Annual report pursuant to Section 13 and 15(d)

Income Taxes (Details 2)

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Income Taxes (Details 2) (USD $)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2013
Dec. 31, 2012
Income Taxes      
Federal net operating loss carryforward subject to IRC Section 382 limitations   $ 130,367,000  
Alternative minimum tax credit carryforward   426,000  
Reconciliation of the beginning and ending amount of uncertain tax positions      
Balance at the beginning of the period 207,000 247,000 247,000
Increases for tax positions of current years 40,000    
Balance at the end of the period 247,000 247,000 247,000
Accrued interest and penalties related to uncertain tax positions   55,000  
Federal
     
Operating loss carryforwards      
Net operating loss carryforwards   305,551,000  
State
     
Operating loss carryforwards      
Net operating loss carryforwards   98,581,000  
Income tax credits   $ 1,070,000