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Inventory Components (Details) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Inventory Disclosure [Abstract]    
Raw materials and sub-assemblies $ 787,818us-gaap_InventoryRawMaterials $ 930,886us-gaap_InventoryRawMaterials
Finished goods 20,059us-gaap_InventoryFinishedGoods 26,441us-gaap_InventoryFinishedGoods
Total $ 807,877us-gaap_InventoryNet $ 957,327us-gaap_InventoryNet