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Note 5 - Stockholders' Equity | 3 Months Ended
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Sep. 30, 2022
Notes to Financial Statements |
Stockholders' Equity Note Disclosure [Text Block] | (5) Stockholders’ Equity Preferred Stock The Company has issued 280,898 shares of Series D convertible preferred stock (“Series D Preferred Shares”), all of which are issued and outstanding. Series D Preferred Shares are convertible to common stock on a one-to-one basis. Series D Preferred Shares are not callable by the Company. The holder of the preferred stock is entitled to receive, and we shall pay, dividends on shares equal to and in the same form as dividends actually paid on shares of common stock when, and if, such dividends are paid on shares of common stock. No other dividends are paid on the preferred shares. Preferred shares have no voting rights. Upon liquidation, dissolution, or winding-up of the Company, whether voluntary or involuntary, the preferred shares have preference over common stock. The holder of Series D Preferred Shares has the option to convert said shares to common stock at the holder’s discretion. Warrants A summary of the common stock warrant activity for the three months ended September 30, 2022 is presented below:
|  |  |  |  |  |  |  |  |  | Aggregate Fair |  |  | Weighted Average |
|  | Number of Shares |  |  |  |  |  |  | Market Value at |  |  | Remaining |
|  | Underlying Warrants |  |  | Weighted Average |  |  | Issuance (In |  |  | Contractual Term |
|  | (In thousands) |  |  | Exercise Price |  |  | thousands) |  |  | (Years) |
Outstanding June 30, 2022 |  |  | 2,393 |  |  | $ | 2.40 |  |  | $ | 3,747 |  |  |  | 3.60 |
Warrants issued |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Warrants exercised |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Warrants expired |  |  | — |  |  |  | — |  |  |  | — |  |  |  | — |
Outstanding September 30, 2022 |  |  | 2,393 |  |  | $ | 2.40 |  |  | $ | 3,747 |  |  |  | 3.35 |
The following represents a summary of the warrants outstanding at each of the dates identified:
|  |  |  |  |  |  |  |  | Number of Shares Underlying Warrants (In thousands) |
Issue Date |  | Classification |  | Exercise Price |  | Expiration Date |  | September 30, 2022 |  |  | June 30, 2022 |
March 26, 2020 |  | Equity |  | $ | 6.25 |  | March 25, 2025 |  |  | 25 |  |  |  | 25 |
March 30, 2020 |  | Equity |  | $ | 4.69 |  | March 27, 2025 |  |  | 61 |  |  |  | 61 |
October 23, 2020 |  | Equity |  | $ | 2.88 |  | October 21, 2025 |  |  | 470 |  |  |  | 470 |
October 28, 2020 |  | Equity |  | $ | 2.69 |  | October 28, 2025 |  |  | 173 |  |  |  | 173 |
February 16, 2021 |  | Equity |  | $ | 4.06 |  | February 11, 2026 |  |  | 171 |  |  |  | 171 |
April 12, 2021 |  | Equity |  | $ | 1.88 |  | April 7, 2026 |  |  | 1,493 |  |  |  | 1,493 |
Total Outstanding |  |  |  |  |  |  |  | 2,393 |  |  |  | 2,393 |
Nasdaq Compliance On December 21, 2021, the Company received a deficiency letter from Nasdaq indicating that, based upon the closing bid price of the Company’s common stock over the preceding 30 consecutive business days, the Company did not meet the minimum bid price of $1.00 per share (the “Bid Price Requirement”) required for continued listing on The Nasdaq Capital Market pursuant to Nasdaq Listing Rule 5550(a)(2). The letter indicated that the Company had a period of 180 calendar days, or until June 20, 2022 (the “First Compliance Period”), in which to regain compliance pursuant to Nasdaq Listing Rule 5810(c)(3)(A) by having the Company’s common stock meet a closing bid price of at least $1.00 for a minimum of ten consecutive business days during the First Compliance Period. The Company determined that it would not be in compliance with the minimum Bid Price Requirement by June 20, 2022. As a result, the Company notified Nasdaq and applied for an extension of the compliance period, as permitted under the original notification. In the application, the Company indicated that it met the continued listing requirement for market value of publicly-held shares and all other initial listing standards for the Nasdaq Capital Market, with the exception of the minimum closing bid price requirement, and provided written notice of its intention to cure the deficiency during the second compliance period of an additional 180 days by effecting a reverse stock split, if necessary. On June 27, 2022, the Company received notification from Nasdaq that the date to achieve compliance had been extended an additional 180 days until December 19, 2022 (the “Second Compliance Period”). The Company plans to carefully assess potential actions to regain compliance during the Second Compliance Period. To regain compliance, the closing bid price of the Company’s common stock must be at least $1.00 per share for a minimum of ten consecutive business days during the Second Compliance Period. If the Company fails to regain compliance on or prior to December 19, 2022, the Company’s stock will be delisted by Nasdaq, unless the Company timely appeals for a hearing before a Nasdaq Hearings Panel. The request for a hearing will stay any suspension or delisting action pending the issuance of the decision of the Nasdaq Hearings Panel following the hearing and the expiration of any additional extension granted by the Nasdaq Hearings Panel.

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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://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -URI https://asc.fasb.org/topic&trid=2208762 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126973232&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 13 -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (c) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496171-112644 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 14 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496171-112644 Reference 6: 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 https://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 18 -Subparagraph (d) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496189-112644 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 13 -Subparagraph (g) -URI https://asc.fasb.org/extlink&oid=126973232&loc=SL123496158-112644 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 https://asc.fasb.org/extlink&oid=126973232&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 https://asc.fasb.org/extlink&oid=126973232&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 https://asc.fasb.org/extlink&oid=126973232&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 https://asc.fasb.org/extlink&oid=126973232&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 https://asc.fasb.org/extlink&oid=126973232&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 https://asc.fasb.org/extlink&oid=126973232&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 https://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690 Reference 16: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 815 -SubTopic 40 -Section 50 -Paragraph 6 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126731327&loc=SL126733271-114008 + Details
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