Related Party Transactions - Additional Information (Detail) (USD $)	12 Months Ended		0 Months Ended	1 Months Ended
	Dec. 31, 2014	Dec. 31, 2013	Jan. 24, 2014	Jan. 31, 2014	Nov. 30, 2013
Compensation Plans [Line Items]
Notes payable to related party		$ 205,314
Payment made to the company by the beneficial owner	808,195	81,550
Number of options exercised	1,138,331	30,500
Payment to related party	141,626	64,000
Clarence E. Smith [Member]
Compensation Plans [Line Items]
Beneficial ownership percentage				5.00%	5.00%
Notes payable to related party		205,314
Payment made to the company by the beneficial owner					$ 200,000
Exercised price				$ 1.50	$ 1.50
Number of options exercised			138,331	138,331