Quarterly report pursuant to Section 13 or 15(d)

Warrants - Additional Information (Detail)

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Warrants - Additional Information (Detail) - USD ($)
1 Months Ended 12 Months Ended
Dec. 23, 2014
Dec. 31, 2014
Dec. 31, 2014
Equity [Abstract]      
Number of common stock purchased   542,360 542,360
Exercise price of warrants $ 2.00 $ 2.00 $ 2.00
Warrant exercisable period 5 years 5 years  
Warrant expense recognized     $ 664,064