Stockholders' Equity - Additional Information (Detail) - USD ($)					1 Months Ended	3 Months Ended		6 Months Ended
		Jun. 12, 2015	Jun. 11, 2015	Jan. 01, 2015	Dec. 31, 2013	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014
Stockholders Equity Note [Line Items]
Research and development	[1]					$ 2,016,000	$ 83,887	$ 2,136,386	$ 948,616
Common stock, shares sold		304,785				5,852,646		5,852,646		3,969,106
Common stock, proceeds from sales		$ 50,000						$ 50,000
Number of shares exercised						2,353
Restricted stock units issued			525,000
Restricted stock units, Expense						$ 6,198		$ 6,198
Restricted Stock
Stockholders Equity Note [Line Items]
Stock units outstanding, Fair value			$ 446,250
Share price			$ 0.01
Warrant
Stockholders Equity Note [Line Items]
Shares Issued upon conversion						2,353
Pre Reverse Split
Stockholders Equity Note [Line Items]
Common stock, shares sold		25,906,735
Restricted stock units issued			44,625,000
Patent And Technology Agreement
Stockholders Equity Note [Line Items]
Issuance of shares for services (in shares)				125,000,000
Share price				$ 0.04
Patent And Technology Agreement | Verify Me
Stockholders Equity Note [Line Items]
Worth of common stock to be paid					$ 400,000
Percentage of discount					10.00%
Closing price of share					$ 0.07
Closing price of share after discount					$ 0.063
Research and development					$ 400,000
Patent And Technology Agreement | Pre Reverse Split | Verify Me
Stockholders Equity Note [Line Items]
Issuance of shares for services (in shares)					6,349,206

[1] includes shares based compensation of $2,000,000 for the three and six months ended June 30, 2015 and $0 and $400,000 for the three and six months ended June 30, 2014, related to licensing agreements.