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Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2016

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment [Table Text Block]

		December 31,
		2015			2016
		(in thousands)
Land		$	14,328			14,328
Building and improvements			22,460			22,821
Machinery			42,770			42,687
Research and development equipment			25,949			26,695
Software			13,260			12,902
Office furniture and equipment			10,655			11,210
Others			24,793			27,269
			154,215			157,912
Accumulated depreciation and amortization			(101,373)			(111,915)
Prepayment for purchases of land and equipment			1,619			2,175
		$	54,461			48,172

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- References

No definition available.

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- Definition

Tabular disclosure of physical assets used in the normal conduct of business and not intended for resale. Includes, but is not limited to, balances by class of assets, depreciation and depletion expense and method used, including composite depreciation, and accumulated deprecation.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6391035&loc=d3e2868-110229

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(13))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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