Stockholders' Equity - Additional Information (Detail) (USD $)	1 Months Ended	3 Months Ended		0 Months Ended	1 Months Ended	0 Months Ended
	Dec. 17, 2013	Mar. 31, 2015	Mar. 31, 2014	Nov. 01, 2014	Jan. 31, 2014	Feb. 27, 2015	Dec. 31, 2014	Jun. 06, 2014	Oct. 31, 2014
Class of Stock [Line Items]
Common stock, par value		$ 0.001					$ 0.001
Common Stock, Shares Authorized		100,000,000					100,000,000
Preferred Stock, Shares Authorized		10,000,000					10,000,000
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 2.66				$ 3.04
Warrants To Purchase Shares Of Common Stock	700,935
Preferred Stock, Par or Stated Value Per Share		$ 0.001					$ 0.001
Proceeds from Issuance of Private Placement	$ 2,750,000
Debt Instrument Convertible Threshold Stock Price		$ 0.289
Proceeds from Issuance of Common Stock		0	6,487,850
Warrant [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights					238,412
Fair Value Adjustment of Warrants				164,196	348,963
Class of Warrant or Right, Exercise Price of Warrants or Rights		$ 2.66		$ 2.07	$ 3.04
Class of Warrant or Right, Date from which Warrants or Rights Exercisable		Jun. 30, 2016			Jan. 31, 2019
Warrants To Purchase Shares Of Common Stock		648,738		277,500
Warrant [Member] | Fortress Agreement [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights					$ 2.27
Warrant Two [Member]
Class of Stock [Line Items]
Fair Value Adjustment of Warrants						4,960
Class of Warrant or Right, Exercise Price of Warrants or Rights						$ 2.00
Warrants To Purchase Shares Of Common Stock						26,989
Warrant One [Member]
Class of Stock [Line Items]
Fair Value Adjustment of Warrants						172,319
Class of Warrant or Right, Exercise Price of Warrants or Rights						$ 1.14
Warrants To Purchase Shares Of Common Stock						500,000
Preferred Stock Series A-1 [Member]
Class of Stock [Line Items]
Common stock, par value		$ 0.007073
Proceeds from Issuance of Convertible Preferred Stock		3,308,874
Temporary Equity, Redemption Price Per Share		$ 0.55
Temporary Equity, Liquidation Preference Per Share		$ 0.01
Debt Instrument Convertible Threshold Stock Price		$ 0.289
Conversion of Stock, Shares Converted		2,168,624
Preferred Stock Series A-2 [Member]
Class of Stock [Line Items]
Common stock, par value		$ 1.202065
Proceeds from Issuance of Convertible Preferred Stock		1,134,016
Temporary Equity, Redemption Price Per Share		$ 0.96
Temporary Equity, Liquidation Preference Per Share		$ 1.6996
Redeemable Convertible Preferred Stock [Member]
Class of Stock [Line Items]
Proceeds from Issuance of Convertible Preferred Stock		4,950,000
Series B Preferred Stock [Member]
Class of Stock [Line Items]
Common stock, par value		$ 1,000
Preferred Stock, Shares Issued	2,750
Preferred Stock, Par or Stated Value Per Share	$ 1,000
Debt Instrument, Convertible, Conversion Price		$ 2.00
Series A Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Shares Issued								6,176,748
Debt Instrument Convertible Threshold Stock Price		$ 0.289
Proceeds from Issuance of Common Stock		$ 20,000,000
Series A-2 redeemable convertible preferred stock [Member]
Class of Stock [Line Items]
Conversion of Stock, Shares Converted		70,000
Maximum [Member]
Class of Stock [Line Items]
Common Stock, Shares Authorized		110,000,000
Minimum [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights									$ 2.27
Minimum [Member] | Series B Preferred Stock [Member] | Subsequent Event [Member]
Class of Stock [Line Items]
Debt Instrument, Convertible, Conversion Price		$ 0.46