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Accrued Expenses (Tables)
12 Months Ended
Mar. 31, 2019
Fair Value Disclosures [Abstract]  
Schedule of accrued expenses
   March 31,
   2019  2018
       
 Accrued AV-101 clinical trial, development, and          
      related expenses  $1,067,600   $176,600 
 Accrued compensation   439,200    —   
 Accrued professional services   172,100    27,000 
 All other   6,700    2,700 
           
   $1,685,600   $206,300