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Stock-Based Compensation (Disclosure of weighted-average assumptions used in the Black-Scholes option-pricing model) (Details) - Employee Stock Option [Member]
9 Months Ended
Sep. 26, 2020
$ / shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Grant-date stock price $ 4.73
Exercise price $ 4.73
Dividend yield 0.00%
Expected volatility 59.90%
Risk-free interest rate 0.40%
Expected life of options (in years) 6 years