Share-Based Compensation (Details 3) (USD $)	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Himax Media Solutions [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares, Balance	288,500	1,179,125	1,541,562
Number of shares, Granted	0	0	9,750
Number of shares, Exercised	0	0	0
Number of shares, Forfeited	(11,250)	(890,625)	(372,187)
Number of shares, Balance	277,250	288,500	1,179,125	1,541,562
Number of shares, Exercisable	277,250
Weighted average exercise price, Balance	$ 1.244	$ 1.690	$ 1.696
Weighted average exercise price, Granted	$ 0	$ 0	$ 1.856
Weighted average exercise price, Exercised	$ 0	$ 0	$ 0
Weighted average exercise price, Forfeited	$ 1.244	$ 1.834	$ 1.721
Weighted average exercise price, Balance	$ 1.244	$ 1.244	$ 1.690	$ 1.696
Weighted average exercise price, Exercisable	$ 1.244
Weighted average remaining contractual term, Balance (in years)	0 years	0 years	9 months 19 days	1 year 9 months 19 days
Imaging Taiwan [Member]
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]
Number of shares, Balance	1,400,000	1,050,000	0
Number of shares, Granted	0	425,000	1,115,000
Number of shares, Exercised	0	0	0
Number of shares, Forfeited	(90,000)	(75,000)	(65,000)
Number of shares, Balance	1,310,000	1,400,000	1,050,000
Number of shares, Exercisable	655,000
Weighted average exercise price, Balance	$ 1.003	$ 1.004	$ 0
Weighted average exercise price, Granted	$ 0	$ 1.000	$ 1.004
Weighted average exercise price, Exercised	$ 0	$ 0	$ 0
Weighted average exercise price, Forfeited	$ 1.002	$ 1.004	$ 1.004
Weighted average exercise price, Balance	$ 1.003	$ 1.003	$ 1.004
Weighted average exercise price, Exercisable	$ 1.003
Weighted average remaining contractual term, Balance (in years)	1 year 6 months	2 years 6 months	3 years 6 months

The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan.

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iii)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

The weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan.

+ References

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- Definition

The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (c)(1)(iv)(3)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Gross number of share options (or share units) granted during the period.

+ References

No definition available.

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- Definition

Number of options outstanding, including both vested and non-vested options.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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- Definition

Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

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-SubTopic 10

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- Definition

Weighted average remaining contractual term for option awards outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

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

-Publisher FASB

-Name Accounting Standards Codification

-Topic 718

-SubTopic 10

-Section 50

-Paragraph 2

-Subparagraph (e)(1)

-URI http://asc.fasb.org/extlink&oid=6415400&loc=d3e5070-113901

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- Definition

Weighted average price at which option holders acquired shares when converting their stock options into shares.

+ References

No definition available.

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- Definition

Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated.

+ References

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- Definition

Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options.

+ References

No definition available.

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- Definition

Number of share options (or share units) exercised during the current period.

+ References

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

-Publisher SEC

-Name Regulation S-X (SX)

-Number 210

-Section 04

-Article 3

Reference 2: http://www.xbrl.org/2003/role/presentationRef

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-Name Accounting Standards Codification

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-SubTopic 10

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Reference 3: http://www.xbrl.org/2003/role/presentationRef

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-Publisher SEC

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