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Stockholders' Equity - Restricted Stock Purchased and Retired (Details) - Restricted Stock - USD ($)
$ / shares in Units, $ in Thousands
12 Months Ended
Oct. 29, 2021
Dec. 24, 2020
May 20, 2020
Mar. 30, 2020
Dec. 31, 2021
Dec. 31, 2020
Stockholders' Equity            
Total Number of Shares Purchased 9,187 2,478 87,249 155,556 9,187 245,283
Actual Price Paid Per Share (in dollars per share) $ 1.73 $ 1.14 $ 0.98 $ 0.65 $ 1.73 $ 0.77
Number of Shares Purchased as Part of Publicly Announced Plan 0 0 0 0 0 0
Fair value of Re-Purchased Shares $ 16,000 $ 3,000 $ 85,000 $ 102,000 $ 16,000 $ 190,000