Property and Equipment - Additional Information (Detail) (USD $)
|
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 30, 2014
|
Sep. 30, 2013
|
Sep. 30, 2014
|
Sep. 30, 2013
|
|
Property, Plant and Equipment [Abstract] | ||||
Depreciation expense | $ 40,789 | $ 33,306 | $ 114,261 | $ 97,622 |