Quarterly report pursuant to Section 13 or 15(d)

Purchase Contracts (Details)

v2.4.1.9
Purchase Contracts (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 27, 2014
Long-term Purchase Commitment [Line Items]  
Outstanding minimum payments $ 26,607us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
Yarn [Member]  
Long-term Purchase Commitment [Line Items]  
Outstanding minimum payments 3,548us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
/ us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis
= dla_YarnMember
Natural Gas [Member]  
Long-term Purchase Commitment [Line Items]  
Outstanding minimum payments 262us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
/ us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis
= us-gaap_NaturalGasReservesMember
Finished Fabric [Member]  
Long-term Purchase Commitment [Line Items]  
Outstanding minimum payments 1,353us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
/ us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis
= dla_FinishedFabricMember
Finished Products [Member]  
Long-term Purchase Commitment [Line Items]  
Outstanding minimum payments $ 21,444us-gaap_PurchaseCommitmentRemainingMinimumAmountCommitted
/ us-gaap_LongTermPurchaseCommitmentByCategoryOfItemPurchasedAxis
= dla_FinishedProductsMember