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Income Taxes - Additional Information (Detail) (USD $)
 3 Months Ended 9 Months Ended 3 Months Ended 9 Months Ended
Sep. 30, 2014
Sep. 30, 2013
Sep. 30, 2014
Sep. 30, 2013
Jun. 30, 2014
Reversal of AMT [Member]
Sep. 30, 2014
Start [Member]
Sep. 30, 2014
End [Member]
Income Taxes [Line Items]              
Net operating loss carryforwards, federal $ 18,800,000   $ 18,800,000        
Net operating loss carryforwards, foreign 2,700,000   2,700,000        
Income tax net operating loss carryforwards 127,400,000   127,400,000        
Net operating loss carryforwards related to foreign income tax 11,900,000   11,900,000        
Net operating loss carryforwards expiration year           2018  
Net operating loss carryforwards expiration year             2032
Net deferred tax asset 0   0        
Income tax expense     0        
Dividend from subsidiaries     21,500,000        
Estimated annual effective tax rate     32.37%        
Effective tax rate 0.00%            
General duration of loss carryback period     2 years        
Duration of carryback period to 2008 tax year     5 years        
Cash tax benefit     0        
Percentage of NOL that will offset future alternative minimum taxable income, 5 years election     100.00%        
Percentage of NOL that will offset future alternative minimum taxable income, general or 2 years     90.00%        
Income tax benefit   $ 235,249 $ (481,055) $ 335,991 $ 481,055