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Income Taxes - Additional Information (Detail) (USD $)
 3 Months Ended
Mar. 31, 2014
Mar. 31, 2013
Income Taxes [Line Items]    
Net operating loss carryforwards, federal $ 8,400,000  
Net operating loss carryforwards, foreign 1,200,000  
Income tax net operating loss carryforwards 116,900,000  
Net operating loss carryforwards related to foreign income tax 10,700,000  
Net deferred tax asset 0  
Income tax expense 0 150,742
Dividend from subsidiaries 9,600,000  
Estimated annual effective tax rate 34.39%  
Effective tax rate 0.00%  
General duration of loss carryback period 2 years  
Duration of carryback period to 2003 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%  
Net operating loss carryback period option one 3 years  
Net operating loss carryback period option two 4 years  
Net operating loss carryback period option three 5 years  
Start [Member]
    
Income Taxes [Line Items]    
Net operating loss carryforwards expiration year 2018  
End [Member]
    
Income Taxes [Line Items]    
Net operating loss carryforwards expiration year 2032