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Significant Components of Deferred Income Tax Assets (Detail) (USD $)
Mar. 31, 2013
Dec. 31, 2012
Schedule of Deferred Tax Assets and Liabilities [Line Items]    
Net operating loss carry forward $ 5,040,227 $ 4,786,510
Unrealized intercompany profit in inventory 24,919 24,948
Less: Valuation allowance (5,040,227) (4,786,510)
Deferred income tax assets: $ 24,919 $ 24,948