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STOCK-BASED COMPENSATION - Unrecognized Compensation (Details) - Non employee - Restricted Shares
$ in Thousands
6 Months Ended
Jun. 30, 2022
USD ($)
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Unrecognized compensation cost $ 20
Vesting period 3 years
Compensation cost to be recognized over a remaining period 4 months 24 days