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Common Stock and Stockholders’ Equity (Deficit) (Details) (Weighted Average Valuation Assumptions for Stock Options) - Stock Options
12 Months Ended
Dec. 31, 2016
Dec. 26, 2015
Dec. 27, 2014
Stock Options, Valuation Assumptions [Line Items]      
Expected volatility 62.33% 60.14% 53.36%
Risk-free interest rate 1.02% 1.29% 1.15%
Expected dividends 0.00% 0.00% 0.00%
Expected life 3 years 11 months 23 days 3 years 10 months 27 days 3 years 10 months 10 days