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8. Intangible Assets (Details) - Finite-lived Intangible Assets Amortization Expense
$ in Thousands
Oct. 29, 2017
USD ($)
Finite-lived Intangible Assets Amortization Expense [Abstract]  
Remainder of 2018 $ 833
2019 2,263
2020 2,263
2021 2,263
2022 2,263
Thereafter 14,640
$ 24,525