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3. Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2018
Dec. 31, 2017
Inventory Disclosure [Abstract]    
Ingredients $ 1,580 $ 1,717
Packaging 2,072 2,453
Finished goods 2,165 3,527
Total inventories, net $ 5,817 $ 7,697