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Fair Value Measurements (Tables)

12 Months Ended

Dec. 31, 2014

Fair Value Disclosures [Abstract]

Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block]

The following table presents the Company’s financial assets and liabilities that are measured at fair value on a recurring basis which were comprised of the following types of instruments at December 31, 2013 and 2014:

		Fair Value Measurements at
		December 31, 2013 Using
		Level 1			Level 2			Level 3
		(in thousands)
Assets:
Cash and cash equivalents:
Time deposits with original maturities less than three months		$	35,684			-			-
Marketable securities available-for-sale:
Time deposit with original maturities more than three months			-			788			-
Restricted marketable securities:
Time deposits with original maturities of more than three months			-			3,034			-
Total		$	35,684			3,822			-
Liabilities:
Short-term debt		$	-			105,500			-
Other current liabilities:
Warrant obligation			-			-			1,255
Total		$	-			105,500			1,255

		Fair Value Measurements at
		December 31, 2014 Using
		Level 1			Level 2			Level 3
		(in thousands)
Assets:
Cash and cash equivalents:
Time deposits with original maturities less than three months		$	39,619			-			-
Marketable securities available-for-sale:
Time deposit with original maturities more than three months			-			158			-
Open-ended bond fund			2,219			-			-
Restricted marketable securities:
Time deposits with original maturities of more than three months			-			337			-
Total		$	41,838			495			-
Liabilities:
Short-term debt		$	-			130,000			-
Total		$	-			130,000			-

Fair Value Measurements, Nonrecurring [Table Text Block]

The following table presents fair value measurements of assets that are measured at fair value on a nonrecurring basis at December 31, 2012 and 2014 and the associated losses recognized in 2012 and 2014 (nil in 2013):

		Fair Value Measurements at reporting Date Using
														For the Year Ended December
														31, 2012
		December 31, 2012			Level 1			Level 2			Level 3			Impairment loss
		(in thousands)
Assets:
Investments in Non-marketable Equity Securities- eTurbo Touch Technology Inc.		$	477			-			-			477			238

		Fair Value Measurements at reporting Date Using
														For the Year Ended December
														31, 2014
		December 31, 2014			Level 1			Level 2			Level 3			Impairment loss
	(in thousands)
Assets:
Investments in Non-marketable Equity Securities- Oculon Optoelectronics Inc.		$	-			-			-			-			309

Fair Value, Measured on Recurring Basis, Gain (Loss) Included in Earnings [Table Text Block]

The following table summarizes changes in Level 3 assets and liabilities measured at fair value on a recurring basis for the year ended December 31, 2013 and 2014:

		Warrant obligation
		(in thousands)
Balance at December 31, 2012		$	-
Liability for warrant obligation			1,415
Unrealized gain for change in the fair value of the warrant included in earnings			(160)
Balance at December 31, 2013		$	1,255
Gain for expiration of the warrant included in earnings			(1,255)
Balance at December 31, 2014		$	-
The amount of total gain in 2013 included in earnings attributable to the change in unrealized gain relating to assets and liabilities still held at December 31, 2013		$	160

X

- Definition

Tabular disclosure of the amount of gains or losses for the period included in earnings or resulted in a change to net assets, have arisen from the use of significant unobservable inputs (level 3) to measure the fair value of assets, liabilities, and financial instruments classified in shareholders' equity.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1),(d)

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19207-110258

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X

- Definition

Tabular disclosure of assets and liabilities by class, including financial instruments measured at fair value that are classified in shareholders' equity, if any, that are measured at fair value on a nonrecurring basis in periods after initial recognition (for example, impaired assets). Disclosures may include, but are not limited to: (a) the fair value measurements recorded and the reasons for the measurements and (b) the level within the fair value hierarchy in which the fair value measurements are categorized in their entirety (levels 1, 2, 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 5

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19296-110258

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X

- Definition

Tabular disclosure of assets and liabilities, including [financial] instruments measured at fair value that are classified in stockholders' equity, if any, that are measured at fair value on a recurring basis. The disclosures contemplated herein include the fair value measurements at the reporting date by the level within the fair value hierarchy in which the fair value measurements in their entirety fall, segregating fair value measurements using quoted prices in active markets for identical assets (Level 1), significant other observable inputs (Level 2), and significant unobservable inputs (Level 3).

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 820

-SubTopic 10

-Section 50

-Paragraph 1

-URI http://asc.fasb.org/extlink&oid=36462937&loc=d3e19190-110258

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