Annual report pursuant to Section 13 and 15(d)

Common Stock, Stock Options and Warrants (Tables)

v3.10.0.1
Common Stock, Stock Options and Warrants (Tables)
12 Months Ended
Sep. 30, 2018
Stockholders' Equity Note [Abstract]  
Schedule of assumptions used in fair value of stock option grants
    2018     2017     2016  
Risk-free interest rate     2.78 – 2.99 %     1.79 – 1.90 %     0.95 – 1.40 %
Expected dividend yield     0 %     0 %     0 %
Expected term     6.50 – 10 years       6.50 – 10 years       4.75 – 9 years  
Expected volatility     116 %     85 – 108 %     57 – 74 %
Schedule of stock option activity
    Shares     Weighted-
Average
Exercise
Price
    Weighted-
Average
Remaining
Contractual
Term
    Aggregate
Intrinsic
Value
 
Outstanding at September 30, 2017     861,039     $ 6.69                  
Granted     745,000       1.63                  
Exercised                            
Forfeited or expired     (5,000 )     3.45                  
Outstanding at September 30, 2018     1,601,039     $ 4.35       8.56 years     $ 173,291  
Exercisable at September 30, 2018     729,675     $ 7.15       7.10 years     $ 112,541  
Schedule of warrants outstanding
    Exercise price     Number     Expiration Dates
Investor and Placement Agent Warrants   $ 9.00       384,006     September 12, 2019
Investor Warrants     9.00       202,469     March 19, 2020 – September 14, 2020
Investor Warrants     9.00       307,778     November 5, 2020 – April 25, 2021
LMB Warrants     6.15       90,151     June 12, 2019 – March 2, 2021
LMB Warrants     9.90       8,155     September 30, 2019 – January 8, 2020
LMB Warrants     20.70       17,721     November 3, 2019 – March 6, 2020
LMB Warrants     7.50       73,883     August 18, 2020 – March 14, 2021
LMB Warrants     7.50       53,110     March 24, 2022 – April 29, 2022
Financial Advisor Warrants     3.00       25,833     August 15, 2021
2016 Offering Warrants     4.13       140,819     November 23, 2021 – February 27, 2022
Convertible Note Warrants     9.75       40,436     September 12, 2019
2017 Public Offering Warrants     4.13       1,622,989     August 2, 2022
2017 Public Offering Underwriter Warrants     4.54       65,940     February 2, 2023
December 2017 Registered Direct/Private Placement Offering Investor Warrants     4.63       640,180     June 19, 2023
December 2017 Registered Direct/Private Placement Offering Agent Warrants     5.87       89,625     December 19, 2022
March 2018 Registered Direct/Private Placement Offering Investor Warrants     2.86       669,504     October 2, 2023
March 2018 Registered Direct/Private Placement Offering Agent Warrants     3.73       46,866     March 28, 2023
August 2018 Offering Investor Warrants     1.15       7,843,138     August 14, 2023
August 2018 Offering Pre-Funded Unit Warrants     0.01       2,321,569     No expiration date
August 2018 Offering Agent Warrants     1.59       549,020     August 8, 2023
                     
              15,193,192      
Schedule of common stock reserved for future issuances
Stock plan options outstanding     1,601,039  
Stock plan shares available for future grants     1,260,799  
Warrants     15,193,192  
Unit purchase options     201,334  
Total     18,256,364