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Income Taxes (Tables)
3 Months Ended
Mar. 31, 2015
Schedule of Components of Income Tax Expense (Benefit) [Table Text Block]
    Three months  
    ended March 31,  
    2015     2014  
             
Expected federal statutory tax benefit $ (231 ) $ (354 )
Increase (reduction) in taxes resulting from:            
     State income taxes recoverable   3      
     Non-deductible expenses (permanent differences)   11     8  
     Change in valuation allowance   1,164     24,749  
     Rate changes   16     36  
     Other   (960 )   228  
Income tax expense $ 3   $ 24,667

 

      We record net deferred tax assets to the extent that we believe such assets will more likely than not be realized. As a result of our cumulative losses and uncertainty with respect to future taxable income, we have provided a full valuation allowance against our net deferred tax assets as March 31, 2014 and 2015.