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Organization (Details Textual) | Dec. 28, 2013 Country Distributor
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Organization (Textual) [Abstract] |
Number of distributors | 70
Number of countries | 100

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- Definition Number of independent distributors. + References No definition available. + Details
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Namespace Prefix: | irix_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant

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- Details
Name: | irix_OrganizationTextualAbstract
Namespace Prefix: | irix_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The number of countries in which the entity operates as of balance sheet date. + References No definition available. + Details
Name: | us-gaap_NumberOfCountriesInWhichEntityOperates
Namespace Prefix: | us-gaap_
Data Type: | xbrli:integerItemType
Balance Type: | na
Period Type: | instant