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Equity Offering Agreements (Details Narrative) - USD ($)
 12 Months Ended
May 01, 2020
Jun. 07, 2019
Sep. 30, 2020
Sep. 30, 2019
Entity Listings [Line Items]        
Proceeds from sale of common stock     $ 28,754,198 $ 17,832,109
2015 Purchase Agreement [Member] | Lincoln Park Capital Fund, LLC [Member]        
Entity Listings [Line Items]        
Number of share issued       4,872,696
Number of shares issued for aggregate purchase price       4,848,995
Number of shares issued for aggregate purchase price, value       $ 13,197,604
Number of shares issued for commitment       23,701
2019 Purchase Agreement [Member] | Lincoln Park Capital Fund, LLC [Member]        
Entity Listings [Line Items]        
Number of share issued   324,383 7,633,527 1,839,415
Number of shares issued for aggregate purchase price     7,564,584 1,500,000
Number of shares issued for aggregate purchase price, value     $ 21,254,298 $ 4,634,505
Number of shares issued for commitment     68,943 339,415
Total number of shares obligated to purchase   $ 50,000,000    
Agreement term   36 months    
Description of purchases price   The Company may direct Lincoln Park, at its sole discretion, and subject to certain conditions, to purchase up to 200,000 shares of common stock on any business day (a “Regular Purchase”). The amount of a Regular Purchase may be increased under certain circumstances up to 250,000 shares, provided that Lincoln Park’s committed obligation for Regular Purchases on any business day shall not exceed $2,000,000. In the event the Company purchases the full amount allowed for a Regular Purchase on any given business day, the Company may also direct Lincoln Park to purchase additional amounts as accelerated and additional accelerated purchases. The purchase price of shares of common stock related to the future funding will be based on the then prevailing market prices of such shares at the time of sales as described in the 2019 Purchase Agreement.    
Pro rata basic number of shares obligated to purchase   162,191    
Amount of shares remain available     $ 24,111,197 $ 45,365,495
2019 Purchase Agreement [Member] | Lincoln Park Capital Fund, LLC [Member] | Common Stock [Member]        
Entity Listings [Line Items]        
Number of share issued     12,016,457  
Percentage of gross proceeds from sales     19.99%  
Equity Offering Sales Agreement [Member] | Cantor Fitzgerald & Co [Member]        
Entity Listings [Line Items]        
Percentage of gross proceeds from sales     3.00%  
Proceeds from sale of common stock $ 50,000,000   $ 7,096,136  
Number of stock sold     1,760,429  
Gross proceeds from sale of common stock     $ 7,499,900  
Number of shares available     42,500,100