Property and Equipment, net

12 Months Ended

Dec. 31, 2019

Property Plant And Equipment [Abstract]

Property and Equipment, net

8. Property and equipment, net

Property and equipment consist of the following:

	As of December 31,
	2018			2019
	$			$
Office equipment		384			397
Electronic equipment		599			1,482
Vehicle		77			76
Laboratory equipment		3,917			5,854
Manufacturing equipment		9,369			11,049
Leasehold improvements		4,608			7,528
Construction in progress		3,748			428
		22,702			26,814
Less: accumulated depreciation		(2,208	)		(5,461	)
Property and equipment, net		20,494			21,353

Depreciation expenses for the years ended December 31, 2017, 2018 and 2019 were $546, $1,634 and $3,372, respectively.