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12. Segments, Products and Customers (Tables)
12 Months Ended
Dec. 31, 2020
Segment Reporting [Abstract]  
Schedule of sales of products by category
   2020   2019 
In thousands  $   %   $   % 
                 
Drinkable Kefir other than ProBugs  $81,437    80%   $71,822    77% 
Cheese   12,905    13%    11,459    12% 
Cream and other   2,872    3%    4,228    4% 
ProBugs Kefir   2,733    2%    2,780    3% 
Other dairy   1,594    1%    1,756    2% 
Frozen Kefir (a)   485    1%    1,617    2% 
Net Sales  $102,026    100%   $93,662    100%