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Stockholders' Equity and Share-Based Compensation - Series A Convertible Preferred Stock (Details) $ / shares in Units, $ in Thousands |  |  |  | 12 Months Ended
--- | --- | --- | --- | ---
Jun. 19, 2020 $ / shares shares | Apr. 05, 2013 USD ($) shares | Mar. 25, 2013 USD ($) Vote $ / shares shares | Jan. 01, 2022 USD ($) shares | Jan. 02, 2021 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Common stock dividends during the period | $ |  |  |  | $ 0 | $ 0
Series A Convertible Preferred Stock |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |
Series A convertible preferred stock, shares authorized (in shares) |  |  | 4,150,000 |  |
Aggregate shares to be sold (in shares) |  |  | 4,150,000 |  |
Series A convertible preferred stock, par value | $ / shares |  |  | $ 0.001 |  |
Preferred stock purchase price per share (in dollars per share) | $ / shares |  |  | $ 1.45 |  |
Preferred stock purchase, amount | $ |  |  | $ 6,017 |  |
Preferred stock sold (in shares) | 2,620,687 | 150,000 | 4,000,000 |  |
Conversion of preferred stock | $ |  | $ 217 | $ 5,800 |  |
Preferred stock annual dividend rate (in dollars per share) | $ / shares |  |  | $ 0.058 |  |
Number of votes | Vote |  |  | 1 |  |
Cash dividends on amended credit | $ |  |  | $ 400 |  |
Cash dividends on preferred stock | $ |  |  |  | $ 0 | $ 71
Issuance of common stock in connection with preferred stock dividends (shares) |  |  |  | 0 | 45,000
Conversion rate of common stock for each share of Series A preferred stock (in shares) | 1 |  | 1 |  |
Minimum common stock price for consecutive thirty trading days for stock conversion (in dollars per share) | $ / shares | $ 4.35 |  |  |  |
Consecutive trading days for calculating weighted average price for the common stock | 30 days |  |  |  |
Series A convertible preferred stock, shares outstanding (in shares) |  |  |  | 0 | 0

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