Quarterly report pursuant to Section 13 or 15(d)

Common Stock, Stock Options and Warrants (Details 1)

v3.21.1
Common Stock, Stock Options and Warrants (Details 1)
6 Months Ended
Mar. 31, 2021
$ / shares
shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Number 51,569,059
Investor Warrants [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 9.00
Number 126,669
Expiration Dates April 15, 2021 – April 25, 2021
LMB Warrants [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 7.50
Number 53,110
Expiration Dates March 24, 2022 – April 29, 2022
Financial Advisor Warrants [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 3.00
Number 25,833
Expiration Dates August 15, 2021
2016 Offering Warrants [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 4.13
Number 140,819
Expiration Dates November 23, 2021 – February 27, 2022
2017 Public Offering Investors [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 4.13
Number 1,622,989
Expiration Dates August 2, 2022
2017 Public Offering Underwriter Warrants [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 4.54
Number 65,940
Expiration Dates February 2, 2023
December 2017 Registered Direct/Private Placement Offering Investors [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 4.63
Number 640,180
Expiration Dates June 19, 2023
December 2017 Registered Direct/Private Placement Offering Placement Agent [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 5.87
Number 89,625
Expiration Dates December 19, 2022
March 2018 Registered Direct/Private Placement Offering Investors [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 2.86
Number 218,972
Expiration Dates October 2, 2023
March 2018 Registered Direct/Private Placement Offering Placement Agent [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 3.73
Number 46,866
Expiration Dates March 28, 2023
August 2018 Offering Investors [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.15
Number 3,921,569
Expiration Dates August 14, 2023
August 2018 Offering Agent [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.59
Number 549,020
Expiration Dates August 8, 2023
April 2019 Registered Direct/Private Placement Offering Investors [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.42
Number 1,294,498
Expiration Dates April 5, 2021
April 2019 Registered Direct/Private Placement Offering Placement Agent [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.93
Number 240,130
Expiration Dates April 5, 2021
September 2019 Offering Investors [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 0.77
Number 2,793,297
Expiration Dates September 27, 2024
September 2019 Offering Underwriter [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.12
Number 194,358
Expiration Dates September 27, 2024
February 2020 Exercise Agreement Placement Agent [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.28
Number 143,295
Expiration Dates August 19, 2025
May 2020 Registered Direct Offering Investors [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.00
Number 2,400,000
Expiration Dates November 18, 2025
May 2020 Registered Direct Offering Placement Agent [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.33
Number 494,118
Expiration Dates May 14, 2025
August 2020 Underwriter [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.31
Number 641,166
Expiration Dates August 10, 2025
January 2021 Registered Direct Offering Investors [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.23
Number 6,182,384
Expiration Dates July 27, 2026
January 2021 Registered Direct Offering Agent [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.62
Number 1,081,917
Expiration Dates July 27, 2026
February 2021 Offering Investors [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.70
Number 25,044,164
Expiration Dates February 19, 2026
February 2021 Offering Agent [Member]  
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Exercise price | $ / shares $ 1.88
Number 3,558,140
Expiration Dates February 19, 2026