Name Regulation S-X (SX)

-Number 210

-Section 02

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X

- Definition

Total number of nonredeemable preferred shares (or preferred stock redeemable solely at the option of the issuer) issued to shareholders (includes related preferred shares that were issued, repurchased, and remain in the treasury). May be all or portion of the number of preferred shares authorized. Excludes preferred shares that are classified as debt.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.28)

-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682



Reference 2: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 29

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- Details

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- Details

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