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Related-party Transactions (Tables)

12 Months Ended

Dec. 31, 2017

Related Party Transactions [Abstract]

Schedule of Related Party Transactions [Table Text Block]

The Company made an interest-free loan to VST and Emza for their short-term funding needs, is summarized as follows:

		December 31,
		2016			2017
		(in thousands)
VST		$	7,150			2,750
Emza			-			500
		$	7,150			3,250

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- Definition

Tabular disclosure of related party transactions. Examples of related party transactions include, but are not limited to, transactions between (a) a parent company and its subsidiary; (b) subsidiaries of a common parent; (c) and entity and its principal owners and (d) affiliates.

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