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v2.4.1.9

Acquisition Consideration Payable - Additional Information (Detail) (USD $) In Thousands, unless otherwise specified | 1 Months Ended | 12 Months Ended
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Jul. 31, 2013 | Dec. 31, 2014 | Dec. 31, 2013
HK Ad-Icon [Member] |  |  |
Business Acquisition Information [Line Items] |  |  |
Extinguishment of consideration | $ 99 idi_GainFromExtinguishmentOfAcquisitionConsiderationPayable / dei_LegalEntityAxis = idi_AdIconCompanyLimitedMember |  |
Shanghai Botang [Member] |  |  |
Business Acquisition Information [Line Items] |  |  |
Extinguishment of consideration |  | $ 464 idi_GainFromExtinguishmentOfAcquisitionConsiderationPayable / dei_LegalEntityAxis = idi_ShanghaiBotangAdvertisingCompanyLimitedMember | $ 464 idi_GainFromExtinguishmentOfAcquisitionConsiderationPayable / dei_LegalEntityAxis = idi_ShanghaiBotangAdvertisingCompanyLimitedMember

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- Details
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- Definition Gain from extinguishment of acquisition consideration payable. + References No definition available. + Details
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- Details
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Data Type: | na
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X
- Details
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Balance Type: |
Period Type: |