Major Customers Narrative (Details)	3 Months Ended	6 Months Ended
Jun. 30, 2012	Jun. 30, 2011	Jun. 30, 2012 Major_Wholesale_Partners	Jun. 30, 2011 Major_Wholesale_Partners
Concentration Risks, Types, Major Customers [Abstract]
Major wholesale customer			3	2
revenues share from major wholesale partners	36.00%	22.00%	37.00%	26.00%
accounts receivable from major wholesale partners			49.00%

Percentage of revenue generated from a single external customer that accounts for 10 percent or more of an entity's revenues.

No definition available.

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