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Note 24 - Investments in Unconsolidated Affiliates and Variable Interest Entities (Detail) (USD $) In Thousands, unless otherwise specified | 0 Months Ended | 3 Months Ended | 6 Months Ended | 12 Months Ended | 48 Months Ended | 72 Months Ended |  | 12 Months Ended | 0 Months Ended | 72 Months Ended | 0 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Dec. 26, 2012 | Dec. 23, 2012 | Dec. 23, 2012 | Dec. 25, 2011 | Jul. 31, 2013 | Jul. 31, 2012 | Jul. 31, 2018 | Oct. 30, 2015 | Jun. 24, 2012 | Dec. 31, 2011 Five Largest Customers [Member] Parkdale America, LLC [Member] Sales Revenue, Goods, Net [Member] | Dec. 31, 2011 Five Largest Customers [Member] Parkdale America, LLC [Member] Accounts Receivable [Member] | Dec. 31, 2011 Largest Customer [Member] Parkdale America, LLC [Member] Sales Revenue, Goods, Net [Member] | Dec. 31, 2011 Largest Customer [Member] Parkdale America, LLC [Member] Accounts Receivable [Member] | Dec. 26, 2012 Parkdale America, LLC [Member] | Oct. 30, 2015 Customer Concentration Risk [Member] Parkdale America, LLC [Member] | Dec. 26, 2012 Tax Distribution [Member] | Dec. 26, 2012 Special Dividend [Member] | Jul. 31, 2014 Parkdale America, LLC [Member] | Dec. 23, 2012 Parkdale America, LLC [Member] | Aug. 28, 2009 Parkdale America, LLC [Member] | Jun. 30, 1997 Parkdale America, LLC [Member] | Dec. 23, 2012 UNF and UNF America [Member] | Jun. 24, 2012 UNF and UNF America [Member]
Equity Method Investment, Ownership Percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 34.00% |  |
Number of Manufacturing Facilities |  | 13 | 13 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Concentration Risk, Percentage |  |  |  |  |  |  |  |  |  | 80.00% | 72.00% | 37.00% | 37.00% |  | 95.00% |  |  |  |  |  |  |  |
Number of Months Following the Marketing Year that the Government Subsidy Was Earned by PAL |  |  |  |  | 18 months |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Federal Government Susidy Program Per Unit |  |  |  |  |  | four cents | three cents |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Years Covered by the Supply Agreement Between PAL and HBI |  |  |  |  |  |  |  | 6 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Times the Supply Agreement Between PAL and HBI Can Be Extended |  |  |  |  |  |  |  | 2 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of Years the Supply Agreement Between PAL and HBI Can Be Extended Per Extension |  |  |  |  |  |  |  | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Line of Credit Facility, Maximum Borrowing Capacity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 200,000 |  | $ 100,000 |  |  |
Cash Equivalents, at Carrying Value |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30,371 |  |  |  |
Accumulated Other Comprehensive Income (Loss), Cumulative Changes in Net Gain (Loss) from Cash Flow Hedges, Effect Net of Tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 42 |  |  |  |
Equity Method Investments |  | 96,212 | 96,212 |  |  |  |  |  | 95,763 |  |  |  |  |  |  |  |  |  | 91,832 |  |  | 4,380 |
Purchase Commitment, Remaining Minimum Amount Committed |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5,404 |
Accounts Payable, Related Parties |  | 428 | 428 |  |  |  |  |  | 496 |  |  |  |  |  |  |  |  |  |  |  |  | 3,721 | 4,184
Percentage of Current and Total Assets and Total Liabilities Accounted for by Equity Method Investments |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 3.00% |
Proceeds from Equity Method Investment, Dividends or Distributions | $ 7,807 | $ 500 | $ 2,724 | $ 2,005 |  |  |  |  |  |  |  |  |  | $ 7,807 |  | $ 2,707 | $ 5,100 |  |  |  |  |  |

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