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RELATED PARTY NOTES PAYABLE (Details) - USD ($)
$ in Thousands
7 Months Ended 8 Months Ended 12 Months Ended
Oct. 23, 2020
Oct. 23, 2020
Dec. 31, 2019
Dec. 31, 2020
May 28, 2020
Feb. 01, 2020
Jan. 31, 2020
Nov. 07, 2019
Debt Instrument [Line Items]                
Interest cost     $ 100 $ 700        
Interest cost capitalized as part of PPE     100 300        
Interest expense   $ 400            
Outstanding balance     20,142          
GM | Convertible Note                
Debt Instrument [Line Items]                
Maximum borrowing capacity         $ 10,000      
Conversion of note payable to equity $ 5,000              
GM | Note Payable                
Debt Instrument [Line Items]                
Conversion of note payable to equity $ 20,800              
Stated interest rate (as a percent)           7.00% 5.00%  
Principal amount               $ 20,000
Interest cost capitalized as part of PPE       $ 400        
Interest expense   $ 400            
Outstanding balance     $ 20,100