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Related Party Transactions (Details Narrative) - USD ($)
3 Months Ended 5 Months Ended 6 Months Ended 12 Months Ended
Jan. 02, 2017
Dec. 13, 2016
Jun. 24, 2016
Jun. 02, 2016
Feb. 10, 2016
Oct. 28, 2015
Jun. 30, 2017
Jun. 30, 2016
Jun. 02, 2016
Jun. 30, 2017
Jun. 30, 2016
Dec. 31, 2016
Dec. 31, 2015
Feb. 10, 2017
Oct. 14, 2016
Feb. 24, 2016
Feb. 22, 2016
Jan. 08, 2016
Oct. 02, 2015
Aug. 11, 2015
Warrant to purchase shares of common stock           158,229                       1,800,364    
Maximum percentage of warrants purchase of fully diluted shares of common stock outstanding                                   4.00%    
Fair value of warrants value           $ 172,470                            
Number of shares issued for services, value                   $ (100,930) $ (2,825,943)              
Warrant exercise price per share                                   $ 1.59    
Cost of license                                      
Consulting fees for related party $ 200,000                     0 75,000              
Research and development expense   $ 3,629,041         $ (3,093,863) $ 2,318,735   (1,902,450) 6,996,936 $ 11,602,776 3,666,108              
Founder [Member] | 10 Year Stock Options [Member]                                        
Warrant exercise price per share       $ 2.05         $ 2.05                      
First Anniversary [Member]                                        
Percentage of option vest                                   25.00%    
Second Anniversary [Member]                                        
Percentage of option vest                                   25.00%    
Third Anniversary [Member]                                        
Percentage of option vest                                   25.00%    
Fourth Anniversary [Member]                                        
Percentage of option vest                                   12.50%    
Fifth Anniversary [Member]                                        
Percentage of option vest                                   12.50%    
Note Purchase Agreement [Member] | MTF [Member]                                        
Convertible promissory note                           $ 1,000,000 $ 600,000          
10 Year Stock Options [Member] | Founder [Member]                                        
Number of shares issued in connection with adjustment       33,105                                
AFH [Member]                                        
Warrant to purchase shares of common stock         1,260,255 915,614           867,163                
Maximum percentage of warrants purchase of fully diluted shares of common stock outstanding         10.00%             2.50%                
Fair value of warrants value           $ 275,000                            
Number of shares issued in connection with adjustment         1,260,255                              
Up-front retainer received             100,000     100,000   $ 100,000                
Up-front retainer receivable per month             $ 33,333     33,333   33,333                
Number of shares issued for services, value                   $ 0 $ 325,000 525,000 $ 408,750              
Warrant exercise price per share           $ 1.58                            
AFH [Member] | October 28, 2015 Invoice [Member]                                        
Number of shares issued for services                 20,186                      
AFH [Member] | Letter Agreement February 10, 2016 [Member]                                        
Number of shares issued for services                 23,173                      
AFH [Member] | PIPE [Member] | Minimum [Member]                                        
Fair value of warrants value         $ 8,000,000                              
AFH [Member] | PIPE [Member] | Maximum [Member]                                        
Fair value of warrants value         $ 10,000,000                              
MTF [Member]                                        
Warrant to purchase shares of common stock     700,000                         700,000 731,707   1,153,846 867,163
Maximum percentage of warrants purchase of fully diluted shares of common stock outstanding                                       2.50%
Warrant exercise price per share                                 $ 2.05      
Cost of license     $ 1,435,000                 $ 1,435,000