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Note 3. Inventories: Detail of Inventories (Details) (USD $)
Mar. 31, 2015
Dec. 31, 2014
Details    
Parts and supplies $ 553,081us-gaap_InventoryRawMaterials $ 1,004,164us-gaap_InventoryRawMaterials
Work-in-process 241,645us-gaap_InventoryWorkInProcess 951,519us-gaap_InventoryWorkInProcess
Finished goods 518,999us-gaap_InventoryFinishedGoods 569,965us-gaap_InventoryFinishedGoods
Reserve for obsolete inventories (45,471)us-gaap_InventoryValuationReserves (750,000)us-gaap_InventoryValuationReserves
Inventories, net $ 1,268,254us-gaap_InventoryNet $ 1,775,648us-gaap_InventoryNet