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Subsequent Events (Details) (Subsequent event, Valassis, USD $) | Feb. 28, 2014
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Subsequent event | Valassis |
Subsequent events |
Payment made for marketing and service agreement | $ 500,000

X
- Definition Represents the payment made for marketing and service agreement. + References No definition available. + Details
Name: | isig_PaymentForMarketingAndServiceAgreement
Namespace Prefix: | isig_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | us-gaap_SubsequentEventLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration