Stockholders' Equity - Additional Information (Detail)		1 Months Ended										9 Months Ended
	May 13, 2016 USD ($) $ / shares shares	Jul. 31, 2016	Jul. 21, 2016 USD ($) $ / shares shares	May 31, 2016 USD ($)	May 16, 2016 USD ($) $ / shares shares	Mar. 31, 2016 $ / shares shares	Jan. 21, 2016 USD ($) $ / shares shares	Apr. 30, 2015 USD ($)	Mar. 31, 2015 USD ($)	Nov. 01, 2014 USD ($) $ / shares shares	Jan. 31, 2014 USD ($) $ / shares shares	Sep. 30, 2016 USD ($) $ / shares shares	Sep. 30, 2015 USD ($)	Dec. 31, 2015 USD ($) $ / shares shares	Nov. 30, 2015 $ / shares
Class of Stock [Line Items]
Common Stock, Shares Authorized | shares												100,000,000		100,000,000
Preferred Stock, Shares Authorized | shares												10,000,000		10,000,000
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares							1,416,668
Class of Warrant or Right, Exercise Price of Warrants or Rights							$ 1.79				$ 30.40	$ 2.005
Sale of Stock, Price Per Share						$ 4.60
Preferred Stock, Par or Stated Value Per Share												$ 0.001		$ 0.001
Proceeds from Issuance of Common Stock | $				$ 1,200,000				$ 1,835,000				$ 1,182,278	$ 1,835,000
Stock Issued During Period, Shares, New Issues | shares						467,392
Cash Paid To Holder For Waiver | $														$ 35,000
Preferred Stock, Redemption Terms				(i) on or prior to August 11, 2016, in an amount equal to 120% of the aggregate stated value then outstanding, and (ii) after August 11, 2016, in an amount equal to 135% of the aggregate stated value then outstanding.			(i) on or prior to March 26, 2016, in an amount equal to 126% of the aggregate stated value then outstanding, (ii) after March 26, 2016 and on or prior to July 26, 2016, in an amount equal to 144% of the aggregate stated value then outstanding and (iii) after July 26, 2016, in an amount equal to 150% of the aggregate stated value then outstanding.
Percentage of Investors Subscription Amount							85.00%
Convertible Preferred Stock, Terms of Conversion							(a) the conversion price then in effect or (b) 65% of the volume weighted average price of the Companys common stock for ten consecutive days prior to the applicable conversion date.
Commission Of Placement Agent, Percentage							10.00%
Commission Of Placement Agent, Value | $							$ 250,000
Preferred Stock Dividends, Income Statement Impact | $							466,667
Series E Warrant [Member]
Class of Stock [Line Items]
Conversion Price Per Share			$ 2.005
Percentage of Investors Subscription Amount			85.00%
Purchase Agreement 2016 [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights					$ 2.005
Percentage of Common Stock purchased By Each Purchaser					100.00%
Series D Purchase Agreement [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues | shares	369
Proceeds from Contributions from Affiliates | $	$ 144,000
Ladenburg Thalmann Co. Inc [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares												5,762
Class of Warrant or Right, Exercise Price of Warrants or Rights												$ 5.75
Cash Paid To Placement Agent | $												$ 106,000
Additional Cash paid to Placement Agent | $												$ 50,000
Additional Class Of Warrant Or Right Issued | shares												10,870
Investor [Member]
Class of Stock [Line Items]
Legal Fees | $							$ 25,000					$ 50,000
Chardan Capital Markets [Member]
Class of Stock [Line Items]
Cash Paid To Placement Agent | $				$ 116,932
Fortress Agreement [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights															$ 2.54
Purchase Agreement [Member]
Class of Stock [Line Items]
Sale of Stock, Price Per Share					$ 2.005
Proceeds from Issuance of Common Stock | $					$ 1,300,000				$ 2,150,000
Stock Issued During Period, Shares, New Issues | shares					648,000
Warrant [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares											23,858
Fair Value Adjustment of Warrants | $										$ 164,196	$ 348,963
Class of Warrant or Right, Exercise Price of Warrants or Rights										$ 20.70	$ 30.40
Warrants To Purchase Shares Of Common Stock | shares										27,750
Warrant [Member] | Fortress Agreement [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights											$ 22.70
Common Stock [Member]
Class of Stock [Line Items]
Conversion Price Per Share							$ 1.50
Series C Preferred Stock [Member] | Private Placement [Member]
Class of Stock [Line Items]
Preferred Stock, Par or Stated Value Per Share							$ 1,000
Conversion of Stock, Shares Converted | shares							1,666,668
Stock Issued During Period, Shares, New Issues | shares							2,500
Conversion Price Per Share							$ 1.50
Stock Issued During Period, Value, New Issues | $							$ 2,500,000
Series D Preferred Stock [Member]
Class of Stock [Line Items]
Class of Warrant or Right, Exercise Price of Warrants or Rights	$ 1.87
Preferred stock, Convertible, Conversion Price	1.98
Percentage of Investors subscription amount Called by Warrants or Rights												85.00%
Series D Preferred Stock [Member] | Purchase Agreement [Member]
Class of Stock [Line Items]
Proceeds from Issuance of Convertible Preferred Stock | $	$ 369,000
Sale of Stock, Price Per Share	$ 1,000
Series E Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock, Par or Stated Value Per Share							$ 1,000
Conversion of Stock, Shares Converted | shares			1,496,262
Conversion Price Per Share			$ 2.005
Stock Issued During Period, Value, New Issues | $			$ 3,000,000
Preferred Stock, Redemption Terms		The Series E Preferred Stock contains provisions providing for an adjustment in the conversion price upon the occurrence of certain events, including stock splits, stock dividends, and fundamental transactions. However, in no event may the conversion price be lower than $0.25 per share. The Company may redeem some or all of the Series E Preferred Stock for cash as follows: (i) on or prior to September 25, 2016, in an amount equal to 126% of the aggregate stated value then outstanding, (ii) after September 25, 2016 and on or prior to January 25, 2017, in an amount equal to 144% of the aggregate stated value then outstanding and (iii) after January 25, 2017, in an amount equal to 150% of the aggregate stated value then outstanding.
Convertible Preferred Stock, Terms of Conversion		(a) the conversion price then in effect or (b) 65% of the volume weighted average price of the Companys common stock for ten consecutive days prior to the applicable conversion date.
Conversion of Stock, Description			common stock for the issuance of the number of shares of common stock issuable upon the conversion of the Series E Preferred Stock in excess of 19.99% of the outstanding common stock (the Shareholder Approval). Until the Company obtains the Shareholder Approval, the conversion of the Series E Preferred Stock is limited to 19.99% of the currently outstanding common stock. Additionally, until the Series E Preferred Stock is no longer outstanding, the Investors may participate in future offerings for up to 50% of the amount of such offerings.
Series E Preferred Stock [Member] | Private Placement [Member]
Class of Stock [Line Items]
Stock Issued During Period, Shares, New Issues | shares			3,000
Maximum [Member]
Class of Stock [Line Items]
Common Stock, Shares Authorized | shares												110,000,000
Minimum [Member] | Series C Preferred Stock [Member]
Class of Stock [Line Items]
Preferred Stock Redemption Price Percentage			162.00%