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12. Segments, Products and Customers (Tables)
9 Months Ended
Sep. 30, 2017
Segment Reporting [Abstract]  
Schedule of sales of products by category
   Three months ended
September 30,
   Nine months ended
September 30,
 
   2017   2016   2017   2016 
Drinkable Kefir (a)  $25,134   $25,533   $80,382   $80,135 
Lifeway cheese products   2,561    2,479    7,750    7,579 
Pro Bugs Kefir products   819    1,606    3,586    4,962 
Frozen Kefir   272    372    918    1,015 
Net Sales  $28,786   $29,990   $92,636   $93,691