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STOCK-BASED COMPENSATION - IPO (Details) - Restricted shares - USD ($)
$ in Thousands
6 Months Ended
Nov. 26, 2019
Jun. 30, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted (in shares) 8,000  
Non employee    
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]    
Granted (in shares) 2,000 0
Aggregate grant date fair value $ 150  
Vesting period 3 years 3 years