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Acquisitions (Details) (USD $)
In Thousands, unless otherwise specified
Apr. 27, 2012
Praml International Ltd [Member]
Nov. 07, 2011
Provvista Speciality Foods Inc [Member]
Jun. 24, 2011
Harry Wils & Co. [Member]
Details of assets and liabilities acquired      
Current assets $ 3,315 $ 3,107 $ 1,187
Customer relationships 4,187 1,707 2,753
Trademarks 1,369 300  
Goodwill 10,190 4,143 4,968
Non-compete agreement 1,254    
Fixed assets   100  
Current liabilities (767) (508)  
Purchase price $ 19,548 $ 8,849 $ 8,908