Note 14 - Subsequent Events

9 Months Ended

Sep. 30, 2020

Notes to Financial Statements

Subsequent Events [Text Block]

14. Subsequent Events

On October 9, 2020, the Company filed a prospectus supplement relating to an “at the market” offering with Cantor pursuant to which the Company may sell from time to time, at its option, up to an aggregate of $40.0 million of shares of the Company’s common stock, through Cantor as sales agent, pursuant to the 2019 Sales Agreement (the “2020 ATM Offering”). Pursuant to the 2019 Sales Agreement, sales of the common stock will be made on the Company’s currently effective Registration Statement on Form S-3, which was declared effective on February 10, 2020. The aggregate compensation payable to Cantor is 3.0% of the aggregate gross proceeds from each sale of the Company’s common stock. No sales have been made under the 2020 ATM Offering as of the date of this report.