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Inventory (Details Narrative) (USD $)
3 Months Ended 9 Months Ended
Sep. 30, 2013
Sep. 30, 2013
Sep. 30, 2012
Inventory Details      
Inventory exchange book value $ 830,000    
Inventory reserve   1,207,000 945,000
Inventory valuation adjustments   $ 699,000 $ 161,000