Intangible Assets (Schedule of Intangible Assets) (Detail) (USD $)	Mar. 31, 2014	Dec. 31, 2013
Schedule of Intangible Assets Disclosure [Line Items]
Patent costs	$ 1,154,523	$ 1,154,523
Less — Accumulated amortization	(888,183)	(864,658)
Total	$ 266,340	$ 289,865