Options Outstanding (Detail) (USD $)	9 Months Ended
	Sep. 30, 2014	Dec. 31, 2013
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Exercisable, Number of Shares Issuable	3,068,128
Not vested, Number of Shares Issuable	1,910,000
Balance, Number of Shares Issuable	4,978,128	7,502,421
Exercisable, Weighted-Average Exercise Price	$ 1.03
Not vested, Weighted-Average Exercise Price	$ 1.45
Balance, Weighted-Average Exercise Price	$ 1.19	$ 1.00
Exercisable, Weighted-Average Remaining Term (Years)	2 years 7 months 6 days
Not vested, Weighted-Average Remaining Term (Years)	3 years 9 months 18 days
Balance, Weighted-Average Remaining Term (Years)	3 years
Exercisable, Aggregate Intrinsic Value	$ 3,000
Not vested, Aggregate Intrinsic Value	0
Balance, Aggregate Intrinsic Value	$ 3,000