Commitments and Contingencies (Details 2) (USD $) In Millions, unless otherwise specified	0 Months Ended
Jul. 26, 2013 Cheetah Omni LLC [Member]	Mar. 16, 2012 Graywire LLC [Member] claim	May 29, 2008 Graywire LLC [Member] defendant
Loss Contingencies [Line Items]
Litigation Settlement, Amount	$ 1.5
Number of defendants other than reporting entity			4
Number of claims settled		2

Amount of judgment or settlement awarded to (against) the entity in respect of litigation.

No definition available.

Name:	us-gaap_LitigationSettlementAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration