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Inventory (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Mar. 31, 2014
Inventory Details    
Work-in-process $ 169us-gaap_InventoryWorkInProcess $ 23us-gaap_InventoryWorkInProcess
Finished goods 535us-gaap_InventoryFinishedGoods 788us-gaap_InventoryFinishedGoods
Inventory, net $ 704us-gaap_InventoryNet $ 811us-gaap_InventoryNet