Note 15 - Subsequent Events

9 Months Ended

Sep. 30, 2020

Notes to Financial Statements

Subsequent Events [Text Block]

NOTE

15

.  

Subsequent Events

On

October 13, 2020,

the Company entered into an Open Market Sale Agreement

SM

, (the “Sales Agreement”) pursuant to which it

may

offer and sell, from time to time through sales agents, shares of its common stock having an aggregate offering price of up to

$250

million. The Company incurred direct expenses of approximately

$0.3

million in connection with filing a prospectus supplement, dated

October 13, 2020,

with the SEC, and will pay sales commissions of

4.5%

of gross proceeds from the sale of shares. As of

November 12, 2020

, 

no

shares had been sold under the Sales Agreement.

Changes in the status of litigation since

September 30, 2020

, are included in “Note

9.

Commitments and Contingencies—(c)

Litigation

”.