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Inventories (Details) (USD $)
Mar. 31, 2013
Dec. 31, 2012
Inventories    
Raw materials $ 2,985,000 $ 1,152,000
Finished goods 128,000  
Total inventories 3,113,000 1,152,000
Inventory reserves 0 0
Inventory related to raw materials for Trokendi XR for which tentative approval received from FDA $ 2,000,000 $ 900,000