XML 31 R56.htm IDEA: XBRL DOCUMENT v3.3.0.814
Major Customers (Details) - customer
3 Months Ended 9 Months Ended 12 Months Ended
Sep. 30, 2015
Sep. 30, 2014
Sep. 30, 2015
Sep. 30, 2014
Dec. 31, 2014
Sales Revenue, Goods, Net          
Concentration Risk [Line Items]          
Number of customers 1 1 1 1  
Concentration risk (as a percent) (more than for 10.0%) 10.00% 10.00% 10.00% 10.00%  
Customer Concentration Risk | Sales Revenue, Goods, Net          
Concentration Risk [Line Items]          
Number of customers 5 5,000,000 5 5,000,000  
Concentration risk (as a percent) (more than for 10.0%) 40.60% 35.10% 39.60% 33.60%  
Credit Concentration Risk | Accounts Receivable          
Concentration Risk [Line Items]          
Number of customers     5    
Concentration risk (as a percent) (more than for 10.0%)     35.60%   32.00%