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12. Segments, Products and Customers (Tables)
3 Months Ended
Mar. 31, 2019
Segment Reporting [Abstract]  
Schedule of sales of products by category
    2019     2018  
    $     %     $     %  
Drinkable Kefir other than ProBugs   $ 18,886       77%     $ 21,663       76%  
Cheese     2,851       12%       2,934       10%  
Cream and other     1,301       5%       1,492       5%  
ProBugs Kefir     763       3%       952       3%  
Other dairy     479       2%       1,337       5%  
Frozen Kefir (a)     335       1%       364       1%  
Net Sales   $ 24,615       100%     $ 28,742       100%