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Inventories - Schedule of Inventories (Details) (USD $)
In Thousands, unless otherwise specified
Mar. 31, 2015
Dec. 31, 2014
Inventory Disclosure [Abstract]    
Raw materials $ 166us-gaap_InventoryRawMaterials $ 203us-gaap_InventoryRawMaterials
Work-in-process 72us-gaap_InventoryWorkInProcess 63us-gaap_InventoryWorkInProcess
Finished goods 36us-gaap_InventoryFinishedGoods 83us-gaap_InventoryFinishedGoods
Total inventory $ 274us-gaap_InventoryNet $ 349us-gaap_InventoryNet