XML 52 R45.htm IDEA: XBRL DOCUMENT v2.4.0.8
Income Taxes - Significant Components of Deferred Tax Assets and Liabilities (Detail) (USD $)
Sep. 30, 2013
Dec. 31, 2012
Deferred tax assets:    
Net operating loss and tax credit carryforwards $ 45,757,210  
Capital loss carryforward 395,844  
Accrued expenses 64,406  
Deferred revenue 1,020,246  
Reserve for accounts receivable 2,078,681  
Reserve for inventory 133,608  
Start-up costs 110,118  
Excess of book over tax depreciation 1,304,151  
Stock option and restricted stock award expense 1,942,747  
Investment in unconsolidated entity 3,800,697  
Less: valuation allowance (56,412,435) (57,901,529)
Deferred tax assets 195,273  
Deferred tax liability:    
Property and equipment basis 124,044  
Prepaid expenses 71,229  
Deferred tax liabilities 195,273  
Net deferred tax asset $ 0