Note 11 - Equity Offerings

3 Months Ended

Mar. 31, 2023

Notes to Financial Statements

Equity [Text Block]

11. Equity Offerings

2022 ATM Offering. On March 18, 2022, the Company entered a Controlled Equity Offering Sales Agreement (the “2022 Sales Agreement”), with Cantor Fitzgerald & Co., and Oppenheimer & Co. Inc. The Company commenced an at-the-market offering (the “2022 ATM Offering”) pursuant to which the Company could sell from time to time, at its option, up to an aggregate of $100.0 million shares of the Company’s common stock. No sales of common stock were made under the 2022 ATM Offering during the three months ended March 31, 2023 and 2022, respectively.