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Noncurrent Assets Held for Sale (Tables)

12 Months Ended

Dec. 31, 2021

Discontinued Operations and Disposal Groups [Abstract]

Summary of Noncurrent Assets Held for Sale

		December 31
		2020				2021
		US$				US$
Assets held for sale			11,124				—
			11,124				—

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Summary of non current assets held for sale.

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