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Business Combinations (Details) (USD $)
12 Months Ended
Dec. 30, 2014
Dec. 31, 2013
Jan. 01, 2013
Acquired Finite-Lived Intangible Assets [Line Items]      
Payments to Acquire Businesses, Gross $ 15,708,000us-gaap_PaymentsToAcquireBusinessesGross $ 0us-gaap_PaymentsToAcquireBusinessesGross $ 0us-gaap_PaymentsToAcquireBusinessesGross
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]      
Goodwill 6,400,000us-gaap_Goodwill 0us-gaap_Goodwill 0us-gaap_Goodwill
Franchise Rights [Member]      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]      
Intangibles   0us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_FranchiseRightsMember
 
Off-Market Favorable Lease [Member]      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]      
Intangibles   0us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OffMarketFavorableLeaseMember
 
Franchise Restaurants [Member]      
Acquired Finite-Lived Intangible Assets [Line Items]      
Number of restaurants acquired 19us-gaap_NumberOfBusinessesAcquired
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
   
Payments to Acquire Businesses, Gross 15,739,000us-gaap_PaymentsToAcquireBusinessesGross
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
   
Acquisition related costs 100,000us-gaap_BusinessCombinationAcquisitionRelatedCosts
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
   
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]      
Inventories 352,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedInventory
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
   
Prepaid expenses and other assets 33,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentAssetsPrepaidExpenseAndOtherAssets
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
   
Deferred tax asset 142,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredTaxAssetsNoncurrent
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
   
Property and equipment 7,564,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedPropertyPlantAndEquipment
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
   
Intangibles 1,567,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
   
Goodwill 6,400,000us-gaap_Goodwill
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
   
Deferred rent and other liabilities (319,000)ndls_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedDeferredRentAndOtherLiabilitiesNoncurrent
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
   
Total purchase price 15,739,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedNet
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
   
Below Market Leases, Amortization Period 11 years    
Franchise Restaurants [Member] | Franchise Rights [Member]      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]      
Intangibles 1,376,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_FranchiseRightsMember
   
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life 16 years    
Franchise Restaurants [Member] | Off-Market Favorable Lease [Member]      
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Assets [Abstract]      
Intangibles $ 190,000us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangibleAssetsOtherThanGoodwill
/ us-gaap_BusinessAcquisitionAxis
= ndls_FranchiseRestaurantsMember
/ us-gaap_FiniteLivedIntangibleAssetsByMajorClassAxis
= us-gaap_OffMarketFavorableLeaseMember
   
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life 9 years