XML 139 R125.htm IDEA: XBRL DOCUMENT v3.21.1
Right of Use Assets - Summary of Lease Expenses Recognized in Consolidated Income Statements (Detail) - USD ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disclosure of detailed information about Right-of-use assets [Line Items]      
Depreciation charge of right of use assets $ 621 $ 507  
Interest expenses (included in finance cost) 79 91 $ 4
Expenses relating to short-term leases 7 159  
Expenses relating to lease of low-value assets that are not short-term leases 10 15  
Land [Member]      
Disclosure of detailed information about Right-of-use assets [Line Items]      
Depreciation charge of right of use assets 280 211  
Buildings [Member]      
Disclosure of detailed information about Right-of-use assets [Line Items]      
Depreciation charge of right of use assets 278 233  
Motor vehicle and other asset [Member]      
Disclosure of detailed information about Right-of-use assets [Line Items]      
Depreciation charge of right of use assets 38 38  
Office equipment [Member]      
Disclosure of detailed information about Right-of-use assets [Line Items]      
Depreciation charge of right of use assets $ 25 $ 25