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VALUE CREATION INCENTIVE PLAN (Details) - USD ($)
3 Months Ended 12 Months Ended
Mar. 28, 2020
Dec. 28, 2019
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
PE and PEAR awards liability $ 1,945,000 $ 1,842,000
Beginning balance 496,000  
Change due to vesting of awards granted 166,000  
Change in fair value measurement of liability (52,000)  
Ending balance $ 610,000 496,000
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   $ 1,595,000
Weighted-average remaining vesting period   3 years 9 months 18 days
Stock-based compensation expense   $ 114,000
PE and PEAR awards liability   610,000
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