Quarterly report pursuant to Section 13 or 15(d)

Stockholders' Equity - Additional Information (Detail)

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Stockholders' Equity - Additional Information (Detail)
1 Months Ended 2 Months Ended 3 Months Ended 4 Months Ended 6 Months Ended
Oct. 12, 2016
USD ($)
$ / shares
shares
May 13, 2016
USD ($)
$ / shares
shares
Jan. 25, 2017
$ / shares
shares
Jul. 21, 2016
USD ($)
$ / shares
shares
May 31, 2016
USD ($)
May 16, 2016
USD ($)
$ / shares
shares
Jan. 21, 2016
USD ($)
$ / shares
shares
Oct. 31, 2016
shares
Jun. 30, 2017
USD ($)
$ / shares
shares
Oct. 31, 2016
USD ($)
shares
Jun. 30, 2017
USD ($)
$ / shares
shares
Jun. 30, 2016
USD ($)
Mar. 08, 2017
$ / shares
Dec. 31, 2016
$ / shares
shares
Class of Stock [Line Items]                            
Common Stock, Shares Authorized | shares                 100,000,000   100,000,000     100,000,000
Preferred Stock, Shares Authorized | shares                 10,000,000   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 | $ / shares             $ 1.79              
Preferred Stock, Par or Stated Value Per Share | $ / shares                 $ 0.001   $ 0.001     $ 0.001
Proceeds from Issuance of Common Stock                     $ 0 $ 1,182,278    
Conversion Price Per Share | $ / shares             $ 1.50              
Percentage of Investors Subscription Amount             85.00%              
Commission Of Placement Agent, Percentage             10.00%              
Commission Of Placement Agent, Value             $ 250,000              
Preferred Stock, Redemption Terms       Following subsequent amendments to the Series E Purchase Agreement, the Series E Preferred Stock is redeemable at the option of the Company at 170% of the then outstanding conversion amount, and is convertible into common stock at a conversion price equal to the lesser of (a) $2.005 per share, or (b) 65% of the volume weighted average price of our common stock for ten consecutive days prior to the applicable conversion date). The Series E Purchase Agreement required the Company to hold a special meeting of stockholders to seek the approval of the holders of its 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 within 120 days of the execution of the Series E Purchase Agreement.  The Company obtained the requisite shareholder approval on March 8, 2017.                    
Purchase Agreement 2016 [Member]                            
Class of Stock [Line Items]                            
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares           $ 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                        
Chardan Capital Markets [Member]                            
Class of Stock [Line Items]                            
Cash Paid To Placement Agent         $ 116,932                  
Investor [Member]                            
Class of Stock [Line Items]                            
Legal Fees                     50,000      
Payments for Underwriting Expense                     $ 25,000      
Purchase Agreement [Member]                            
Class of Stock [Line Items]                            
Sale of Stock, Price Per Share | $ / shares           $ 2.005                
Proceeds from Issuance of Common Stock           $ 1,300,000                
Stock Issued During Period, Shares, New Issues | shares           648,000                
Public Offering [Member]                            
Class of Stock [Line Items]                            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares 6,000,000                          
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares $ 1.00                          
Proceeds from Issuance or Sale of Equity $ 6,000,000                          
Shares Issued, Price Per Share | $ / shares $ 1.00                          
Sale of Stock, Number of Shares Issued in Transaction | shares 6,000,000                          
Proceeds from Issuance Initial Public Offering $ 5,100,000                          
Payments for Repurchase of Preferred Stock and Preference Stock 1,300,000                          
Payments for Operating Activities $ 3,800,000                          
Percentage Of Increase In Preferred Stock Redemption Premium 15.00%                          
July 2016 Warrants [Member]                            
Class of Stock [Line Items]                            
Reduction In Exercise Price Of Warrants | $ / shares $ 1.43                          
May 2016 Warrants [Member]                            
Class of Stock [Line Items]                            
Reduction In Exercise Price Of Warrants | $ / shares $ 1.86                          
Series C Convertible Preferred Stock [Member]                            
Class of Stock [Line Items]                            
Proceeds from Issuance Initial Public Offering $ 3,800,000                          
Series E Convertible Preferred Stock [Member]                            
Class of Stock [Line Items]                            
Class of Warrant or Right, Number of Securities Called by Warrants or Rights | shares     1,000,000                      
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares     $ 0.60                      
Preferred Stock Dividends, Income Statement Impact             $ 466,667              
Stock Redeemed or Called During Period, Value                   $ 2,474        
Stock Redeemed or Called During Period, Shares | shares                   3,837,400        
Preferred Stock Redemption Premium                   $ 1,363,400        
Preferred Stock, Redemption Terms       Following subsequent amendments to the Series E Purchase Agreement, the Series E Preferred Stock is redeemable at the option of the Company at 170% of the then outstanding conversion amount, and is convertible into common stock at a conversion price equal to the lesser of (a) $2.005 per share, or (b) 65% of the volume weighted average price of our common stock for ten consecutive days prior to the applicable conversion date). The Series E Purchase Agreement required the Company to hold a special meeting of stockholders to seek the approval of the holders of its 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 within 120 days of the execution of the Series E Purchase Agreement. The Company obtained the requisite shareholder approval on March 8, 2017.                    
Class Of Warrant Or Rights Expiration Term     5 years 6 months                      
Series C Preferred Stock [Member]                            
Class of Stock [Line Items]                            
Conversion of Stock, Description   common stock issuable upon the conversion of the Series C Preferred Stock in excess of 19.99% of the outstanding common stock and the removal of the adjustment floor within 120 days of the execution of the Series C Purchase Agreement. The Company obtained the requisite shareholder approval on June 28, 2016. Additionally, until the Series C Preferred Stock is no longer outstanding, the Series C Investors may participate in future offerings for up to 50% of the amount of such offerings.                        
Series C Preferred Stock [Member] | Private Placement [Member]                            
Class of Stock [Line Items]                            
Preferred Stock, Par or Stated Value Per Share | $ / shares             $ 1,000              
Conversion of Stock, Shares Converted | shares             1,666,668 21            
Stock Issued During Period, Shares, New Issues | shares             2,500              
Stock Issued During Period, Value, New Issues             $ 2,500,000              
Conversion Price Per Share | $ / shares             $ 1.50              
Series E Preferred Stock [Member]                            
Class of Stock [Line Items]                            
Preferred Stock, Par or Stated Value Per Share | $ / shares       $ 1,000                    
Debt Instrument, Convertible, Conversion Price | $ / shares                         $ 0.50  
Conversion of Stock, Shares Converted | shares       1,496,262         742          
Proceeds from Issuance Initial Public Offering       $ 3,000,000                    
Stock Issued During Period, Value, New Issues       $ 3,000,000                    
Conversion Price Per Share | $ / shares       $ 2.005                    
Preferred Stock, Redemption Terms                     The Company used part of the proceeds from the sale of Series E Preferred Stock to redeem 70% of the outstanding Series C Preferred Stock. In addition, pursuant to the terms of the Series E Purchase Agreement, each of the Series C Investors was entitled to receive an additional premium such that the aggregate redemption amount is 162% of the stated value of the Series C Preferred Stock for the first 60 days after the date of the Series E Purchase Agreement and 180% thereafter.      
Conversion of Stock, Shares Issued | shares                 2,967,000          
Stock Issued During Period, Value, Stock Dividend                 $ 25,018          
Common Stock Dividends, Shares | shares                 100,671          
Series E Preferred Stock [Member] | Private Placement [Member]                            
Class of Stock [Line Items]                            
Stock Issued During Period, Shares, New Issues | shares       3,000                    
Series D Preferred Stock [Member]                            
Class of Stock [Line Items]                            
Class of Warrant or Right, Exercise Price of Warrants or Rights | $ / shares   $ 1.87                        
Percentage of Investors Subscription Amount   85.00%                        
Preferred Stock Convertible Conversion Price   1.98                        
Preferred Stock, Redemption Terms   The Company may redeem some or all of the Series D Preferred Stock for cash in an amount equal to 135% of the aggregate stated value then outstanding.                        
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 | $ / shares   $ 1,000                        
Maximum [Member]                            
Class of Stock [Line Items]                            
Common Stock, Shares Authorized | shares                 110,000,000   110,000,000      
Maximum [Member] | Series E Convertible Preferred Stock [Member]                            
Class of Stock [Line Items]                            
Preferred Stock Redemption Price Percentage     165.00%                      
Minimum [Member] | Series E Convertible Preferred Stock [Member]                            
Class of Stock [Line Items]                            
Preferred Stock Redemption Price Percentage     170.00%