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Commitments and Contingencies (Details) (USD $)
In Thousands, unless otherwise specified
Jan. 03, 2015
Future minimum lease payments under current operating leases  
2015 $ 858us-gaap_OperatingLeasesFutureMinimumPaymentsDueCurrent
2016 993us-gaap_OperatingLeasesFutureMinimumPaymentsDueInTwoYears
2017 164us-gaap_OperatingLeasesFutureMinimumPaymentsDueInThreeYears
Total future minimum lease payments $ 2,015us-gaap_OperatingLeasesFutureMinimumPaymentsDue