Other (expense) income (Tables)

12 Months Ended

Dec. 31, 2019

Other (expense) income

Schedule of components of other (expense) income

The components of other (expense) income are summarized below (in thousands):

	Year Ended
	December 31,
	2019		2018		2017
Foreign exchange gain (loss)	$	321	$	165	$	(602)
Gain on available-for-sales securities		—		—		77
Gain from local China government subsidy		808		—		—
Other income (expense)		(182)		187		(28)
	$	947	$	352	$	(553)