Amendments to line of credit agreements fees percent.

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- Definition

Debt Instrument, Holdback Agreement, Additional Funding Amount

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No definition available.

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- Definition

Debt Instrument, Holdback Agreement, Reduced Holdback Amount

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No definition available.

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- Definition

Maximum liability under amended bond agreement.

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No definition available.

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

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No definition available.

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- Definition

Amount of long-term debt before deduction of unamortized discount or premium. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt, with initial maturities beyond one year or the normal operating cycle, if longer.

+ 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 210.5-02.22)

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-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

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-Article 5

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-Name Regulation S-X (SX)

-Number 210

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- Definition

Face (par) amount of debt instrument at time of issuance.

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-Publisher FASB

-Name Accounting Standards Codification

-Topic 835

-SubTopic 30

-Section 55

-Paragraph 8

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

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- 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.

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No definition available.

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- Definition

Average amount borrowed under the credit facility during the period.

+ References

No definition available.

+ Details

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- Definition

Amount of current borrowing capacity under the credit facility considering any current restrictions on the amount that could be borrowed (for example, borrowings may be limited by the amount of current assets), but without considering any amounts currently outstanding under the facility.

+ References

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- Definition

Maximum amount borrowed under the credit facility at any time during the period.

+ References

No definition available.

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- Definition

Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility.

+ References

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- Definition

Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

+ References

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- Definition

Carrying amount of long-term debt, net of unamortized discount or premium, including current and noncurrent amounts. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ 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 210.9-03.16)

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-Paragraph 20, 22

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Amount of long-term debt, after unamortized discount or premium, scheduled to be repaid within one year or the normal operating cycle, if longer. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References

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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a rate subject to change from time to time.

+ References

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- Definition

The cash inflow during the period from additional borrowings in aggregate debt. Includes proceeds from short-term and long-term debt.

+ References

No definition available.

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- Definition

Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer.

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-Number 210

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Weighted average interest rate of short-term debt outstanding.

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Short-term Borrowing and Long-term Debt - Additional Information (Detail) - USD ($)				6 Months Ended
	May. 19, 2015	May. 30, 2014	Jun. 28, 2013	Aug. 01, 2015	Aug. 02, 2014	Jan. 31, 2015	Nov. 01, 2014	Aug. 18, 2014	Jul. 18, 2013	Mar. 21, 2011
Debt Instrument [Line Items]
Credit facility, maximum principal amount										$ 150,000,000.0
Credit facility, maximum borrowing capacity increased										$ 200,000,000.0
Maximum amount available under credit facility				$ 115,500,000
Maximum outstanding borrowing				40,000,000
Average outstanding borrowing				48,500,000
Loan classified as short term				21,164,000		$ 10,483,000
Proceeds from the issuance of long-term debt				10,011,000	$ 5,000,000
Bonds [Member]
Debt Instrument [Line Items]
Loan agreement amount outstanding				$ 3,700,000		$ 3,700,000
Interest rate on bonds				1.25%		1.25%
Affiliated Entity [Member]
Debt Instrument [Line Items]
Subsidiaries maximum bond liability				$ 5,880,000
PGP Florence, LLC [Member] \| Protective Life Insurance Company [Member]
Debt Instrument [Line Items]
Loan agreement amount outstanding									$ 12,600,000
Fixed interest rate of loan									4.00%
Outstanding loan amount				11,700,000
Loan classified as short term				$ 500,000
PGP Gardendale, LLC [Member] \| Protective Life Insurance Company [Member]
Debt Instrument [Line Items]
Loan agreement amount outstanding		$ 17,300,000
Fixed interest rate of loan				5.00%
Outstanding loan amount				$ 14,900,000
Loan classified as short term				500,000
Proceeds from the issuance of long-term debt	$ 10,000,000.0	5,000,000
Reduced holdback amount							$ 10,000,000
Principal amount funded to date	$ 15,000,000.0
PGP Fayetteville, LLC [Member] \| Protective Life Insurance Company [Member]
Debt Instrument [Line Items]
Loan agreement amount outstanding								$ 3,200,000
Fixed interest rate of loan								4.625%
Outstanding loan amount				3,100,000
Loan classified as short term				$ 200,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Credit facility restated commitment fee amount			0.25%
Weighted average of short term debt				1.65%
Fair value measurements outstanding under revolving line of credit				$ 20,100,000		$ 9,800,000
Revolving Credit Facility [Member] \| Minimum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Line of credit facilities interest at variable rate			1.50%
Revolving Credit Facility [Member] \| Minimum [Member] \| Prime Rate [Member]
Debt Instrument [Line Items]
Line of credit facilities interest at variable rate			0.50%
Revolving Credit Facility [Member] \| Maximum [Member] \| LIBOR [Member]
Debt Instrument [Line Items]
Line of credit facilities interest at variable rate			2.00%
Revolving Credit Facility [Member] \| Maximum [Member] \| Prime Rate [Member]
Debt Instrument [Line Items]
Line of credit facilities interest at variable rate			1.00%
Letter of Credit [Member]
Debt Instrument [Line Items]
Credit facility, maximum principal amount				35,000,000.0
Loan agreement amount outstanding				5,600,000		$ 5,600,000
Letter of Credit [Member] \| Bonds [Member]
Debt Instrument [Line Items]
Loan agreement amount outstanding				3,700,000
Swing Line Loans [Member]
Debt Instrument [Line Items]
Credit facility, maximum principal amount				$ 15,000,000.0
Loan Agreement with Protective Life Insurance [Member] \| PGP Gardendale, LLC [Member] \| Protective Life Insurance Company [Member]
Debt Instrument [Line Items]
Holdback agreement additional funding amount		$ 12,300,000