Annual report pursuant to Section 13 and 15(d)

STOCK BASED COMPENSATION - Restricted Stock Awards (Details)

v3.22.4
STOCK BASED COMPENSATION - Restricted Stock Awards (Details) - USD ($)
$ / shares in Units, shares in Thousands, $ in Thousands
 12 Months Ended
Sep. 28, 2020
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Weighted Average Grant Date Fair Value        
Total stock based compensation expenses $ 1,800 $ 48,785 $ 28,778 $ 8,006
Weighted-average period     1 year 7 months 6 days  
Restricted Stock awards        
Shares Subject to Vesting        
Balance at beginning of period, unvested shares (in shares)   264    
Cancelled/Forfeited   (5)    
Vested (in shares)   (157)    
Balance at end of period, unvested shares (in shares)   102 264  
Weighted Average Grant Date Fair Value        
Balance at beginning of Period, unvested shares (in dollars per share)   $ 7.79    
Cancelled/Forfeited (in dollars per share)   8.78    
Vested (in dollars per share)   7.11    
Balance at end of Period, unvested shares (in dollars per share)   $ 8.78 $ 7.79  
Total stock based compensation expenses   $ 1,000 $ 3,100 $ 600
Unrecognized stock-based compensation expense   $ 800    
Weighted-average period   1 year 1 month 6 days