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Exchange Agreements - Additional Information (Detail)
1 Months Ended 6 Months Ended
Jun. 29, 2018
USD ($)
$ / shares
shares
Aug. 30, 2018
shares
Jun. 30, 2018
USD ($)
$ / shares
shares
Mar. 31, 2018
USD ($)
Jun. 30, 2018
USD ($)
$ / shares
shares
Jun. 29, 2018
USD ($)
$ / shares
shares
Dec. 31, 2017
$ / shares
Jun. 30, 2017
shares
Class of Warrant or Right [Line Items]                
Conversion of warrant to common stock | shares 1,593,753   1,593,753   1,593,753 1,593,753  
Stock price per share | $ / shares     $ 0.0001   $ 0.0001   $ 0.0001  
Deemed dividend     $ 56,792   $ 56,792      
Exchange consideration discounted percentage           5    
Convertible Debt [Member]                
Class of Warrant or Right [Line Items]                
Convertible note discount     180,611   180,611      
Carrying value of note     1,319,389   1,319,389      
Debt issuance costs     $ 58,172   $ 58,172      
First Exchange Warrants [Member]                
Class of Warrant or Right [Line Items]                
Conversion of warrant to common stock | shares     2,205,883   2,205,883      
Issuance of common stock for the exchange of warrants | shares 5,030,991              
Stock price per share | $ / shares $ 0.42         $ 0.42    
Convertible notes principal balance $ 1,500,000   $ 1,500,000   $ 1,500,000 $ 1,500,000    
Cash proceeds from common stock $ 1,100,000              
Proceeds from exchange of warrants         4,727,000      
Converted value in excess of principal       $ 3,467,935        
Loss on exchange of warrant         3,593,082      
Transaction costs         $ 125,147      
Convertible debt, interest rate in event of default         112.00%      
Convertion price per share | $ / shares     $ 0.68   $ 0.68      
Weighted average prices of common stock         75.00%      
Weighted average price per share of common stock | $ / shares         $ 0.15      
Interest payable     1.00%   1.00%      
Number of trading days     0   0      
First Exchange Warrants [Member] | Series B Preferred Stock [Member]                
Class of Warrant or Right [Line Items]                
Face value of preferred stock     $ 2,364,044   $ 2,364,044      
Second Warrants Exchange [Member]                
Class of Warrant or Right [Line Items]                
Number unexchanged warrants | shares     756,332   756,332      
Unexchanged warrants     $ 2,229,431   $ 2,229,431      
Warrants exercise price | $ / shares     $ 2.97   $ 2.97      
Second Warrants Exchange [Member] | Series B Preferred Stock [Member]                
Class of Warrant or Right [Line Items]                
Number of shares issued | shares         963,711      
Proceeds from issuance of warrants         $ 22,241      
Second Warrants Exchange [Member] | Subsequent Event [Member]                
Class of Warrant or Right [Line Items]                
Conversion of warrant to common stock | shares   675,679            
Number of shares issued | shares   4,351,136