Intangible Assets - Additional Information (Detail) (USD $)	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Schedule of Intangible Assets Disclosure [Line Items]
Patent amortization expense	$ 23,525	$ 27,317	$ 70,575	$ 81,950
Patent life				10 years
Patents [Member]
Schedule of Intangible Assets Disclosure [Line Items]
Patent amortization expense	$ 23,525	$ 27,316	$ 70,575	$ 81,950