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STOCK-BASED COMPENSATION - Restricted Stock (Details) - Restricted Stock
shares in Thousands
3 Months Ended
Mar. 29, 2020
$ / shares
shares
Number of Awards  
Unvested at beginning of period | shares 143
Granted | shares 10
Vested | shares (14)
Unvested at end of period | shares 139
Weighted Average Award Date Fair Value  
Unvested at beginning of period | $ / shares $ 5.00
Granted | $ / shares 3.40
Vested | $ / shares 4.71
Unvested at end of period | $ / shares $ 4.91
Weighted Average Remaining Contractual Life  
Unvested at end of period 2 years 10 months 24 days