Stockholders' Equity - Additional Information 1 (Detail) - USD ($)						3 Months Ended
	Aug. 04, 2015	May 08, 2015	May 01, 2015	Mar. 23, 2015	Feb. 28, 2014	Mar. 31, 2016
Stockholders Equity [Line Items]
Unvested stock-based compensation at fair value of remaining shares						$ 8,626
Intrinsic value of options outstanding						0
Intrinsic value of options exercisable						$ 0
Directors [Member] | Non-qualified Stock Options [Member]
Stockholders Equity [Line Items]
Options expiration term				7 years
Non-qualified stock options issued to directors				10,000
Options exercise price per share				$ 0.19
Stock options fair value per share				$ 0.14
2005 Equity Incentive Plan [Member]
Stockholders Equity [Line Items]
Common stock reserved for issuance						283,058
Plan expiration date						Oct. 20, 2015
Options expiration term						10 years
2005 Equity Incentive Plan [Member] | Directors, Officers and Chief Medical Advisor [Member]
Stockholders Equity [Line Items]
Common stock warrants, issued				1,125,000	1,457,100
Common stock warrants, term				10 years	10 years
Common stock warrants, exercise price				$ 0.60	$ 0.80
Common stock warrants, premium percentage				216.00%	57.00%
Common stock warrants, fair value per share				$ 0.10	$ 0.34
2005 Equity Incentive Plan [Member] | Directors and Employees [Member]
Stockholders Equity [Line Items]
Common stock warrants, issued			550,000
Common stock warrants, term			10 years
Common stock warrants, exercise price			$ 0.60
Common stock warrants, premium percentage			20.00%
Common stock warrants, fair value per share			$ 0.37
Common stock warrants, vested			300,000
Vesting period			1 year
2005 Equity Incentive Plan [Member] | Directors and Employees [Member] | 1 Year Cliff Vesting [Member]
Stockholders Equity [Line Items]
Common stock warrants, vested			250,000
2005 Equity Incentive Plan [Member] | Consultant [Member]
Stockholders Equity [Line Items]
Common stock warrants, issued		100,000
Common stock warrants, term		10 years
Common stock warrants, exercise price		$ 0.60
Common stock warrants, premium percentage		33.00%
Common stock warrants, fair value per share		$ 0.41
Common stock warrants, vested		40,000
Agreement termination date						Aug. 04, 2015
Common stock warrants cancelled	60,000
2005 Equity Incentive Plan [Member] | Consultant [Member] | Warrants Vested Over Three Quarters [Member]
Stockholders Equity [Line Items]
Common stock warrants, vested		60,000