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Bank Borrowings (Details) | 12 Months Ended
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Dec. 29, 2012
Bank Borrowings (Textual) [Abstract] |
Loan and security agreement with Silicon Valley Bank | 2012-06

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

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- Definition Loan and security agreement with Silicon Valley Bank. + References No definition available. + Details
Name: | irix_LoanAndSecurityAgreementWithSiliconValleyBank
Namespace Prefix: | irix_
Data Type: | xbrli:gYearMonthItemType
Balance Type: | na
Period Type: | duration