Equity Method Investments (Tables)

12 Months Ended

Dec. 31, 2018

Investments accounted for using equity method [abstract]

Disclosure of detailed information about Investment in Associates [Text Block]

Associates consisted of the following:

			January 1, 2017				December 31, 2017				December 31, 2018
Name of Associate	Principal Activities	Place of Incorporation and operation	Carrying amount		Holding %		Carrying amount		Holding %		Carrying amount		Holding %
Emza Visual Sense Ltd.	Development of visual sensors and efficient machine vision algorithm	Israel	$	-		-		1,802		45.10		-		-
Ganzin Technology Corp.	Eye tracking chip and module	Taipei, Taiwan		-		-		95		28.93		1,473		49.32
Iris Optronics Co., Ltd.	E-paper manufacturing and sales	Tainan, Taiwan		44		2.06		30		2.06		44		1.55
Kneron Inc.	Artificial intelligence chip design	California, USA		-		-		6,598		27.65		-		-
ViewsilMicroelectronics (Kunshan) Limited	IC design and sales	Kunshan, China		2,318		49.00		2,214		49.00		2,547		49.00
			$	2,362				10,739				4,064

Disclosure of detailed information about Share of Associates [Text Block]

There is no individually significant associate for the Company. The following table summarized the amount recognized by the Company at its share of those associates:

	For the year ended December 31,
	2017			2018
	(in thousands)

The Company’s share of losses of associates	$	(1,200	)		(1,095	)
The Company’s share of other comprehensive income (loss) of associates	$	106			(68	)
The Company’s share of total comprehensive income (loss) of associates	$	(1,094	)		(1,163	)