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Balance Sheet Details - Inventory (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Details    
Raw Materials $ 2,154,572us-gaap_InventoryRawMaterials $ 2,130,718us-gaap_InventoryRawMaterials
Work in Process 1,664,899us-gaap_InventoryWorkInProcess 1,507,755us-gaap_InventoryWorkInProcess
Finished Goods 1,961,003us-gaap_InventoryFinishedGoods 1,806,315us-gaap_InventoryFinishedGoods
Valuation Reserves (618,000)us-gaap_InventoryValuationReserves (564,000)us-gaap_InventoryValuationReserves
Inventories, net $ 5,162,474us-gaap_InventoryNet $ 4,880,788us-gaap_InventoryNet