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Segments, Products and Customers (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2016
Jun. 30, 2015
Jun. 30, 2016
Jun. 30, 2015
Net sales $ 31,131 $ 29,821 $ 63,701 $ 59,443
Drinkable Kefir Other Than ProBugs [Member]        
Net sales 26,535 25,234 54,602 50,821
ProBugs[Member]        
Net sales 1,716 2,291 3,357 4,297
Lifeway Farmer Cheese [Member]        
Net sales 2,462 1,742 5,099 3,464
Frozen Kefir [Member]        
Net sales $ 418 $ 554 $ 643 $ 861