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Supplemental Financial Information (Accrued Payroll and Benefits) (Details) (USD $)
In Thousands, unless otherwise specified
Dec. 30, 2014
Dec. 31, 2013
Supplemental Financial Information [Abstract]    
Accrued payroll and related liabilities $ 3,022us-gaap_AccruedSalariesCurrent $ 2,611us-gaap_AccruedSalariesCurrent
Accrued bonus 803us-gaap_AccruedBonusesCurrent 3,383us-gaap_AccruedBonusesCurrent
Insurance liabilities 879ndls_EmployeeRelatedLiabilitiesInsuranceCurrent 1,127ndls_EmployeeRelatedLiabilitiesInsuranceCurrent
Accrued payroll and benefits $ 4,704us-gaap_EmployeeRelatedLiabilitiesCurrent $ 7,121us-gaap_EmployeeRelatedLiabilitiesCurrent