XML 49 R56.htm IDEA: XBRL DOCUMENT v2.4.1.9

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

X

- Details

Name:	idi_BusinessAcquisitionInformationLineItems
Namespace Prefix:	idi_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Gain from extinguishment of acquisition consideration payable.

+ References

No definition available.

+ Details

Name:	idi_GainFromExtinguishmentOfAcquisitionConsiderationPayable
Namespace Prefix:	idi_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Details

Name:	dei_LegalEntityAxis=idi_AdIconCompanyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	dei_LegalEntityAxis=idi_ShanghaiBotangAdvertisingCompanyLimitedMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: