Stockholders' Equity - Additional Information - Warrants (Detail) - USD ($)	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	May. 28, 2014	May. 07, 2014
Class Of Warrant Or Right [Line Items]
Warrants issued	0	12,991,000		200,000
Number of exercised warrants	0	0
Warrants related to intangible assets		$ 174,109
Number of warrants expired		0
Warrants outstanding	11,791,000
Contingent Warrants [Member]
Class Of Warrant Or Right [Line Items]
Warrants issued			1,650,000
Warrants forfeited	1,200,000
Warrants outstanding	0	1,750,000
Exercisable Warrants [Member]
Class Of Warrant Or Right [Line Items]
Warrants outstanding	11,791,000	11,241,000
Internally-Developed Software [Member] | Contingent Warrants [Member]
Class Of Warrant Or Right [Line Items]
Warrants related to intangible assets	$ 0	$ 174,109