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Note 2 - Inventory (Details) - Summary of Inventories (USD $)
Sep. 30, 2013
Dec. 31, 2012
Summary of Inventories [Abstract]    
Furnace parts and supplies $ 1,011,408 $ 986,278
Raw materials 710,226 705,025
Work in process 2,022,679 1,502,144
Finished goods 1,290,462 990,935
Reserve for obsolescence (216,079) (72,567)
Net Inventory $ 4,818,696 $ 4,111,815