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Concentrations (Details)
6 Months Ended 12 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2014
Net sales
item
Jun. 30, 2013
Net sales
item
Jun. 30, 2014
Net sales
Customer one
Jun. 30, 2013
Net sales
Customer one
Jun. 30, 2014
Net sales
Customer two
Jun. 30, 2013
Net sales
Customer two
Jun. 30, 2014
Accounts receivable
item
Dec. 31, 2013
Accounts receivable
item
Jun. 30, 2014
Accounts receivable
Customer one
Dec. 31, 2013
Accounts receivable
Customer one
Dec. 31, 2013
Accounts receivable
Customer two
Concentration Risk                      
Number of customers 2 2         1 2      
Customer's percentage of net sales     33.00% 26.00% 11.00% 11.00%     44.00% 47.00% 14.00%