Intangible Assets (Schedule of Intangible Assets) (Detail) - USD ($)	Dec. 31, 2015	Dec. 31, 2014
Schedule of Intangible Assets Disclosure [Line Items]
Patent costs	$ 1,154,523	$ 1,154,523
Less - Accumulated amortization	(1,029,497)	(958,758)
Finite-lived Intangible Assets Write Off	(66,147)	0
Total	$ 58,879	$ 195,765