3. Other Current Assets (Detail) - USD ($)	Jun. 30, 2015	Dec. 31, 2014
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]
Deferred offering costs	$ 21,835	$ 259,989
Prepaid expenses	381,799	498,954
Other current assets	$ 403,634	$ 758,943