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Stockholders' Equity (Tables)
 6 Months Ended
Dec. 31, 2019
Schedule of private placements of securities pursuant to unit purchase agreements and subscription agreements
Date of closing   Common Stock Issued     Warrants issued     Unit Price     Net proceeds     Warrant exercise price     Warrant coverage  
October 12, 2018     501,027       325,668     $ 3.60     $ 1,630,991     $ 6.00       .65  
October 18, 2018     410,084       266,555     $ 3.60     $ 1,287,007     $ 6.00       .65  
November 2, 2018     374,864       243,662     $ 3.60     $ 1,215,242     $ 6.00       .65  
December 5, 2018     334,694       217,550     $ 3.60     $ 1,083,307     $ 6.00       .65  
February 12, 2019     201,389       130,903     $ 3.60     $ 725,000     $ 6.00       .65  
March 27, 2019     178,572       89,286     $ 5.60     $ 1,000,000     $ 9.00       .50  
May 14, 2019     569,083       284,541     $ 6.00     $ 3,168,865     $ 9.00       .50  
June 14, 2019     612,914       306,456     $ 6.00     $ 3,274,331     $ 9.00       .50  
June 20, 2019     720,799       360,399     $ 6.00     $ 4,059,050     $ 9.00       .50  
June 28, 2019     71,687       35,845     $ 6.00     $ 395,863     $ 9.00       .50  
Total     3,975,115       2,260,865             $ 17,839,656                  
Schedule of changes in options outstanding

   Number of Shares   Weighted Average Exercise Price Per Share   Weighted Average Remaining Contractual Term
(Years)		   Aggregate Intrinsic
Value		 
Outstanding and expected to vest at June 30, 2017   139,997   $25.64    6.7   $- 
Granted   662,500    3.28    9.3    511,000 
Forfeited   (35,277)   37.00    -    - 
Outstanding and expected to vest at June 30, 2018   767,220   $5.80    8.8   $511,000 
Granted   712,500    4.73    9.5    - 
Forfeited   (6,406)   -    -    - 
Outstanding and expected to vest at June 30, 2019   1,473,314   $5.18    8.6   $4,668,153 
Granted   2,205,000    29.32    9.8    - 
Exercised   (62,712)   -    -   $- 
Outstanding and expected to vest at December 31, 2019   3,615,602   $19.96    9.2   $74,837,043 
Options exercisable at December 31, 2019   632,301   $7.83    7.7   $19,924,698 
Schedule of the changes in outstanding restricted stocks
   Number of Shares   Weighted Average Fair Value Per Share 
Outstanding and expected to issue at June 30, 2017   2,188   $61.00 
Issued   (938)  $61.00 
Forfeited   (1,250)  $61.00 
Outstanding and vested at June 30, 2018   -   $- 
Issued   -   $- 
Forfeited   -   $- 
Outstanding and vested at June 30, 2019   -   $- 
Issued   -   $- 
Forfeited   -   $- 
Outstanding and vested at December 31, 2019   -   $- 
Schedule of changes in outstanding warrants

   Number of Shares   Weighted Average Exercise Price Per Share 
Outstanding and vested at June 30, 2017   971,718   $30.85 
Issued   1,486,482   $6.00 
Exercised   (4,443)  $0.004 
Outstanding and vested at June 30, 2018   2,453,757   $15.845 
Issued   2,691,123   $7.10 
Exercised   (25,004)  $0.004 
Forfeited/Expired   (689,894)  $18.94 
Outstanding and vested at June 30, 2019   4,429,982   $7.12 
Issued   21,250   $10.25 
Exercised   (740,694)  $7.80 
Forfeited/Expired   (63,666)  $13.89 
Outstanding and vested at December 31, 2019   3,646,872   $6.83 
Schedule of stock-based compensation expense

       (Unaudited)         
   Six Months
Ended		   Six Months
Ended		   Year ended   Year ended 
   December 31,   December 31,   June 30,   June 30, 
   2019   2018   2019   2018 
Research and development  $174,500   $29,500   $215,900   $62,500 
General and administrative   2,192,500    386,300    998,100    455,500 
Total  $2,367,000   $415,800   $1,214,000   $518,000 
Stock-based compensation - options [Member]  
Schedule of Black-Scholes option pricing model assumptions

       (Unaudited)         
   Six Months Ended   Six Months Ended   Year ended   Year ended 
   December 31,   December 31,   June 30,   June 30, 
   2019   2018   2019   2018 
Risk free interest rate   1.73 to 1.79%   2.69%   2.37 to 2.69 %   2.14 to 2.61 %
Dividend yield   0%   0%   0%   0%
Volatility   107.4-108.2%   102.3%   101.5-102.3 %   99.9-101.6 %
Expected term (in years)   5 to 6.25    6.25    6.25    6.25 

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