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SEGMENT INFORMATION - Reconciliation of Segment Operating Profit (Loss) (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure Of Operating Segments [Line Items]      
Segment operating profit/(loss) $ 7,552 $ (5,333) $ 6,872
Consolidated Operating Profit Loss 7,552 (5,333) 6,872
Other operating income 1,027 587 814
Other operating expenses (512) (227) (129)
Operating profit/(loss) 8,067 (4,973) 7,557
Finance costs (1,650) (1,251) (744)
Finance income 120 123 320
Share of loss of associates (1) (1) (1)
Exchange gain/(loss) 143 (4,425) (579)
Other income 889 671 1,173
Other expense (3) (1) (1)
Profit/(loss) before tax 7,565 (9,857) 7,725
Segment operating profit/(loss)      
Disclosure Of Operating Segments [Line Items]      
Segment operating profit/(loss) 10,645 (2,324) 9,845
Finance income 119 122 319
Corporate expenses and others      
Disclosure Of Operating Segments [Line Items]      
Segment operating profit/(loss) (3,093) (3,009) (2,973)
Corporate expenses and others (3,093) (3,009) (2,973)
Finance income 1 1 1
Segment reconciling items      
Disclosure Of Operating Segments [Line Items]      
Other operating income 1,027 587 814
Other operating expenses (512) (227) (129)
Finance costs (1,650) (1,251) (744)
Finance income 120 123 320
Share of loss of associates (1) (1) (1)
Exchange gain/(loss) 143 (4,425) (579)
Other income 889 671 1,173
Other expense $ (3) $ (1) $ (1)