VALUATION AND QUALIFYING ACCOUNTS (Details) - USD ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Jan. 03, 2021 |
Dec. 29, 2019 |
|
| Allowance For Doubtful Accounts | ||
| Valuation and Qualifying Accounts | ||
| Balance at Beginning of Period | $ 132 | $ 192 |
| Additions: Charged To Costs and Expenses | 145 | 74 |
| Deductions: Credits to Costs and Expenses and Other Accounts | (134) | |
| Balance at End of Period | 277 | 132 |
| Lease Termination Costs and Asset Retirement Obligations | ||
| Valuation and Qualifying Accounts | ||
| Balance at Beginning of Period | 8 | 431 |
| Additions: Charged To Costs and Expenses | 182 | |
| Deductions: Credits to Costs and Expenses and Other Accounts | $ (8) | (605) |
| Balance at End of Period | $ 8 | |