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Business and Credit Concentrations (Tables)
 3 Months Ended
Mar. 31, 2015
Risks and Uncertainties [Abstract]  
Schedule of significant portions of the Company's net sales
Significant portions of the Company’s net sales are as follows: 
 
Three Months Ended
 
March 31,
 
2015
 
2014
Net sales to foreign customers outside the U.S. and Canada
36.9
%
 
29.0
%