Accumulated Other Comprehensive Income (Loss) (Tables)

12 Months Ended

Dec. 31, 2017

Equity [Abstract]

Schedule od Components and Changes of Accumulated Other Comprehensive Income (Loss)

The components and changes of accumulated other comprehensive income (loss), net of related income tax effects, are as follows (in thousands):

Balance as of December 31, 2014	$	83
Foreign currency translation adjustment		(397	)
Unrealized gains on investment		91
Balance as of December 31, 2015		(223	)
Foreign currency translation adjustment		(1,048	)
Unrealized (loss) on investment		(33	)
Balance as of December 31, 2016		(1,304	)
Foreign currency translation adjustment		1,184
Unrealized (loss) on investment		(26	)
Balance as of December 31, 2017	$	(146	)