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Stockholders' Equity | 6 Months Ended
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Mar. 31, 2021
Stockholders' Equity Note [Abstract] |
Stockholders' Equity | NOTE 12 – Stockholders’ Equity 2021 Shelf Registration On June 4, 2021, NeuroOne filed a Form S-3 shelf registration statement under the Securities Act, which was declared effective by the SEC on June 14, 2021 (the “2021 Shelf”) under which the Company may offer and sell, from time to time in its sole discretion, securities having an aggregate offering price of up to $150 million. Deferred offering costs in connection with the 2021 Shelf amounted to $24,179 and are reflected in the prepaid and other assets line item in the accompanying condensed balance sheets. 2021 Private Placement On January 12, 2021, the Company entered into a Common Stock and Warrant Purchase Agreement with certain accredited investors, pursuant to which the Company, in the 2021 Private Placement, agreed to issue and sell an aggregate of 4,166,682 shares of the common stock of the Company and warrants to purchase an aggregate of 4,166,682 shares of common stock (the “2021 Warrants”) at an aggregate purchase price of $3.00 per share of common stock and corresponding warrant, resulting in total gross proceeds of $12.5 million before deducting placement agent fees and estimated offering expenses. The 2021 Warrants have an initial exercise price of $5.25 per share. The 2021 Warrants are immediately exercisable and will expire on the fifth anniversary of issuance. Prior to expiration, subject to the terms and conditions set forth in the 2021 Warrants, the holders of such 2021 Warrants may exercise the 2021 Warrants for shares of common stock by providing notice to the Company and paying the exercise price per share for each share so exercised or by utilizing the “cashless exercise” feature contained in each 2021 Warrant. The fair value of the 2021 Warrants was $7.3 million and was based on the Black-Scholes pricing model. Input assumptions used were as follows: a risk-free interest rate of 0.5%; expected volatility of 56.0%; expected life of 5 years; expected dividend yield of 0%; and the underlying traded stock price. $3.7 million of the total proceeds was allocated to the 2021 Warrants based on the relative fair value allocation method, which has been reflected in stockholders’ equity. The 2021 Warrants were classified in stockholders’ equity as the number of shares were fixed and determinable, and no other provisions precluded equity treatment. The private placement closed on January 14, 2021. 2019 Common Stock Offering On October 23, 2019, the Company entered into Securities Purchase Agreements with certain accredited investors, pursuant to which the Company, in a private placement, has issued and sold 47,223 shares of the Company’s common stock to the accredited investors at a price of $5.40 per share, for gross proceeds amounting to $255,000. The Company filed a registration statement with the SEC covering the resale of the shares of common stock sold in the private placement on August 11, 2020. Warrant Activity and Summary The following table summarizes warrant activity during the nine month period ended June 30, 2021:
|  | Warrants |  |  | Exercise Price Per Warrant |  |  | Weighted Average Exercise Price |  |  | Weighted Average Term (years) |
Outstanding and exercisable at September 30, 2020 |  |  | 3,390,320 |  |  | $ | 5.40 - 9.00 |  |  | $ | 7.05 |  |  |  | 2.89 |
Issued |  |  | 4,166,682 |  |  | $ | 5.25 |  |  | $ | 5.25 |  |  |  | — |
Exercised |  |  | (53,194 | ) |  | $ | 5.61-8.25 |  |  | $ | 5.69 |  |  |  | — |
Forfeited |  |  | — |  |  | $ | — |  |  | $ | — |  |  |  | — |
Outstanding and exercisable at June 30, 2021 |  |  | 7,503,808 |  |  |  | $ 5.25-9.00 |  |  | $ | 6.06 |  |  |  | 3.48 |

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- Definition The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 6: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI http://asc.fasb.org/topic&trid=2208762 Reference 9: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644 Reference 10: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (h) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 11: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644 Reference 12: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644 Reference 13: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 16 -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496180-112644 Reference 14: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (i) -URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644 Reference 15: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(e)(1)) -URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 + Details
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