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Note 3 - Inventories (Details) - Components of Inventory (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2014
Dec. 31, 2013
Components of Inventory [Abstract]0    
Finished goods $ 48,072 $ 58,360
Raw materials and supplies 29,736 29,870
Equipment 2,062 1,388
Total inventory, net $ 79,870 $ 89,618