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Supplemental Financial Information (Accrued Expense and Other Liabilities) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 30, 2014
Dec. 31, 2013
Supplemental Financial Information [Abstract]    
Gift card liability $ 2,701us-gaap_AccruedLiabilitiesForUnredeeemedGiftCards $ 2,289us-gaap_AccruedLiabilitiesForUnredeeemedGiftCards
Occupancy related 1,477ndls_AccruedOccupancyLiabilityCurrent 1,418ndls_AccruedOccupancyLiabilityCurrent
Utilities 1,523us-gaap_AccruedUtilitiesCurrent 1,321us-gaap_AccruedUtilitiesCurrent
Other accrued expenses 2,859us-gaap_OtherAccruedLiabilitiesCurrent 2,719us-gaap_OtherAccruedLiabilitiesCurrent
Accrued expenses and other current liabilities $ 8,560us-gaap_AccruedLiabilitiesCurrent $ 7,747us-gaap_AccruedLiabilitiesCurrent