Prepaid Expenses, Other Current Assets, and Other Assets - Prepaid Expenses and Other Current Assets and Other Assets (Detail) - USD ($)	Dec. 31, 2016	Dec. 31, 2015	Mar. 31, 2015
Deferred Costs Capitalized Prepaid And Other Assets Disclosure [Abstract]
Prepaid expenses	$ 1,085,198	$ 135,002
Security Deposits	2,099,029	182,009
Interest receivable on marketable securities	604,794	441,766
Employee advances	711	2,095
Total prepaid expenses and other current assets	$ 3,789,732	$ 760,872	$ 28,875