GOODWILL AND INTANGIBLE ASSETS (Tables)

6 Months Ended

Jun. 30, 2022

Disclosure Of Goodwill And Intangible Assets [Abstract]

Schedule of Goodwill and Intangible Assets

	June 30, 2022			December 31, 2021
	US$000			US$000
Cost
Goodwill		79,182			79,182
Development costs		124,310			121,173
Patents and licenses		8,718			8,707
Other		33,254			33,198
Total cost		245,464			242,260
Less accumulated amortization and impairment		(206,721	)		(206,279	)
Carrying amount		38,743			35,981