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Subsequent Events (Details Textual) (USD $) In Millions, unless otherwise specified | 1 Months Ended |
--- | --- | ---
Mar. 31, 2013 | Feb. 28, 2013 | Jan. 09, 2013
Subsequent Events (Textual) [Abstract] |  |  |
Company received in the form of a cash distribution from an insurance carrier |  |  | $ 0.5
Board of Directors approved a new one year stock repurchase program |  | 3.0 |
Previous stock repurchase program authorized amount |  | 4.0 |
Company committed to purchase product annually | $ 0.8 |  |
Term of the agreement | 4 years |  |

X
- Definition Cash received from insurance carrier. + References No definition available. + Details
Name: | irix_CashReceivedFromInsuranceCarrier
Namespace Prefix: | irix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Long term purchase commitment period. + References No definition available. + Details
Name: | irix_LongTermPurchaseCommitmentPeriod
Namespace Prefix: | irix_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Previous stock repurchase program authorized amount. + References No definition available. + Details
Name: | irix_PreviousStockRepurchaseProgramAuthorizedAmount
Namespace Prefix: | irix_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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

X
- Definition The minimum amount the entity agreed to spend under the long-term purchase commitment. + References No definition available. + Details
Name: | us-gaap_LongTermPurchaseCommitmentAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount authorized by an entity's Board of Directors under a stock repurchase plan. + References No definition available. + Details
Name: | us-gaap_StockRepurchaseProgramAuthorizedAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration