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SHARE-BASED COMPENSATION (Details Textual) - USD ($)
3 Months Ended 9 Months Ended
Sep. 29, 2019
Sep. 30, 2018
Sep. 29, 2019
Sep. 30, 2018
Dec. 30, 2018
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Options converted     38,614    
Shares outstanding 10,242,114   10,242,114   10,227,247
Employee Stock Option          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share based compensation expense $ 200,000 $ 800,000 $ 800,000 $ 900,000  
Unamortized stock compensation expense 2,000,000.0   $ 2,000,000.0    
Unamortized stock compensation expense, recognition period     3 years    
Shares issued in period     16,694    
Restricted stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share based compensation expense $ 100,000   $ 200,000    
Shares outstanding 27,000   27,000    
Granted (in dollars per share)     $ 28.61    
Stock options and restricted stock          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Options converted     47,790    
Granted (in dollars per share)     $ 21.49    
Warrant          
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]          
Share based compensation expense $ 0 $ 0      
Non-option equity instruments, nonvested, number of shares 0   0   0
Shares issued in period     423    
Options converted     1,020