v2.4.1.9
Balance Sheet Components - Summary of Inventory (Detail) (USD $)
In Thousands, unless otherwise specified
Dec. 31, 2014
Dec. 31, 2013
Inventory Disclosure [Abstract]    
Finished Goods $ 277us-gaap_InventoryFinishedGoodsNetOfReserves $ 230us-gaap_InventoryFinishedGoodsNetOfReserves
Raw Materials 409us-gaap_InventoryRawMaterialsNetOfReserves 288us-gaap_InventoryRawMaterialsNetOfReserves
Total Inventory $ 686us-gaap_InventoryNet $ 518us-gaap_InventoryNet