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Investment securities, including securities measured at fair value (Details 1) (Corporate Convertible Bond [Member], USD $) In Thousands, unless otherwise specified | Dec. 31, 2011
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Corporate Convertible Bond [Member] |
Corporate bond-available for sale, Aggregate Cost | $ 4,365
Corporate bond-available for sale, Gross unrealized gains | 596
Corporate bond-available for sale, Discount amortization | 119
Corporate bond-available for sale, Aggregate market value | 5,080
Conversion option, Aggregate Cost | 684
Conversion option, Gross unrealized gains | 0
Conversion option, Gross unrealized losses | 510
Conversion option, Fair value | $ 174

X
- Definition This item represents the gross unrealized gains for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
Name: | himx_AvailableForSaleOfSecuritiesGrossUnrealizedGain
Namespace Prefix: | himx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the Aggregate Cost for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
Name: | himx_AvailableForSaleSecuritiesAggregateCost
Namespace Prefix: | himx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the Aggregate Market Value for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
Name: | himx_AvailableForSaleSecuritiesAggregateMarketValue
Namespace Prefix: | himx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition This item represents the Discount Amortization for securities, at a point in time, which are categorized neither as held-to-maturity nor trading securities. + References No definition available. + Details
Name: | himx_AvailableForSaleSecuritiesDiscountAmortization
Namespace Prefix: | himx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Represents the aggregate cost of convertible debt instrument. + References No definition available. + Details
Name: | himx_DebtInstrumentConvertibleAggregateCost
Namespace Prefix: | himx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the fair value disclosure of convertible debt instrument. + References No definition available. + Details
Name: | himx_DebtInstrumentConvertibleFairValue
Namespace Prefix: | himx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the gross unrealized gain of convertible debt instrument. + References No definition available. + Details
Name: | himx_DebtInstrumentConvertibleGrossUnrealizedGains
Namespace Prefix: | himx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Represents the gross unrealized loss of convertible debt instrument. + References No definition available. + Details
Name: | himx_DebtInstrumentConvertibleGrossUnrealizedLosses
Namespace Prefix: | himx_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant