Note 11 - Subsequent Events	3 Months Ended
Mar. 31, 2023
Notes to Financial Statements
Subsequent Events [Text Block]	(11) SUBSEQUENT EVENTS: On April 20, 2023, the Company, completed a private placement of its securities priced at-the-market under the rules of The Nasdaq Stock Market, Inc., to a group of accredited investors that included several directors of the Company and members of management and their affiliates. Investors in the private placement purchased 1,562,883 shares of common and were issued warrants to purchase 1,562,883 shares of common. The purchase price for one share of common stock and a Warrant to purchase one share of common stock was $0.835. The Warrants have an exercise price of $0.71 and have a term of seven years. The gross proceeds of the private placement were $1,305,000. On May 2, 2023, the Company completed the private placement of its securities to Rafael Holdings, Inc., a Delaware corporation, in which Rafael Holdings purchased 2,514,970 shares of common stock, and a warrant to purchase an additional 2,514,970 shares of common (the “Warrant”), for an aggregate purchase price of $2,100,000. The Warrant has an exercise price of $0.71 per share, and will not be exercisable until the Company has obtained the approval of its shareholders to the exercise of the Warrant in accordance with Listing Rules 5635(b) and 5635(d) of The Nasdaq Stock Market, Inc. Following the date of such approval, the Warrant will be exercisable for a period of seven years. Pursuant to the Purchase Agreement, the Company (i) entered into a Registration Rights Agreement with Rafael Holdings requiring the Company to file a registration statement with the Securities and Exchange Commission to register the resale of the shares and shares of common stock underlying the Warrants, upon the request of Rafael Holdings, and (ii) appointed William Conkling, the CEO of Rafael Holdings, to the Company’s Board of Directors.

Note 11 - Subsequent Events

3 Months Ended

Mar. 31, 2023

(11) SUBSEQUENT EVENTS:

On April 20, 2023, the Company, completed a private placement of its securities priced at-the-market under the rules of The Nasdaq Stock Market, Inc., to a group of accredited investors that included several directors of the Company and members of management and their affiliates. Investors in the private placement purchased 1,562,883 shares of common and were issued warrants to purchase 1,562,883 shares of common. The purchase price for one share of common stock and a Warrant to purchase one share of common stock was $0.835. The Warrants have an exercise price of $0.71 and have a term of seven years. The gross proceeds of the private placement were $1,305,000.

On May 2, 2023, the Company completed the private placement of its securities to Rafael Holdings, Inc., a Delaware corporation, in which Rafael Holdings purchased 2,514,970 shares of common stock, and a warrant to purchase an additional 2,514,970 shares of common (the “Warrant”), for an aggregate purchase price of $2,100,000. The Warrant has an exercise price of $0.71 per share, and will not be exercisable until the Company has obtained the approval of its shareholders to the exercise of the Warrant in accordance with Listing Rules 5635(b) and 5635(d) of The Nasdaq Stock Market, Inc. Following the date of such approval, the Warrant will be exercisable for a period of seven years. Pursuant to the Purchase Agreement, the Company (i) entered into a Registration Rights Agreement with Rafael Holdings requiring the Company to file a registration statement with the Securities and Exchange Commission to register the resale of the shares and shares of common stock underlying the Warrants, upon the request of Rafael Holdings, and (ii) appointed William Conkling, the CEO of Rafael Holdings, to the Company’s Board of Directors.