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Inventory (Details Narrative) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2013
Jun. 30, 2012
Inventory Details      
Inventory exchange book value $ 670,000    
Inventory reserve   200,000 893,000
Inventory valuation adjustments   $ 606,000 $ 76,000