Note 9 - Equity Offerings (Tables)

9 Months Ended

Sep. 30, 2021

Notes Tables

Schedule of Sales Under Sales Agency Agreement [Table Text Block]

	For the Nine Months Ended September 30, 2021
Total shares of common stock sold		19,120,037
Average price per share	$	1.47
Gross proceeds	$	28,100
Commissions earned by Cantor	$	843
Net proceeds	$	27,257

	For the Nine Months Ended September 30, 2021
Total shares of common stock sold		352,880
Average price per share	$	3.47
Gross proceeds	$	1,224
Commissions earned by Agents	$	37
Net proceeds	$	1,187