The Company - (Details) (STX Wireless [Member])	12 Months Ended
Dec. 31, 2012
STX Wireless [Member]
Variable Interest Entity [Line Items]
Controlling membership percentage	75.75%

Percentage of subsidiary's or equity method investee's stock owned by parent immediately after all stock transactions.

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

-Publisher SEC

-Name Staff Accounting Bulletin (SAB)

-Number Topic 5

-Section H

Name:	us-gaap_SubsidiaryOrEquityMethodInvesteeCumulativePercentageOwnershipAfterAllTransactions
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration