Financial Instruments - Additional Information (Detail) (GovDelivery, USD $)	12 Months Ended
Dec. 31, 2012
GovDelivery
Derivatives Fair Value [Line Items]
Estimated fair value of contingent consideration liability at acquisition date	$ 700,000
Current estimated fair value of contingent consideration liability	0
Gain on change in fair value of contingent consideration obligations	$ 700,000

Business Acquisition Contingent Consideration Recognized Gain For Changes In Fair Value

No definition available.

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Namespace Prefix:	icge_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- Definition

This element represents the amount of any change recognized during the period in the high-end of the estimated range of outcomes (undiscounted) of a liability assumed in a business combination arising from an item of contingent consideration.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 805

-SubTopic 30

-Section 50

-Paragraph 4

-Subparagraph (a)(2)

-URI http://asc.fasb.org/extlink&oid=7488404&loc=d3e7008-128479

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
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Period Type:	duration

- Definition

This element represents the amount of any change recognized during the period in the low-end of the estimated range of outcomes (undiscounted) of a liability assumed in a business combination arising from an item of contingent consideration.

+ References

+ Details

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Namespace Prefix:	us-gaap_
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- Details

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