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Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2012

Accounting Policies [Abstract]

Schedule of Goodwill [Table Text Block]

The following is a summary of activity in goodwill by reportable segment.

		Driver IC				Non-driver products				Consolidated Total
		(in thousands)
Balance, December 31, 2010		$	26,846				-				26,846
Balance, December 31, 2011		$	26,846				-				26,846
Balance, December 31, 2012		$	26,846				1,292				28,138

Schedule of Earnings Per Share Reconciliation [Table Text Block]

Basic and diluted earnings per ordinary share have been calculated as follows:

		Year Ended December 31,
		2010				2011				2012
Net income attributable to Himax Technologies, Inc. stockholders (in thousands)		$	33,206				10,706				51,596
Denominator for basic earnings per ordinary share:
Weighted average number of ordinary shares outstanding (in thousands)			355,037				353,771				341,056
Basic earnings per ordinary share attributable to Himax Technologies, Inc. stockholders		$	0.09				0.03				0.15

Schedule Of Earnings Per Share Reconciliation Under Treasury Stock Method [Table Text Block]

Contingently issuable ordinary shares underlying the unvested RSUs granted to employees are included in the calculation of diluted earnings per ordinary share based on treasury stock method. In 2011, the unvested 437,029 RSUs (represents 874,058 ordinary shares) which will vest in 2012 were excluded as their effect would be anti-dilutive.

		Year Ended December 31,
		2010				2011				2012
Net income attributable to Himax Technologies, Inc. stockholders (in thousands)		$	33,206				10,706				51,596
Denominator for diluted earnings per ordinary share:
Weighted average number of ordinary shares outstanding (in thousands)			355,037				353,771				341,056
Unvested RSUs (in thousands)			653				56				468
			355,690				353,827				341,524
Diluted earnings per ordinary share attributable to Himax Technologies, Inc. stockholders		$	0.09				0.03				0.15

Schedule Of Changes In CompanyS Ownership Interests In Subsidiaries [Table Text Block]

The effects of changes in the Company’s ownership interests in its subsidiaries on Himax Technologies, Inc. equity are set forth as follows:

		Year Ended December 31,
		2010				2011				2012
Net income attributable to Himax Technologies, Inc. stockholders		$	33,206				10,706				51,596
Transfers (to) from the noncontrolling interests:
Increase (decrease) in Himax Technologies, Inc.’s paid-in capital for sale of shares of subsidiaries			652				(382	)			501
Change from net income attributable to Himax Technologies, Inc. stockholders and transfers from noncontrolling interests		$	33,858				10,324				52,097

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 260

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-Section 50

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-Publisher FASB

-Name Statement of Financial Accounting Standard (FAS)

-Number 142

-Paragraph 45

-Subparagraph c

-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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-Number 142

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-LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy.



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