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13. WARRANTS | 3 Months Ended
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Dec. 31, 2018
Warrants Abstract |
WARRANTS | Transactions involving our equity-classified warrants are summarized as follows:
|  | Number of shares |  |  | Weighted-average exercise price |  |  | Weighted- average remaining contractual term (in years) |  |  | Aggregate intrinsic value (in thousands) |
Outstanding at September 30, 2018 |  |  | 312,176 |  |  | $ | 6.84 |  |  |  |  |  |  |
Issued |  |  | 51,429 |  |  |  | 4.375 |  |  |  |  |  |  |
Exercised |  |  | - |  |  |  | - |  |  |  |  |  |  |
Forfeited |  |  | - |  |  |  | - |  |  |  |  |  |  |
Outstanding at December 31, 2018 |  |  | 363,605 |  |  | $ | 6.49 |  |  |  | 3.49 |  |  | $ | — |
Exercisable at December 31, 2018 |  |  | 363,605 |  |  | $ | 6.49 |  |  |  | 3.49 |  |  | $ | — |
The following table summarizes outstanding common stock purchase warrants as of December 31, 2018:
|  | Number ofshares |  |  | Weighted-averageexerciseprice |  | Expiration
Exercisable at $7.80 per share |  |  | 141,676 |  |  | $ | 7.80 |  | September 2021
Exercisable at $4.00 per share |  |  | 70,500 |  |  | $ | 4.00 |  | September 2022
Exercisable at $7.50 per share |  |  | 100,000 |  |  | $ | 7.50 |  | October 2022
Exercisable at $4.375 per share |  |  | 51,429 |  |  | $ | 4.375 |  | September 2023
|  |  | 363,605 |  |  |  | 6.49 |  |

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