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Operating Leases - Additional Information (Detail) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2014
Jun. 30, 2013
Jun. 30, 2014
Jun. 30, 2013
Dec. 31, 2013
Leases [Abstract]          
Period of operating lease     5 years    
Deferred rent $ 150,234   $ 150,234   $ 200,947
Operating leases, rent expense $ 96,554 $ 96,317 $ 192,871 $ 177,307  
Lease expiration date     2015-10