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Stock-Based Compensation (Tables) | 12 Months Ended
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Sep. 30, 2021
Share-Based Payment Arrangement [Abstract] |
Schedule of stock-based compensation expense |
|  | 2021 |  |  | 2020 |
Selling, general and administrative |  | $ | 1,550,841 |  |  | $ | 1,623,629 |
Research and development |  |  | 242,358 |  |  |  | 212,341 |
Total stock-based compensation expense |  | $ | 1,793,199 |  |  | $ | 1,835,970 |
Schedule of weighted-average assumptions used in the Black-Scholes option-pricing model |
|  | Number of Options |  |  | Weighted Average Exercise Price |  |  | Weighted- Average Remaining Contractual Term (years) |  |  | Aggregate Intrinsic Value(1) |
Outstanding at September 30, 2019 |  |  | 281,956 |  |  | $ | 5.46 |  |  |  | 9.0 |  |  | $ | 343,406 |
Granted |  |  | 334,731 |  |  | $ | 6.18 |  |  |  | — |  |  |  | — |
Exercised |  |  | (25,515 | ) |  | $ | 0.12 |  |  |  | — |  |  |  | — |
Forfeited/Cancelled |  |  | (98,330 | ) |  | $ | 5.91 |  |  |  | — |  |  |  | — |
Outstanding at September 30, 2020 |  |  | 492,842 |  |  | $ | 6.13 |  |  |  | 8.8 |  |  | $ | 96,088 |
Granted |  |  | 703,117 |  |  | $ | 5.83 |  |  |  | — |  |  |  | — |
Exercised |  |  | (1,538 | ) |  | $ | 6.60 |  |  |  | — |  |  |  | — |
Forfeited/Cancelled |  |  | (71,861 | ) |  | $ | 6.85 |  |  |  | — |  |  |  | — |
Outstanding at September 30, 2021 |  |  | 1,122,560 |  |  | $ | 5.89 |  |  |  | 8.8 |  |  | $ | 127,339 |
Vested and exercisable at September 30, 2021 |  |  | 481,047 |  |  | $ | 5.89 |  |  |  | 8.2 |  |  | $ | 311,388 |
Schedule of weighted-average assumptions used in the Black-Scholes option-pricing model |
|  | 2021 |  |  | 2020 |
Expected stock price volatility |  |  | 55.9 | % |  |  | 53.1 | %
Expected life of options (years) |  |  | 6.0 |  |  |  | 5.6 |
Expected dividend yield |  |  | 0 | % |  |  | 0 | %
Risk free interest rate |  |  | 0.6 | % |  |  | 1.4 | %
Schedule of restricted stock unit activity |
|  | Number of |
|  | Shares |
Non-vested at September 30, 2019 |  |  | 10,503 |
Granted |  |  | 78,323 |
Forfeited |  |  | (2,335 | )
Vested |  |  | (59,793 | )
Non-vested at September 30, 2020 |  |  | 26,698 |
Granted |  |  | 13,776 |
Vested |  |  | (29,090 | )
Non-vested at September 30, 2021 |  |  | 11,384 |

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- Definition Tabular disclosure of the number and weighted-average grant date fair value for restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock units that were granted, vested, or forfeited during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (e) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Tabular disclosure of the significant assumptions used during the year to estimate the fair value of stock options, including, but not limited to: (a) expected term of share options and similar instruments, (b) expected volatility of the entity's shares, (c) expected dividends, (d) risk-free rate(s), and (e) discount for post-vesting restrictions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (f)(2) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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