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INCOME TAXES - Unrecognized Tax Benefits (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 29, 2019
Dec. 30, 2018
Dec. 31, 2017
Reconciliation of Unrecognized Tax Benefits, Excluding Amounts Pertaining to Examined Tax Returns [Roll Forward]      
Balance, beginning of fiscal year $ 2,190 $ 2,210 $ 2,242
Increases for tax positions related to the current year 318 377 356
Reductions due to lapsed statute of limitations (430) (397) (388)
Balance, end of fiscal year $ 2,078 $ 2,190 $ 2,210