Quarterly report pursuant to Section 13 or 15(d)

Income Taxes - Additional Information (Detail)

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Income Taxes - Additional Information (Detail) - USD ($)
6 Months Ended
Jun. 30, 2015
Jun. 30, 2014
Income Tax Disclosure [Line Items]    
Federal and state income tax, statutory rate 40.00%  
Amount of state tax expense $ 13,000  
Federal [Member]    
Income Tax Disclosure [Line Items]    
Net operating loss carryforwards $ 0 $ 0