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Income Taxes (Details) (USD $)
Sep. 30, 2012
Dec. 31, 2011
Deferred tax assets:    
Net operating loss and tax credit carryforwards $ 48,537,961  
Capital loss carryforward 384,901  
Accrued expenses 62,625  
Reserve for accounts receivable 2,087,344  
Reserve for inventory 133,155  
Start-up costs 107,074  
Excess of book over tax depreciation 1,187,108  
Stock option and restricted stock award expense 1,578,615  
Investment in unconsolidated entity 3,695,636  
Less: valuation allowance (57,583,166) (52,515,797)
Deferred tax assets 191,253  
Deferred tax liability:    
Property and equipment basis 69,260  
Prepaid expenses 121,993  
Deferred tax liabilities 191,253  
Net deferred tax asset $ 0