Organization and Basis of Presentation - Additional Information (Detail) (USD $)	0 Months Ended		1 Months Ended	3 Months Ended			0 Months Ended		1 Months Ended
	Feb. 19, 2014	Aug. 22, 2013	Feb. 28, 2014	Mar. 31, 2014	Dec. 31, 2013		Apr. 03, 2014 Subsequent Event [Member]	Feb. 05, 2014 Common Stock Equivalents of Convertible Preferred Stock [Member]	Feb. 28, 2014 Common Stock Equivalents of Convertible Preferred Stock [Member] Investor
Condensed Financial Statements, Captions [Line Items]
Number of consecutive business days, non-compliance of minimum bid price		30 days
Minimum bid price		$ 1.00
Grace period granted by NASDAQ to regain compliance		180 days
Additional grace period	180 days
Number of purchasers of preferred stock and warrants									2
Preferred stock, shares issued				12,300	0	[1]		12,300	12,300
Preferred stock converted to common stock, shares								14,642,857	14,642,857
Preferred stock converted to common stock, conversion price								$ 0.84	$ 0.84
Warrants issued to purchase common stock								13,297,297	13,297,297
Proceeds from issuance of warrants								$ 11,400,000	$ 11,400,000
Warrants issued, exercise price								0.74	0.74
Warrants issued, exercisable term								5 years	5 years
Purchasers granted rights			1 year
Common stock purchased, shares			202,703
Common stock purchased, share price			$ 0.74
Proceeds from common stock purchased			150,000
Liquidated damages paid				(3,389,940)
Registration rights agreement description				Under the terms of the Registration Rights Agreement, the Company filed a registration statement on March 18, 2014, which was declared effective by the SEC on April 3, 2014. Should this registration statement cease to remain effective for more than ten consecutive calendar days or more than an aggregate of 15 calendar days during any 12-month period, the Company would be subject to additional liquidated damages of up to approximately $500,000
Additional liquidated damages payable							$ 500,000

[1] Derived from the audited balance sheet as of December 31, 2013