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SONOVA Gamma Linolenic Acid ("GLA") Safflower Oil Inventory - Summary of Inventories (Detail) - USD ($)
$ in Thousands
Mar. 31, 2017
Dec. 31, 2016
Inventory Disclosure [Abstract]    
Raw materials $ 44 $ 44
Finished goods 1,474 1,535
Inventories $ 1,518 $ 1,579