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Note 6 - Common Stock Options (Tables)

3 Months Ended

Mar. 31, 2022

Notes Tables

Share-Based Payment Arrangement, Option, Activity [Table Text Block]

		Options				Exercise Price					Weighted-Average Exercise Price
Options outstanding at December 31, 2021			4,656,677			$2.71	-	$21.74				10.68
Granted			14,000			$8.75	-	$11.25				9.99
Exercised			-				-					-
Forfeitures			(31,767	)		$10.36	-	$18.81				13.88
Options outstanding at March 31, 2022			4,638,910			$2.71	-	$21.74				10.66

X

- Definition

Tabular disclosure for stock option plans. Includes, but is not limited to, outstanding awards at beginning and end of year, grants, exercises, forfeitures, and weighted-average grant date fair value.

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- References

No definition available.

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