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VALUE CREATION INCENTIVE PLAN (Details) - USD ($)
12 Months Ended
Dec. 28, 2019
Dec. 29, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
PE and PEAR awards liability $ 1,842,000 $ 959,000
VCIP | PE or PEARs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Payment period following vesting 3 years  
Total future compensation expense related to unvested awards yet to be recognized $ 1,635,000  
Weighted-average remaining vesting period 4 years 1 month 6 days  
Stock-based compensation expense $ 204,000  
PE and PEAR awards liability 496,000  
PE and PEAR awards liability from acquisition $ 292,000  
VCIP | Maximum | PE or PEARs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period 5 years  
VCIP | Minimum | PE or PEARs    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Vesting period 4 years