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Inventories (Details) - USD ($)
$ in Thousands
Dec. 31, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Finished goods $ 76,606 $ 67,187
Work in process 213 286
Raw materials 2,104 2,346
Packaging and supplies 1,022 1,122
Inventories 79,945 70,941
Inventory Reserves $ 5,100 $ 3,000