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Inventories (Details Textual) (USD $)
In Millions, unless otherwise specified
1 Months Ended
Jan. 31, 2014
Jun. 30, 2014
Dec. 31, 2013
Inventories (Textual) [Abstract]      
Shelf life 5 years    
Extended shelf life 6 years    
Reserve for potential obsolescence of products   $ 3.4 $ 3.5