Economic Dependence and Major Customers (Details Textual)	12 Months Ended
Dec. 31, 2012 Customer	Dec. 31, 2011 Customer
Economic Dependence and Major Customers (Textual) [Abstract]
Number of major customers	9	9
Revenue major customer percentage	100.00%	100.00%

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