Quarterly report pursuant to Section 13 or 15(d)

SHARE-BASED COMPENSATION - Compensation Expenses (Details)

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SHARE-BASED COMPENSATION - Compensation Expenses (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2023
Sep. 30, 2022
Sep. 30, 2023
Sep. 30, 2022
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Compensation expense $ 726 $ 532 $ 2,129 $ 1,362
Stock options        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Compensation expense 394 325 1,096 846
Restricted stocks and Performance-based shares        
Share-based Payment Arrangement, Expensed and Capitalized, Amount [Line Items]        
Compensation expense $ 332 $ 207 $ 1,033 $ 516