Stockholders' Equity - Additional Information (Detail) - USD ($)		1 Months Ended					6 Months Ended
	Nov. 01, 2014	Apr. 30, 2015	Mar. 31, 2015	Feb. 27, 2015	Jan. 31, 2014	Dec. 17, 2013	Jun. 30, 2015	Jun. 30, 2014	Dec. 31, 2014	Oct. 31, 2014	Jun. 06, 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					$ 3.04	$ 2.66
Warrants To Purchase Shares Of Common Stock						700,937
Preferred Stock, Par or Stated Value Per Share							$ 0.001		$ 0.001
Proceeds from Issuance of Private Placement						$ 2,750,000
Proceeds from Issuance of Common Stock		$ 1,835,000					$ 1,835,000	$ 6,487,850
Cash Paid To Holder For Waiver							$ 35,000
Class of Warrant or Right, Outstanding											700,937
Ladenburg Thalmann Co. Inc [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights							57,611
Class of Warrant or Right, Exercise Price of Warrants or Rights							$ 0.575
Cash Paid To Placement Agent							$ 106,000
Additional Cash paid to Placement Agent							$ 50,000
Additional Class Of Warrant Or Right Issued							108,697
Purchase Agreement [Member]
Class of Stock [Line Items]
Sale of Stock, Price Per Share			$ 0.46
Proceeds from Issuance of Common Stock			$ 2,150,000
Stock Issued During Period, Shares, New Issues			4,673,914
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	$ 2.07				$ 3.04		$ 2.66
Class of Warrant or Right, Date from which Warrants or Rights Exercisable					Jan. 31, 2019	Jun. 30, 2016	Jun. 30, 2016
Warrants To Purchase Shares Of Common Stock	277,500						700,937
Class of Warrant or Right, Outstanding							586,238
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							167,245
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]
Class of Stock [Line Items]
Debt Instrument, Convertible, Conversion Price							$ 0.46