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LEASES - Lease expense (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jul. 02, 2022
Jul. 02, 2022
Dec. 31, 2021
Leases      
Retained earnings $ (47,411) $ (47,411) $ (48,583)
Components of lease expense:      
Operating lease expense 2,366 4,504  
Short-term lease expense 12 32  
Variable lease expense 126 304  
Total lease expense $ 2,504 $ 4,840  
ASU 2016-02 | Adjustment      
Leases      
Retained earnings     $ (300)