Advances from federal reserve bank.

No definition available.

Name:	pfbx_AdvancesFromFederalReserveBank
Namespace Prefix:	pfbx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Federal home loan bank advance branch of fhlb bank due date.

+ References

No definition available.

+ Details

Name:	pfbx_FederalHomeLoanBankAdvanceBranchOfFhlbBankDueDate
Namespace Prefix:	pfbx_
Data Type:	xbrli:gYearMonthItemType
Balance Type:	na
Period Type:	duration

- Definition

Federal home loan bank advances by interest rate type fixed rate advance one.

+ References

No definition available.

+ Details

Name:	pfbx_FederalHomeLoanBankAdvancesByInterestRateTypeFixedRateAdvanceOne
Namespace Prefix:	pfbx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Federal Home Loan Bank Advances by Interest Rate Type Floating Rate

+ References

No definition available.

+ Details

Name:	pfbx_FederalHomeLoanBankAdvancesByInterestRateTypeFloatingRate
Namespace Prefix:	pfbx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Federal Home Loan Bank Advances by Interest Rate Type Margin on Floating Rate

+ References

No definition available.

+ Details

Name:	pfbx_FederalHomeLoanBankAdvancesByInterestRateTypeMarginOnFloatingRate
Namespace Prefix:	pfbx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration

- Definition

Federal reserve bank advances basis spread on variable rate.

+ References

No definition available.

+ Details

Name:	pfbx_FederalReserveBankAdvancesBasisSpreadOnVariableRate
Namespace Prefix:	pfbx_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Federal reserve bank advances maturity period.

+ References

No definition available.

+ Details

Name:	pfbx_FederalReserveBankAdvancesMaturityPeriod
Namespace Prefix:	pfbx_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Maximum borrowing from federal reserve bank.

+ References

No definition available.

+ Details

Name:	pfbx_MaximumBorrowingFromFederalReserveBank
Namespace Prefix:	pfbx_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of borrowings as of the balance sheet date from the Federal Home Loan Bank, which are primarily used to cover shortages in the required reserve balance and liquidity shortages.

+ References

+ Details

Name:	us-gaap_AdvancesFromFederalHomeLoanBanks
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Discloses the earliest year of maturity for the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

+ References

+ Details

Name:	us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankDueDateEarliest
Namespace Prefix:	us-gaap_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	instant

- Definition

Enter the last year of maturity for the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

+ References

+ Details

Name:	us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankDueDateLast
Namespace Prefix:	us-gaap_
Data Type:	xbrli:gYearItemType
Balance Type:	na
Period Type:	instant

- Definition

Discloses the single interest rate [if] applicable to the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

+ References

+ Details

Name:	us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRate
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Discloses the lowest interest rate applicable to any of the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13(3)(a))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

+ Details

Name:	us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRateRangeFrom
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Definition

Discloses the highest interest rate applicable to any of the advances from the Federal Home Loan Bank, by branch, as of the Balance Sheet date.

+ References

+ Details

Name:	us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankInterestRateRangeTo
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	instant

- Details

Name:	us-gaap_FederalHomeLoanBankAdvancesBranchOfFHLBBankLineItems
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of maximum advances or credit lines available from the Federal Home Loan Bank (FHLB).

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 470

-Section 45

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=6479118&loc=d3e64650-112822

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 02

-Paragraph 22

-Subparagraph b

-Article 5

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 942

-SubTopic 210

-Section S99

-Paragraph 1

-Subparagraph (SX 210.9-03.13(3)(a))

-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Reference 4: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 210

-SubTopic 10

-Section S99

-Paragraph 1

-Subparagraph (SX 210.5-02.22 (b))

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

Reference 5: http://www.xbrl.org/2003/role/presentationRef

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 03

-Paragraph 13

-Subparagraph 3(a)

-Article 9

+ Details

Name:	us-gaap_FederalHomeLoanBankAdvancesGeneralDebtObligationsDisclosuresMaximumAmountAvailable
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Amount of advances from Federal Home Loan Bank (FHLBank) maturing in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date.

+ References

+ Details

Name:	us-gaap_FederalHomeLoanBankAdvancesMaturitiesSummaryDueWithinOneYearOfBalanceSheetDate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Details

Name:	us-gaap_LongtermDebtTypeAxis=pfbx_FederalHomeLoanBankAdvancesWithPointFiveNineThreeInterestRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_LongtermDebtTypeAxis=pfbx_FederalHomeLoanBankAdvancesWithPointZeroEightInterestRateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

Borrowings - Additional Information (Detail) (USD $)	12 Months Ended
Borrowings - Additional Information (Detail) (USD $)	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Borrowing limit from federal reserve bank discount window primary credit program	$ 38,845,590
Borrowing interest base point	0.25%
Maturity Period Borrowing Interest Rate	1 day
Outstanding Balance	0pfbx_AdvancesFromFederalReserveBank
Amount Outstanding in advance	38,708,000	77,684,000	7,912,000
Line of Credit with FHLB	97,649,565
Fixed rate of interest remaining advances, from	2.604%
Fixed rate of interest remaining advances, to	7.00%
Maturity dates of fixed rate of interest remaining advances	2015
Maturity dates of fixed rate of interest remaining advances	2042
FHLB Advances with .593 % Interest [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Advance in Amount, One	5,000,000
Margin on the floating rate of interest	0.432%
Floating rate of interest on advance	0.593%
FHLB Advances with .08 % Interest [Member]
Federal Home Loan Bank, Advances, Branch of FHLB Bank [Line Items]
Additional FHLB advances maturing in next fiscal year	$ 30,000,000
FHLB advances, interest rate	0.08%
Maturity year of advances	2015-01