Note 7 - Subsequent Events	6 Months Ended
Jun. 30, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	Note 7: Subsequent Events For purpose of disclosure in the consolidated financial statements, the Company has evaluated subsequent events through August 9, 2023, the date the consolidated financial statements were available to be issued. Except as discussed below, management is not aware of any material events that have occurred after the balance sheet date that would require adjustment to, or disclosure in the accompanying financial statements. On August 8, 2023, the Company notified Jefferies LLC, or Jefferies, that the Open Market Sale Agreement℠ entered on August 13, 2020 with respect to an at the market offering program will terminate effective August 25, 2023. There have been no sales made under the Open Market Sale Agreement℠.

The entire disclosure for significant events or transactions that occurred after the balance sheet date through the date the financial statements were issued or the date the financial statements were available to be issued. Examples include: the sale of a capital stock issue, purchase of a business, settlement of litigation, catastrophic loss, significant foreign exchange rate changes, loans to insiders or affiliates, and transactions not in the ordinary course of business.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-Name Accounting Standards Codification
-Publisher FASB
-URI https://asc.fasb.org//855/tableOfContent

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 855
-SubTopic 10
-Name Accounting Standards Codification
-Section 50
-Paragraph 2
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147483399/855-10-50-2

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