Quarterly report pursuant to Section 13 or 15(d)

Note 15 - Subsequent Events

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Note 15 - Subsequent Events
3 Months Ended
Mar. 31, 2021
Notes to Financial Statements  
Subsequent Events [Text Block]
15.
Subsequent Events
 
Purchase Agreement with Lincoln Park Capital, LLC
 
In
May 2021,
pursuant to the provisions under the Purchase Agreement, LPC purchased
250,000
shares of the Company's common stock at
$2.817
per share for proceeds of approximately
$704,000.
 
November 2019
Offering
Amendment to Warrant Pricing Terms
 
As a result of the common stock sales to LPC, the Company reduced the exercise price of its Series B, A-
2
and B-
2
common stock warrants from
$3.40
per share to
$2.817
per share pursuant to the terms of the warrants. There is
no
change to the quantity of warrant shares due to this reduction of exercise price.