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SEGMENT INFORMATION (Details) (USD $)
In Thousands, unless otherwise specified
3 Months Ended
Mar. 31, 2014
Segment
Mar. 31, 2013
SEGMENT INFORMATION [Abstract]    
Number of operating segments 3  
Segment information [Abstract]    
Net sales $ 85,995 $ 84,651
Earnings before income taxes 13,372 15,863
Transaction Costs (1,345) 0
Interest and other income (expense) 17 (2)
Domestic 56,144 55,440
Foreign 29,851 29,211
Net sales 85,995 84,651
Specialty Products [Member]
   
Segment information [Abstract]    
Net sales 12,792 12,780
Earnings before income taxes 4,806 4,909
Net sales 12,792 12,780
Food, Pharma and Nutrition [Member]
   
Segment information [Abstract]    
Net sales 12,150 11,008
Earnings before income taxes 2,601 2,507
Net sales 12,150 11,008
Animal Nutrition and Health [Member]
   
Segment information [Abstract]    
Net sales 61,053 60,863
Earnings before income taxes 7,293 8,449
Net sales $ 61,053 $ 60,863