Summary of Significant Accounting Policies (Details)	3 Months Ended
Mar. 31, 2013	Mar. 31, 2012
Summary of Significant Accounting Policies (Textual) [Abstract]
Number of Major Customers	4
Percentage of net revenue	56.70%	66.90%

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