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Other Current Liability - Summary of Other Current Liability (Detail) - USD ($)
$ in Thousands
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Miscellaneous Current Liabilities [Abstract]      
Liabilities arising from contracts with customers $ 216 $ 756  
Dividend payable 674 565  
Deferred government grant   318  
Onerous contracts provisions 238 42 $ 555
Other current liabilities 1,228 1,591  
Total $ 2,356 $ 3,272