Components of Other Income, net (Tables)

12 Months Ended

Dec. 31, 2021

Other Income and Expenses [Abstract]

Schedule of Other Income (Loss)

Other income, net consists of the following (in thousands of dollars):

	Year Ended December 31,
	2021		2020		2019
French research tax credits	$	1,535	$	—	$	—
Interest and dividend income	135		594		3,025
Interest expense	(241)		(229)		(677)
Gain (loss) on currency revaluation	(1,081)		56		—
Other	(94)		59		180
Total	$	254	$	480	$	2,528