Quarterly Financial Data (Unaudited) (Detail Narrative) - USD ($)	3 Months Ended		12 Months Ended
	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Quarterly Financial Information Disclosure [Abstract]
Product revenue recorded related to agreement		$ 11,300,000	$ 11,300,000	$ 600,000
Gain on Estate litigation settlement	$ 5,300,000		$ 0	$ 5,293,319	$ 0