Accrued Expenses (Detail) - USD ($)	Sep. 30, 2015	Dec. 31, 2014
Schedule of Accrued Liabilities [Line Items]
Technology fees	$ 450,000	$ 450,000
Professional services	229,189	257,024
Sales taxes	122,901	34,206
Consulting fees	67,200	173,759
Personnel related obligations	64,543	37,761
Clinical study obligations	34,085	74,000
Federal excise tax	26,289	25,989
Other	138,656	212,137
Accrued expenses	$ 1,132,863	$ 1,264,876