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11. INTANGIBLE ASSETS (Details 1)
12 Months Ended
Dec. 31, 2018
Dec. 31, 2017
Software    
Disclosure of detailed information about intangible assets [line items]    
Estimated useful life 7 years 8 years
Customer relationships    
Disclosure of detailed information about intangible assets [line items]    
Estimated useful life 13 years 13 years