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Income Taxes (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2013
Jun. 30, 2012
Jun. 30, 2013
Jun. 30, 2012
Income Taxes [Abstract]        
Income tax expense $ 0 $ 398,000 $ 0 $ 34,000
Combined federal and state rate used to estimate income tax expense (benefit)     38.00%  
Operating loss carryforwards $ 18,800,000   $ 18,800,000  
Loss carryforwards expiration period range     2022