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ORDINARY SHARE AND SHARE INCENTIVE PLANS - Allocation of Stock-based Compensation Expense (Details) - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Stock based compensation expense      
Stock-based compensation expense recognized $ 293 $ 603 $ 504
Cost of Net Sales      
Stock based compensation expense      
Stock-based compensation expense recognized 28 97 87
Selling, general and administrative      
Stock based compensation expense      
Stock-based compensation expense recognized 151 258 236
Research and development      
Stock based compensation expense      
Stock-based compensation expense recognized $ 114 $ 248 $ 181