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STOCKHOLDERS' EQUITY AND STOCK-BASED COMPENSATION - Summary of Activity for Nonvested Restricted Common Stock Awards (Details) - USD ($)
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 28, 2019
Sep. 28, 2019
Dec. 30, 2017
Weighted Average Grant Fair Value      
Beginning Balance (in usd per shares)   $ 1,700,000  
Unvested Restricted Stock Awards      
Shares      
Beginning Balance (in shares)   2,213,249  
Equity instruments granted in period (in shares)   150,000  
Forfeited (in shares)   (275,625)  
Vested (in shares)   (70,000)  
Ending Balance (in shares) 2,017,624 2,017,624  
Weighted Average Grant Fair Value      
Beginning Balance (in usd per shares)   $ 2.51  
Granted (in usd per shares)   1.19  
Forfeited (in usd per shares)   2.95  
Vested (in usd per shares)   3.32  
Ending Balance (in usd per shares) $ 2.33 $ 2.33  
Share-based Compensation Award, Tranche One | Restricted Stock      
Shares      
Equity instruments granted in period (in shares)     640,000
Weighted Average Grant Fair Value      
Performance price target (in usd per share)     $ 5.25
Expected volatility 48.30%    
Interest rate 1.97%    
Expected life (years) 3 years    
Dividend yield 0.00%    
Share-based Compensation Award, Tranche Two | Restricted Stock      
Shares      
Equity instruments granted in period (in shares)     150,000
Weighted Average Grant Fair Value      
Performance price target (in usd per share)     $ 6.00
Expected volatility 48.30%    
Interest rate 1.97%    
Expected life (years) 3 years    
Dividend yield 0.00%    
Share-based Compensation Award, Tranche Three | Restricted Stock      
Shares      
Equity instruments granted in period (in shares)     150,000
Weighted Average Grant Fair Value      
Performance price target (in usd per share)     $ 7.00
Expected volatility 48.30%    
Interest rate 1.97%    
Expected life (years) 3 years    
Dividend yield 0.00%